Can someone tell me what the check engine light means. It is on my 2005 Honda Accord 4dr. Just came on while driving this morning. I called and they want 120.00 just to check it on the code machine thing? Thats not even to fix it!!! Any ideas, I need to save money here.

Thanks for looking.


UpDate: On the way home the car started having idling problems and the RPMs would go up really high then back to normal while driving. Almost hesitating to accelerate. Any thoughts to what the deal is here?  


Update 2 : End up taking the car to shop after its engine acceleration problems. Guy just called and said it was a VTEC oil pressure Solenoid that needed to be replaced. Does anyone know if that sounds right?

Update last post with total cost FAIL.

Advanced Auto will check it for free. Now calm down.

I think it means you should check the engine.

Just a wild guess

It means the cars computer has detected a problem with your car.
Can you borrow an OBD-II "code machine thing" from someone? that would get you the code which you can then look up online to find out what the problem is.





Edit to add: if you can afford 30-40 bucks you could buy your own OBD-II scanner in case the check engine light ever comes on again in the future.
 

Go to a doctor immediately.

How old is the battery?

This.

+1
They'll tell you. It could be anything from something major to you simply not putting your gas cap on right.

I believe AutoZone does the same thing.

this.....or you can even buy a cheap one. I just bought a "good" back up reader so I don't have to drag the laptop out to retrieve a code. The one I bought was $90. Cheaper than Honda's one time diagnostic only charge. And this reader is compatible with European vehicles and gives code descriptions. Then after you have the info you can Google the code. FYI.....sometimes you get better diagnostics on the web than you get through the dealership.

Here's a list of OBD-II Codes (could be any of them setting off the Check Engine Light)––-including something as simple as not having the gas cap on tight enough, or as complicated as the engine is about to blow up...

P0010-P0099 - Fuel and Air Metering and Auxiliary Emission Controls

   * P0010 "A" Camshaft Position Actuator Circuit (Bank 1)
   * P0011 "A" Camshaft Position - Timing Over-Advanced or System Performance (Bank 1)
   * P0012 "A" Camshaft Position - Timing Over-Retarded (Bank 1)
   * P0013 "B" Camshaft Position - Actuator Circuit (Bank 1)
   * P0014 "B" Camshaft Position - Timing Over-Advanced or System Performance (Bank 1) - See Trouble Code P0011
   * P0015 "B" Camshaft Position -Timing Over-Retarded (Bank 1) - See Trouble Code P0012
   * P0020 "A" Camshaft Position Actuator Circuit (Bank 2)
   * P0021 "A" Camshaft Position - Timing Over-Advanced or System Performance (Bank 2)
   * P0022 "A" Camshaft Position - Timing Over-Retarded (Bank 2)
   * P0023 "B" Camshaft Position - Actuator Circuit (Bank 2) - See Trouble Code P0020
   * P0024 "B" Camshaft Position - Timing Over-Advanced or System Performance (Bank 2) - See Trouble Code P0021
   * P0025 "B" Camshaft Position - Timing Over-Retarded (Bank 2) - See Trouble Code P0022
   * P0030 HO2S Heater Control Circuit (Bank 1 Sensor 1)
   * P0031 HO2S Heater Control Circuit Low (Bank 1 Sensor 1)
   * P0032 HO2S Heater Control Circuit High (Bank 1 Sensor 1)
   * P0033 Turbo Charger Bypass Valve Control Circuit
   * P0034 Turbo Charger Bypass Valve Control Circuit Low
   * P0035 Turbo Charger Bypass Valve Control Circuit High
   * P0036 HO2S Heater Control Circuit (Bank 1 Sensor 2)
   * P0037 HO2S Heater Control Circuit Low (Bank 1 Sensor 2)
   * P0038 HO2S Heater Control Circuit High (Bank 1 Sensor 2)
   * P0040 Upstream Oxygen Sensors Swapped From Bank To Bank
   * P0041 Downstream Oxygen Sensors Swapped From Bank To Bank
   * P0042 HO2S Heater Control Circuit (Bank 1 Sensor 3)
   * P0043 HO2S Heater Control Circuit Low (Bank 1 Sensor 3)
   * P0044 HO2S Heater Control Circuit High (Bank 1 Sensor 3)
   * P0050 HO2S Heater Control Circuit (Bank 2 Sensor 1)
   * P0051 HO2S Heater Control Circuit Low (Bank 2 Sensor 1)
   * P0052 HO2S Heater Control Circuit High (Bank 2 Sensor 1)
   * P0053 HO2S Heater Resistance (Bank 1, Sensor 1)
   * P0054 HO2S Heater Resistance (Bank 1, Sensor 2)
   * P0055 HO2S Heater Resistance (Bank 1, Sensor 3)
   * P0056 HO2S Heater Control Circuit (Bank 2 Sensor 2)
   * P0057 HO2S Heater Control Circuit Low (Bank 2 Sensor 2)
   * P0058 HO2S Heater Control Circuit High (Bank 2 Sensor 2)
   * P0059 HO2S Heater Resistance (Bank 2, Sensor 1)
   * P0060 HO2S Heater Resistance (Bank 2, Sensor 2)
   * P0061 HO2S Heater Resistance (Bank 2, Sensor 3)
   * P0062 HO2S Heater Control Circuit (Bank 2 Sensor 3)
   * P0063 HO2S Heater Control Circuit Low (Bank 2 Sensor 3)
   * P0064 HO2S Heater Control Circuit High (Bank 2 Sensor 3)
   * P0065 Air Assisted Injector Control Range/Performance
   * P0066 Air Assisted Injector Control Circuit or Circuit Low
   * P0067 Air Assisted Injector Control Circuit High
   * P0070 Ambient Air Temperature Sensor Circuit
   * P0071 Ambient Air Temperature Sensor Range/Performance
   * P0072 Ambient Air Temperature Sensor Circuit Low Input
   * P0073 Ambient Air Temperature Sensor Circuit High Input
   * P0074 Ambient Air Temperature Sensor Circuit Intermittent
   * P0075 Intake Valve Control Solenoid Circuit (Bank 1)
   * P0076 Intake Valve Control Solenoid Circuit Low (Bank 1)
   * P0077 Intake Valve Control Solenoid Circuit High (Bank 1)
   * P0078 Exhaust Valve Control Solenoid Circuit (Bank 1)
   * P0079 Exhaust Valve Control Solenoid Circuit Low (Bank 1)
   * P0080 Exhaust Valve Control Solenoid Circuit High (Bank 1)
   * P0081 Intake valve Control Solenoid Circuit (Bank 2)
   * P0082 Intake Valve Control Solenoid Circuit Low (Bank 2)
   * P0083 Intake Valve Control Solenoid Circuit High (Bank 2)
   * P0084 Exhaust Valve Control Solenoid Circuit (Bank 2)
   * P0085 Exhaust Valve Control Solenoid Circuit Low (Bank 2)
   * P0086 Exhaust Valve Control Solenoid Circuit High (Bank 2)

DTC Codes - P0100-P0199 - Fuel and Air Metering

   * P0100 Mass or Volume Air Flow Circuit Malfunction
   * P0101 Mass or Volume Air Flow Circuit Range/Performance Problem
   * P0102 Mass or Volume Air Flow Circuit Low Input
   * P0103 Mass or Volume Air Flow Circuit High Input
   * P0104 Mass or Volume Air Flow Circuit Intermittent
   * P0105 Manifold Absolute Pressure/Barometric Pressure Circuit Malfunction
   * P0106 Manifold Absolute Pressure/Barometric Pressure Circuit Range/Performance Problem
   * P0107 Manifold Absolute Pressure/Barometric Pressure Circuit Low Input
   * P0108 Manifold Absolute Pressure/Barometric Pressure Circuit High Input
   * P0109 Manifold Absolute Pressure/Barometric Pressure Circuit Intermittent
   * P0109 Intake Air Temperature Circuit Malfunction
   * P0111 Intake Air Temperature Circuit Range/Performance Problem
   * P0112 Intake Air Temperature Circuit Low Input
   * P0113 Intake Air Temperature Circuit High Input
   * P0114 Intake Air Temperature Circuit Intermittent
   * P0115 Engine Coolant Temperature Circuit Malfunction
   * P0116 Engine Coolant Temperature Circuit Range/Performance Problem
   * P0117 Engine Coolant Temperature Circuit Low Input
   * P0118 Engine Coolant Temperature Circuit High Input
   * P0119 Engine Coolant Temperature Circuit Intermittent
   * P0120 Throttle Position Sensor/Switch A Circuit Malfunction
   * P0121 Throttle Position Sensor/Switch A Circuit Range/Performance Problem
   * P0122 Throttle Position Sensor/Switch A Circuit Low Input
   * P0123 Throttle Position Sensor/Switch A Circuit High Input
   * P0124 Throttle Position Sensor/Switch A Circuit Intermittent
   * P0125 Insufficient Coolant Temperature for Closed Loop Fuel Control
   * P0126 Insufficient Coolant Temperature for Stable Operation
   * P0128 Coolant Thermostat (Coolant Temperature Below Thermostat Regulating Temperature)
   * P0130 02 Sensor Circuit Malfunction (Bank I Sensor 1)
   * P0131 02 Sensor Circuit Low Voltage (Bank I Sensor I)
   * P0132 02 Sensor Circuit High Voltage (Bank I Sensor 1)
   * P0133 02 Sensor Circuit Slow Response (Bank 1 Sensor 1)
   * P0134 02 Sensor Circuit No Activity Detected (Bank I Sensor 1)
   * P0135 02 Sensor Heater Circuit Malfunction (Bank 1 Sensor 1)
   * P0136 02 Sensor Circuit Malfunction (Bank I Sensor 2)
   * P0137 02 Sensor Circuit Low Voltage (Bank I Sensor 2)
   * P0138 02 Sensor Circuit High Voltage (Bank I Sensor 2)
   * P0139 02 Sensor Circuit Slow Response (Bank 1 Sensor 2)
   * P0140 02 Sensor Circuit No Activity Detected (Bank 1 Sensor 2)
   * P0141 02 Sensor Heater Circuit Malfunction (Bank 1 Sensor 2)
   * P0142 02 Sensor Circuit Malfunction (Bank I Sensor 3)
   * P0143 02 Sensor Circuit Low Voltage (Bank I Sensor 3)
   * P0144 02 Sensor Circuit High Voltage (Bank I Sensor 3)
   * P0145 02 Sensor Circuit Slow Response (Bank 1 Sensor 3)
   * P0146 02 Sensor Circuit No Activity Detected (Bank I Sensor 3)
   * P0147 02 Sensor Heater Circuit Malfunction (Bank I Sensor 3)
   * P0150 02 Sensor Circuit Malfunction (Bank 2 Sensor I)
   * P0151 02 Sensor Circuit Low Voltage (Bank 2 Sensor I)
   * P0152 02 Sensor Circuit High Voltage (Bank 2 Sensor 1)
   * P0153 02 Sensor Circuit Slow Response (Bank 2 Sensor 1)
   * P0154 02 Sensor Circuit No Activity Detected (Bank 2 Sensor 1)
   * P0155 02 Sensor Heater Circuit Malfunction (Bank 2 Sensor 1)
   * P0156 02 Sensor Circuit Malfunction (Bank 2 Sensor 2)
   * P0157 02 Sensor Circuit Low Voltage (Bank 2 Sensor 2)
   * P0158 02 Sensor Circuit High Voltage (Bank 2 Sensor 2)
   * P0159 02 Sensor Circuit Slow Response (Bank 2 Sensor 2)
   * P0160 02 Sensor Circuit No Activity Detected (Bank 2 Sensor 2)
   * P0161 02 Sensor Heater Circuit Malfunction (Bank 2 Sensor 2)
   * P0162 02 Sensor Circuit Malfunction (Bank 2 Sensor 3)
   * P0163 02 Sensor Circuit Low Voltage (Bank 2 Sensor 3)
   * P0164 02 Sensor Circuit High Voltage (Bank 2 Sensor 3)
   * P0165 02 Sensor Circuit Slow Response (Bank 2 Sensor 3)
   * P0166 02 Sensor Circuit No Activity Detected (Bank 2 Sensor 3)
   * P0167 02 Sensor Heater Circuit Malfunction (Bank 2 Sensor 3)
   * P0170 Fuel Trim Malfunction (Bank 1)
   * P0171 System too Lean (Bank 1)
   * P0172 System too Rich (Bank 1)
   * P0173 Fuel Trim Malfunction (Bank 2)
   * P0174 System too Lean (Bank 2)
   * P0175 System too Rich (Bank 2)
   * P0176 Fuel Composition Sensor Circuit Malfunction
   * P0177 Fuel Composition Sensor Circuit Range/Performance
   * P0178 Fuel Composition Sensor Circuit Low Input
   * P0179 Fuel Composition Sensor Circuit High Input
   * P0180 Fuel Temperature Sensor A Circuit Malfunction
   * P0181 Fuel Temperature Sensor A Circuit Range/Performance
   * P0182 Fuel Temperature Sensor A Circuit Low Input
   * P0183 Fuel Temperature Sensor A Circuit High Input
   * P0184 Fuel Temperature Sensor A Circuit Intermittent
   * P0185 Fuel Temperature Sensor B Circuit Malfunction
   * P0186 Fuel Temperature Sensor B Circuit Range/Performance
   * P0187 Fuel Temperature Sensor B Circuit Low Input
   * P0188 Fuel Temperature Sensor B Circuit High Input
   * P0189 Fuel Temperature Sensor B Circuit Intermittent
   * P0190 Fuel Rail Pressure Sensor Circuit Malfunction
   * P0191 Fuel Rail Pressure Sensor Circuit Range/Performance
   * P0192 Fuel Rail Pressure Sensor Circuit Low Input
   * P0193 Fuel Rail Pressure Sensor Circuit High Input
   * P0194 Fuel Rail Pressure Sensor Circuit Intermittent
   * P0195 Engine Oil Temperature Sensor Malfunction
   * P0196 Engine Oil Temperature Sensor Range/Performance
   * P0197 Engine Oil Temperature Sensor Low
   * P0198 Engine Oil Temperature Sensor High
   * P0199 Engine Oil Temperature Sensor Intermittent

DTC Codes - P0200-P0299 - Fuel and Air Metering (Injector Circuit)

   * P0200 Injector Circuit Malfunction
   * P0201 Injector Circuit Malfunction - Cylinder 1
   * P0202 Injector Circuit Malfunction - Cylinder 2
   * P0203 Injector Circuit Malfunction - Cylinder 3
   * P0204 Injector Circuit Malfunction - Cylinder 4
   * P0205 Injector Circuit Malfunction - Cylinder 5
   * P0206 Injector Circuit Malfunction - Cylinder 6
   * P0207 Injector Circuit Malfunction - Cylinder 7
   * P0208 Injector Circuit Malfunction - Cylinder 8
   * P0209 Injector Circuit Malfunction - Cylinder 9
   * P0210 Injector Circuit Malfunction - Cylinder 10
   * P0211 Injector Circuit Malfunction - Cylinder 11
   * P0212 Injector Circuit Malfunction - Cylinder 12
   * P0213 Cold Start Injector 1 Malfunction
   * P0214 Cold Start Injector 2 Malfunction
   * P0215 Engine Shutoff Solenoid Malfunction
   * P0216 Injection Timing Control Circuit Malfunction
   * P0217 Engine Overtemp Condition
   * P0218 Transmission Over Temperature Condition
   * P0219 Engine Overspeed Condition
   * P0220 Throttle/Petal Position Sensor/Switch B Circuit Malfunction
   * P0221 Throttle/Petal Position Sensor/Switch B Circuit Range/Performance Problem
   * P0222 Throttle/Petal Position Sensor/Switch B Circuit Low Input
   * P0223 Throttle/Petal Position Sensor/Switch B Circuit High Input
   * P0224 Throttle/Petal Position Sensor/Switch B Circuit Intermittent
   * P0225 Throttle/Petal Position Sensor/Switch C Circuit Malfunction
   * P0226 Throttle/Petal Position Sensor/Switch C Circuit Range/Performance Problem
   * P0227 Throttle/Petal Position Sensor/Switch C Circuit Low Input
   * P0228 Throttle/Petal Position Sensor/Switch C Circuit High Input
   * P0229 Throttle/Petal Position Sensor/Switch C Circuit Intermittent
   * P0230 Fuel Pump Primary Circuit Malfunction
   * P0231 Fuel Pump Secondary Circuit Low
   * P0232 Fuel Pump Secondary Circuit High
   * P0233 Fuel Pump Secondary Circuit Intermittent
   * P0234 Engine Overboost Condition
   * P0235 Turbocharger Boost Sensor A Circuit Malfunction
   * P0236 Turbocharger Boost Sensor A Circuit Range/Performance
   * P0237 Turbocharger Boost Sensor A Circuit Low
   * P0238 Turbocharger Boost Sensor A Circuit High
   * P0239 Turbocharger Boost Sensor B Malfunction
   * P0240 Turbocharger Boost Sensor B Circuit Range/Performance
   * P0241 Turbocharger Boost Sensor B Circuit Low
   * P0242 Turbocharger Boost Sensor B Circuit High
   * P0243 Turbocharger Wastegate Solenoid A Malfunction
   * P0244 Turbocharger Wastegate Solenoid A Range/Performance
   * P0245 Turbocharger Wastegate Solenoid A Low
   * P0246 Turbocharger Wastegate Solenoid A High
   * P0247 Turbocharger Wastegate Solenoid B Malfunction
   * P0248 Turbocharger Wastegate Solenoid B Range/Performance
   * P0249 Turbocharger Wastegate Solenoid B Low
   * P0250 Turbocharger Wastegate Solenoid B High
   * P0251 Injection Pump Fuel Metering Control "A" Malfunction (Cam/Rotor/Injector)
   * P0252 Injection Pump Fuel Metering Control "A" Range/Performance (Cam/Rotor/Injector)
   * P0253 Injection Pump Fuel Metering Control "A" Low (Cam/Rotor/Injector)
   * P0254 Injection Pump Fuel Metering Control "A" High (Cam/Rotor/Injector)
   * P0255 Injection Pump Fuel Metering Control "A" Intermittent (Cam/Rotor/Injector)
   * P0256 Injection Pump Fuel Metering Control "B" Malfunction (Cam/Rotor/Injector)
   * P0257 Injection Pump Fuel Metering Control "B" Range/Performance Injector)
   * P0258 Injection Pump Fuel Metering Control "B" Low (Cam/R
   * P0259 Injection Pump Fuel Metering Control "B" High (Cam/R
   * P0260 Injection Pump Fuel Metering Control "B" Intermittent Injector)
   * P0261 Cylinder I Injector Circuit Low
   * P0262 Cylinder I Injector Circuit High
   * P0263 Cylinder I Contribution/Balance Fault
   * P0264 Cylinder 2 Injector Circuit Low
   * P0265 Cylinder 2 Injector Circuit High
   * P0266 Cylinder 2 Contribution/Balance Fault
   * P0267 Cylinder 3 Injector Circuit Low
   * P0268 Cylinder 3 Injector Circuit High
   * P0269 Cylinder 3 Contribution/Balance Fault
   * P0270 Cylinder 4 Injector Circuit Low
   * P0271 Cylinder 4 Injector Circuit High
   * P0272 Cylinder 4 Contribution/Balance Fault
   * P0273 Cylinder 5 Injector Circuit Low
   * P0274 Cylinder 5 Injector Circuit High
   * P0275 Cylinder S Contribution/Balance Fault
   * P0276 Cylinder 6 Injector Circuit Low
   * P0277 Cylinder 6 Injector Circuit High
   * P0278 Cylinder 6 Contribution/Balance Fault
   * P0279 Cylinder 7 Injector Circuit Low
   * P0280 Cylinder 7 Injector Circuit High
   * P0281 Cylinder 7 Contribution/Balance Fault
   * P0282 Cylinder 8 Injector Circuit Low
   * P0283 Cylinder 8 Injector Circuit High
   * P0284 Cylinder 8 Contribution/Balance Fault
   * P0285 Cylinder 9 Injector Circuit Low
   * P0286 Cylinder 9 Injector Circuit High
   * P0287 Cylinder 9 Contribution/Balance Fault
   * P0288 Cylinder 10 Injector Circuit Low
   * P0289 Cylinder 10 Injector Circuit High
   * P0290 Cylinder 10 Contribution/Balance Fault
   * P0291 Cylinder 11 Injector Circuit Low
   * P0292 Cylinder 11 Injector Circuit High
   * P0293 Cylinder 11 Contribution/Balance Fault
   * P0294 Cylinder 12 Injector Circuit Low
   * P0295 Cylinder 12 Injector Circuit High
   * P0296 Cylinder 12 Contribution/Range Fault

DTC Codes - P0300-P0399 - Ignition System or Misfire

   * P0300 Random/Multiple Cylinder Misfire Detected
   * P0301 Cylinder 1 Misfire Detected
   * P0302 Cylinder 2 Misfire Detected
   * P0303 Cylinder 3 Misfire Detected
   * P0304 Cylinder 4 Misfire Detected
   * P0305 Cylinder 5 Misfire Detected
   * P0306 Cylinder 6 Misfire Detected
   * P0307 Cylinder 7 Misfire Detected
   * P0308 Cylinder 8 Misfire Detected
   * P0309 Cylinder 9 Misfire Detected
   * P0310 Cylinder 10 Misfire Detected
   * P0311 Cylinder 11 Misfire Detected
   * P0312 Cylinder 12 Misfire Detected
   * P0320 Ignition/Distributor Engine Speed Input Circuit Malfunction
   * P0321 Ignition/Distributor Engine Speed Input Circuit Range/Performance
   * P0322 Ignition/Distributor Engine Speed Input Circuit No Signal
   * P0323 Ignition/Distributor Engine Speed Input Circuit Intermittent
   * P0325 Knock Sensor 1 Circuit Malfunction (Bank I or Single Sensor)
   * P0326 Knock Sensor 1 Circuit Range/Performance (Bank 1 or Single Sensor)
   * P0327 Knock Sensor 1 Circuit Low Input (Bank I or Single Sensor)
   * P0328 Knock Sensor 1 Circuit High Input (Bank I or Single Sensor)
   * P0329 Knock Sensor 1 Circuit Intermittent (Bank 1 or Single Sensor)
   * P0330 Knock Sensor 2 Circuit Malfunction (Bank 2)
   * P0331 Knock Sensor 2 Circuit Range/Performance (Bank 2)
   * P0332 Knock Sensor 2 Circuit Low Input (Bank 2)
   * P0333 Knock Sensor 2 Circuit High Input (Bank 2)
   * P0334 Knock Sensor 2 Circuit Intermittent (Bank 2)
   * P0335 Crankshaft Position Sensor A Circuit Malfunction
   * P0336 Crankshaft Position Sensor A Circuit Range/Performance
   * P0337 Crankshaft Position Sensor A Circuit Low Input
   * P0338 Crankshaft Position Sensor A Circuit High Input
   * P0339 Crankshaft Position Sensor A Circuit Intermittent
   * P0340 Camshaft Position Sensor Circuit Malfunction
   * P0341 Camshaft Position Sensor Circuit Range/Performance
   * P0342 Camshaft Position Sensor Circuit Low Input
   * P0343 Camshaft Position Sensor Circuit High Input
   * P0344 Camshaft Position Sensor Circuit Intermittent
   * P0350 Ignition Coil Primary/Secondary Circuit Malfunction
   * P0351 Ignition Coil A Primary/Secondary Circuit Malfunction
   * P0352 Ignition Coil B Primary/Secondary Circuit Malfunction
   * P0353 Ignition Coil C Primary/Secondary Circuit Malfunction
   * P0354 Ignition Coil D Primary/Secondary Circuit Malfunction
   * P0355 Ignition Coil E Primary/Secondary Circuit Malfunction
   * P0356 Ignition Coil F Primary/Secondary Circuit Malfunction
   * P0357 Ignition Coil G Primary/Secondary Circuit Malfunction
   * P0358 Ignition Coil H Primary/Secondary Circuit Malfunction
   * P0359 Ignition Coil I Primary/Secondary Circuit Malfunction
   * P0360 Ignition Coil J Primary/Secondary Circuit Malfunction
   * P0361 Ignition Coil K Primary/Secondary Circuit Malfunction
   * P0362 Ignition Coil L Primary/Secondary Circuit Malfunction
   * P0370 Timing Reference High Resolution Signal A Malfunction
   * P0371 Timing Reference High Resolution Signal A Too Many Pulses
   * P0372 Timing Reference High Resolution Signal A Too Few Pulses
   * P0373 Timing Reference High Resolution Signal A Intermittent/Erratic Pulses
   * P0374 Timing Reference High Resolution Signal A No Pulses
   * P0375 Timing Reference High Resolution Signal B Malfunction
   * P0376 Timing Reference High Resolution Signal B Too Many Pulses
   * P0377 Timing Reference High Resolution Signal B Too Few Pulses
   * P0378 Timing Reference High Resolution Signal B Intermittent/Erratic Pulses
   * P0379 Timing Reference High Resolution Signal B No Pulses
   * P0380 Glow Plug/Heater Circuit "A" Malfunction
   * P0381 Glow Plug/Heater Indicator Circuit Malfunction
   * P0382 Exhaust Gas Recirculation Flow Malfunction
   * P0385 Crankshaft Position Sensor B Circuit Malfunction
   * P0386 Crankshaft Position Sensor B Circuit Range/Performance
   * P0387 Crankshaft Position Sensor B Circuit Low Input
   * P0388 Crankshaft Position Sensor B Circuit High Input
   * P0389 Crankshaft Position Sensor B Circuit Intermittent

DTC Codes - P0400-P0499 - Auxiliary Emissions Controls

   * P0400 Exhaust Gas Recirculation Flow Malfunction
   * P0401 Exhaust Gas Recirculation Flow Insufficient Detected
   * P0402 Exhaust Gas Recirculation Flow Excessive Detected
   * P0403 Exhaust Gas Recirculation Circuit Malfunction
   * P0404 Exhaust Gas Recirculation Circuit Range/Performance
   * P0405 Exhaust Gas Recirculation Sensor A Circuit Low
   * P0406 Exhaust Gas Recirculation Sensor A Circuit High
   * P0407 Exhaust Gas Recirculation Sensor B Circuit Low
   * P0408 Exhaust Gas Recirculation Sensor B Circuit High
   * P0410 Secondary Air Injection System Malfunction
   * P0411 Secondary Air Injection System Incorrect Flow Detected
   * P0412 Secondary Air Injection System Switching Valve A Circuit Malfunction
   * P0413 Secondary Air Injection System Switching Valve A Circuit Open
   * P0414 Secondary Air Injection System Switching Valve A Circuit Shorted
   * P0415 Secondary Air Injection System Switching Valve B Circuit Malfunction
   * P0416 Secondary Air Injection System Switching Valve B Circuit Open
   * P0417 Secondary Air Injection System Switching Valve B Circuit Shorted
   * P0418 Secondary Air Injection System Relay "A" Circuit Malfunction
   * P0419 Secondary Air Injection System Relay "B" Circuit Malfunction
   * P0420 Catalyst System Efficiency Below Threshold (Bank 1)
   * P0421 Warm Up Catalyst Efficiency Below Threshold (Bank 1)
   * P0422 Main Catalyst Efficiency Below Threshold (Bank 1)
   * P0423 Heated Catalyst Efficiency Below Threshold (Bank 1)
   * P0424 Heated Catalyst Temperature Below Threshold (Bank 1)
   * P0430 Catalyst System Efficiency Below Threshold (Bank 2)
   * P0431 Warm Up Catalyst Efficiency Below Threshold (Bank 2)
   * P0432 Main Catalyst Efficiency Below Threshold (Bank 2)
   * P0433 Heated Catalyst Efficiency Below Threshold (Bank 2)
   * P0434 Heated Catalyst Temperature Below Threshold (Bank 2)
   * P0440 Evaporative Emission Control System Malfunction
   * P0441 Evaporative Emission Control System Incorrect Purge Flow
   * P0442 Evaporative Emission Control System Leak Detected (small leak)
   * P0443 Evaporative Emission Control System Purge Control Valve Circuit
   * P0444 Evaporative Emission Control System Purge Control Valve Circuit Open
   * P0445 Evaporative Emission Control System Purge Control Valve Circuit Shorted
   * P0446 Evaporative Emission Control System Vent Control Circuit Malfunction
   * P0447 Evaporative Emission Control System Vent Control Circuit Open
   * P0448 Evaporative Emission Control System Vent Control Circuit Shorted
   * P0449 Evaporative Emission Control System Vent Valve/Solenoid Circuit Malfunction
   * P0450 Evaporative Emission Control System Pressure Sensor Malfunction
   * P0451 Evaporative Emission Control System Pressure Sensor Range/Performance
   * P0452 Evaporative Emission Control System Pressure Sensor Low Input
   * P0453 Evaporative Emission Control System Pressure Sensor High Input
   * P0454 Evaporative Emission Control System Pressure Sensor Intermittent
   * P0455 Evaporative Emission Control System Leak Detected (gross leak)
   * P0456 Evaporative Emissions System - Small leak detected
   * P0457
   * P0458
   * P0459
   * P0460 Fuel Level Sensor Circuit Malfunction
   * P0461 Fuel Level Sensor Circuit Range/Performance
   * P0462 Fuel Level Sensor Circuit Low Input
   * P0463 Fuel Level Sensor Circuit High Input
   * P0464 Fuel Level Sensor Circuit Intermittent
   * P0465 Purge Flow Sensor Circuit Malfunction
   * P0466 Purge Flow Sensor Circuit Range/Performance
   * P0467 Purge Flow Sensor Circuit Low Input
   * P0468 Purge Flow Sensor Circuit High Input
   * P0469 Purge Flow Sensor Circuit Intermittent
   * P0470 Exhaust Pressure Sensor Malfunction
   * P0471 Exhaust Pressure Sensor Range/Performance
   * P0472 Exhaust Pressure Sensor Low
   * P0473 Exhaust Pressure Sensor High
   * P0474 Exhaust Pressure Sensor Intermittent
   * P0475 Exhaust Pressure Control Valve Malfunction
   * P0476 Exhaust Pressure Control Valve Range/Performance
   * P0477 Exhaust Pressure Control Valve Low
   * P0478 Exhaust Pressure Control Valve High
   * P0479 Exhaust Pressure Control Valve Intermittent
   * P0480 Cooling Fan I Control Circuit Malfunction
   * P0481 Cooling Fan 2 Control Circuit Malfunction
   * P0482 Cooling Fan 3 Control Circuit Malfunction
   * P0483 Cooling Fan Rationality Check Malfunction
   * P0484 Cooling Fan Circuit Over Current
   * P0485 Cooling Fan Power/Ground Circuit Malfunction

DTC Codes - P0500-P0599 - Vehicle Speed Controls and Idle Control System

   * P0500 Vehicle Speed Sensor Malfunction
   * P0501 Vehicle Speed Sensor Range/Performance
   * P0502 Vehicle Speed Sensor Low Input
   * P0503 Vehicle Speed Sensor Intermittent/Erratic/High
   * P0505 Idle Control System Malfunction
   * P0506 Idle Control System RPM Lower Than Expected
   * P0507 Idle Control System RPM Higher Than Expected
   * P0510 Closed Throttle Position Switch Malfunction
   * P0520 Engine Oil Pressure Sensor/Switch Circuit Malfunction
   * P0521 Engine Oil Pressure Sensor/Switch Circuit Range/Performance
   * P0522 Engine Oil Pressure Sensor/Switch Circuit Low Voltage
   * P0523 Engine Oil Pressure Sensor/Switch Circuit High Voltage
   * P0530 A/C Refrigerant Pressure Sensor Circuit Malfunction
   * P0531 A/C Refrigerant Pressure Sensor Circuit Range/Performance
   * P0532 A/C Refrigerant Pressure Sensor Circuit Low Input
   * P0533 A/C Refrigerant Pressure Sensor Circuit High Input
   * P0534 Air Conditioner Refrigerant Charge Loss
   * P0550 Power Steering Pressure Sensor Circuit Malfunction
   * P0551 Power Steering Pressure Sensor Circuit Range/Performance
   * P0552 Power Steering Pressure Sensor Circuit Low Input
   * P0553 Power Steering Pressure Sensor Circuit High Input
   * P0554 Power Steering Pressure Sensor Circuit Intermittent
   * P0560 System Voltage Malfunction
   * P0561 System Voltage Unstable
   * P0562 System Voltage Low
   * P0563 System Voltage High
   * P0565 Cruise Control On Signal Malfunction
   * P0566 Cruise Control Off Signal Malfunction
   * P0567 Cruise Control Resume Signal Malfunction
   * P0568 Cruise Control Set Signal Malfunction
   * P0569 Cruise Control Coast Signal Malfunction
   * P0570 Cruise Control Accel Signal Malfunction
   * P0571 Cruise Control/Brake Switch A Circuit Malfunction
   * P0572 Cruise Control/Brake Switch A Circuit Low
   * P0573 Cruise Control/Brake Switch A Circuit High
   * P0574 Cruise Control Related Malfunction
   * P0575 Cruise Control Related Malfunction
   * P0576 Cruise Control Related Malfunction
   * P0576 Cruise Control Related Malfunction
   * P0578 Cruise Control Related Malfunction
   * P0579 Cruise Control Related Malfunction
   * P0580 Cruise Control Related Malfunction

DTC Codes - P0600-P0699 - Computer Output Circuit

   * P0600 Serial Communication Link Malfunction
   * P0601 Internal Control Module Memory Check Sum Error
   * P0602 Control Module Programming Error
   * P0603 Internal Control Module Keep Alive Memory (KAM) Error
   * P0604 Internal Control Module Random Access Memory (RAM) Error
   * P0605 Internal Control Module Read Only Memory (ROM) Error
   * P0606 PCM Processor Fault
   * P0608 Control Module VSS Output "A" Malfunction
   * P0609 Control Module VSS Output "B" Malfunction
   * P0620 Generator Control Circuit Malfunction
   * P0621 Generator Lamp "L" Control Circuit Malfunction
   * P0622 Generator Field "F" Control Circuit Malfunction
   * P0650 Malfunction Indicator Lamp (MIL) Control Circuit Malfunction
   * P0654 Engine RPM Output Circuit Malfunction
   * P0655 Engine Hot Lamp Output Control Circuit Malfunction
   * P0656 Fuel Level Output Circuit Malfunction

DTC Codes - P0700-P0899 - Transmission

   * P0700 Transmission Control System Malfunction
   * P0701 Transmission Control System Range/Performance
   * P0702 Transmission Control System Electrical
   * P0703 Torque Converter/Brake Switch B Circuit Malfunction
   * P0704 Clutch Switch Input Circuit Malfunction
   * P0705 Transmission Range Sensor Circuit malfunction (PRNDL Input)
   * P0706 Transmission Range Sensor Circuit Range/Performance
   * P0707 Transmission Range Sensor Circuit Low Input
   * P0708 Transmission Range Sensor Circuit High Input
   * P0709 Transmission Range Sensor Circuit Intermittent
   * P0710 Transmission Fluid Temperature Sensor Circuit Malfunction
   * P0711 Transmission Fluid Temperature Sensor Circuit Range/Performance
   * P0712 Transmission Fluid Temperature Sensor Circuit Low Input
   * P0713 Transmission Fluid Temperature Sensor Circuit High Input
   * P0714 Transmission Fluid Temperature Sensor Circuit Intermittent
   * P0715 Input/Turbine Speed Sensor Circuit Malfunction
   * P0716 Input/Turbine Speed Sensor Circuit Range/Performance
   * P0717 Input/Turbine Speed Sensor Circuit No Signal
   * P0718 Input/Turbine Speed Sensor Circuit Intermittent
   * P0719 Torque Converter/Brake Switch B Circuit Low
   * P0720 Output Speed Sensor Circuit Malfunction
   * P0721 Output Speed Sensor Range/Performance
   * P0722 Output Speed Sensor No Signal
   * P0723 Output Speed Sensor Intermittent
   * P0724 Torque Converter/Brake Switch B Circuit High
   * P0725 Engine Speed input Circuit Malfunction
   * P0726 Engine Speed Input Circuit Range/Performance
   * P0727 Engine Speed Input Circuit No Signal
   * P0728 Engine Speed Input Circuit Intermittent
   * P0730 Incorrect Gear Ratio
   * P0731 Gear I Incorrect ratio
   * P0732 Gear 2 Incorrect ratio
   * P0733 Gear 3 Incorrect ratio
   * P0734 Gear 4 Incorrect ratio
   * P0735 Gear 5 Incorrect ratio
   * P0736 Reverse incorrect gear ratio
   * P0740 Torque Converter Clutch Circuit Malfunction
   * P0741 Torque Converter Clutch Circuit Performance or Stuck Off
   * P0742 Torque Converter Clutch Circuit Stock On
   * P0743 Torque Converter Clutch Circuit Electrical
   * P0744 Torque Converter Clutch Circuit Intermittent
   * P0745 Pressure Control Solenoid Malfunction
   * P0746 Pressure Control Solenoid Performance or Stuck Off
   * P0747 Pressure Control Solenoid Stuck On
   * P0748 Pressure Control Solenoid Electrical
   * P0749 Pressure Control Solenoid Intermittent
   * P0750 Shift Solenoid A Malfunction
   * P0751 Shift Solenoid A Performance or Stuck Off
   * P0752 Shift Solenoid A Stuck On
   * P0753 Shift Solenoid A Electrical
   * P0754 Shift Solenoid A Intermittent
   * P0755 Shift Solenoid B Malfunction
   * P0756 Shift Solenoid B Performance or Stock Off
   * P0757 Shift Solenoid B Stuck On
   * P0758 Shift Solenoid B Electrical
   * P0759 Shift Solenoid B Intermittent
   * P0760 Shift Solenoid C Malfunction
   * P0761 Shift Solenoid C Performance or Stuck Off
   * P0762 Shift Solenoid C Stuck On
   * P0763 Shift Solenoid C Electrical
   * P0764 Shift Solenoid C Intermittent
   * P0765 Shift Solenoid D Malfunction
   * P0766 Shift Solenoid D Performance or Stuck Off
   * P0767 Shift Solenoid D Stuck On
   * P0768 Shift Solenoid D Electrical
   * P0769 Shift Solenoid D Intermittent
   * P0770 Shift Solenoid E Malfunction
   * P0771 Shift Solenoid E Performance or Stuck Off
   * P0772 Shift Solenoid E Stuck On
   * P0773 Shift Solenoid E Electrical
   * P0774 Shift Solenoid E Intermittent
   * P0780 Shift Malfunction
   * P0781 1-2 Shift Malfunction
   * P0782 2-3 Shift Malfunction
   * P0783 3-4 Shift Malfunction
   * P0784 4-5 Shift Malfunction
   * P0785 Shift/Timing Solenoid Malfunction
   * P0786 Shift/Timing Solenoid Range/Performance
   * P0787 Shift/Timing Solenoid Low
   * P0788 Shift/Timing Solenoid High
   * P0789 Shift/Timing Solenoid Intermittent
   * P0790 Normal/Performance Switch Circuit Malfunction
   * P0801 Reverse Inhibit Control Circuit Malfunction
   * P0803 1-4 Upshift (Skip Shift) Solenoid Control Circuit Malfunction
   * P0804 1-4 Upshift (Skip Shift) Lamp Control Circuit Malfunction





Specific to Honda:
CodeDescription
P1106
Barometric Pressure Circuit Range/Performance
P1107
Barometric Pressure Circuit Low Input
P1108
Barometric Pressure Circuit High Input
P1121
Throttle Position Lower Than Expected
P1122
Throttle Position Higher Than Expected
P1128
MAP Lower Than Expected
P1129
MAP Higher Than Expected
P1149
Primary HO2S (Sensor 1) Circuit Range/Performance Problem
P1162
Primary HO2S (No. 1) Circuit Malfunction
P1163
Primary HO2S (No. 1) Circuit Slow Response
P1164
Primary HO2S (No. 1) Circuit Range/Performance
P1165
Primary HO2S (No. 1) Circuit Range/Performance
P1166
Primary HO2S (No. 1) Heater System Electrical
P1167
Primary HO2S (No. 1) Heater System
P1168
Primary HO2S (No. 1) LABEL Low Input
P1169
Primary HO2S (No. 1) LABEL High Input
P1253
VTEC System Malfunction
P1257
VTEC System Malfunction
P1258
VTEC System Malfunction
P1259
VTEC System Malfunction
P1297
Electrical Load Detector Circuit Low Input
P1298
Electrical Load Detector Circuit High Input
P1300
Multiple Cylinder Misfire Detected
P1336
CSF Sensor Intermittent Interruption
P1337
CSF Sensor No Signal
P1359
CKP/TDC Sensor Connector Disconnection
P1361
Intermittent Interruption In TDC 1 Sensor Circuit
P1362
No Signal In TDC 1 Sensor Circuit
P1366
Intermittent Interruption In TDC 2 Sensor Circuit
P1367
No Signal In TDC 2 Sensor Circuit
P1381
Cylinder Position Sensor Intermittent Interruption
P1382
Cylinder Position Sensor No Signal
P1456
EVAP Emission Control System Leak Detected (Fuel Tank System)
P1457
EVAP Emission Control System Leak Detected (Control Canister System)
P1459
EVAP Emission Purge Flow Switch Malfunction
P1486
Thermostat Range/Performance Problem
P1491
EGR Valve Lift Insufficient Detected
P1498
EGR Valve Lift Sensor High Voltage
P1508
IAC Valve Circuit Failure
P1509
IAC Valve Circuit Failure
P1519
Idle Air Control Valve Circuit Failure
P1607
ECM/PCM Internal Circuit Failure A
P1655
SEAF/SEFA/TMA/TMB Signal Line Failure
P1656
Automatic Transaxle
P1660
Automatic Transaxle FI Signal A Circuit Failure
P1676
FPTDR Signal Line Failure
P1678
FPTDR Signal Line Failure
P1681
Automatic Transaxle FI Signal A Low Input
P1682
Automatic Transaxle FI Signal A High Input
P1686
Automatic Transaxle FI Signal B Low Input
P1687
Automatic Transaxle FI Signal B High Input
P1705
Automatic Transaxle Concerns
P1706
Automatic Transaxle Concerns
P1738
Automatic Transaxle Concerns
P1739
Automatic Transaxle Concerns
P1753
Automatic Transaxle Concerns
P1758
Automatic Transaxle Concerns
P1768
Automatic Transaxle Concerns
P1773
Automatic Transaxle Concerns
P1785
Automatic Transaxle Concerns
P1786
Automatic Transaxle Concerns
P1790
Automatic Transaxle Concerns
P1791
Automatic Transaxle Concerns
P1792
Automatic Transaxle Concerns
P1793
Automatic Transaxle Concerns
P1794
Automatic Transaxle Concerns
P1870
Automatic Transaxle Concerns
P1873
Automatic Transaxle Concerns
P1879
Automatic Transaxle Concerns
P1885
Automatic Transaxle Concerns
P1886
Automatic Transaxle Concerns
P1888
Automatic Transaxle Concerns
P1890
Automatic Transaxle Concerns
P1891
Automatic Transaxle Concerns

it almost always has to do with emissions, and it could be something as simple as your gas cap is loose.  as stated above.  (thunder stealer!)

Go get the code read at a parts store, come back here and tell us what it is. We'll go from there. BTW I'm a tech at a Honda dealership, and we charge a lot just to check it because Honda charges us a couple of grand a month just to keep our "code machine thing" updated. Plus, most of us techs are flat rate, which means we get no hourly wage or salary what so ever. We only get paid by the job we do, so if I touch it, you're probably going to pay.

Never been replaced.

Now I'm dizzy. Thanks a lot!

Really? Thanks so much guys, I will have to go by after work and report back.

Simple question: Did you get gas recently? check your gas cap, remove completely then put it back on (only if you've filled up recently).

Your kidding right?

And way to quote the whole thing.  

Hmmm, have to check this, its been last week I guess.

Buy a roll of electrical tape and cut off a piece about 3/4" long.  Apply this to your dashboard over the check engine light.  Now bask in the glory of how much money you just saved.

Kidding, go to AutoZone.  It's probably not the end of the world, hell, I didn't own a vehicle that didn't have a 24/7/365 check engine light on until I was 25.  Except for the F150 with no working dash lights at all.  Always some damned sensor or another.

A buddy of mine told me the best way to fix it is to remove the bulb behind the check engine light or put electrical tape over the symbol....(although I did spend $40 on sale for a cheap reader from Harbor Freight that has more than paid for itself in getting things fixed quickly).

AFARR

****Crap, someone beat me to the punch with the post above......

No shit...

Don't feel bad reptar, All the dealers charge a steep diagnostic charge. I bought my first Snap on "brick" in 88 or 89 and I think dealers were charging 45-50 for a hook up not long after that.

Rofl...I had to do the tape trick on a car I had back in HS, my mechanic couldn't figure it out for the life of him, and his suggestion was to replace the wiring harness for several hundred dollars, or use a piece of back tape, not a tough choice. lol

Sorry dude, I'm new here. I don't know quite how things work yet!

Open hood. See if compartment is full or empty. There, you did what the light told you to do, you slavish minion to the Japanese Overlords.






When my light came on about a year ago, it was a failed Oxygen sensor that needed replacing.

Can we all stop quoting the entire post?!  

95% chance your O2 sensor needs to be replaced

Do what my buddies wife did. Electrical tape over the light and forget about it...

THIS!!!!!!!!
only worry about the check engine light if it is blinking

Gas cap loose.

I was going to say this too that's why mine is on, evap sensor code or some shit. Plus sometimes if you gas cap isn't screwed on tight it will make your check engine light come on. Did you pump gas this morning? Go to Advance Auto they will check it for free and give you the code for what is wrong.

It's the flux capacitor.

As stated, most likely gas cap or O2 sensor.

I just up-dated my own personal scanner.....just over a grand.   cars are much different than they used to be, a new car is a very sophisticated piece of equipment with as many as a dozen [or more] processors ..working on these things takes training and tools.....which translates into bucks.
that is why repairs cost so much sometimes...wanna whine about it?...take it to the .gov   all the regulations the manufacturers must meet come from ther.

not really..more than likely it would be an evap problem
then again it is a Honda.........it probably needs a transmission.

Shop owner here.  I totally agree with you.  I have been looking into the scan tool options for upgrade.  SnapOn Modis 8 grand.  That is a LOT of check engines to diag before that gets paid off.

The last time mine came on it was because of a bad gas cap

If the oil pressure and temp are good, and the car is idling and running okay dont freak out until you can get the comp checked at an auto parts store.

Screw the dealership.

I spent a rather large sum of $$$ last year to get one of the nicer scan tools. Was considering selling the thing a couple weeks ago, then a day later my check engine light came on. I've cleared it several times, so it looks like the problem isn't going away.



As much as I paid for the thing, I feel that it has already paid for itself in both repair/diagnostic money saved and stress avoided.



P0506- "IDLE AIR CONTROL SYSTEM RPM LOWER THAN EXPECTED"








Now, I just gotta figure out if the cure for the above is worse than the disease-  The common prescription for this code (after checking for vacuum leaks) is to clean the throttle body.  But doing that often will cause other problems, as the vehicles computer will see the change that cleaning brings about as yet another problem.  Thus making me have to bring the car back to a dealership in order for them to do a "computer relearn" procedure.



Sticking a piece of electrical tape over the light is looking like a decent option....

You could also just need a new IAC Motor.

Was this actually a serious thread?

well if it was a ford, its supposed to be on, at least mine always is.

Components. American components, Russian Components, ALL MADE IN TAIWAN!

EJECT!

I think this is the most common problem that turns on the light.LOL

Go to autozone and they will read it for you.

I know that up until the late 90's, you could use a paperclip and check to see why the CIL turned on.  I do not know if this will work on a later model honda.  But worth checking out.

It required shunting a connection and turning the key on and counting how many times the CIL blinked.

party pooper

Auto's haven't used OBD1 since 94-95.