Engine Controls - 4.3L - Diagnostic Trouble Codes
ENGINE CONTROLS - 4.3L - DIAGNOSTIC TROUBLE CODE (DTC) LIST
| DTC | Description |
|---|---|
| DTC P0101 | MAF Sensor Frequency Signal Not Within Range |
| DTC P0102 | MAF Sensor Frequency Signal Low |
| DTC P0103 | MAF Sensor Frequency Signal High |
| DTC P0106 | MAF Sensor Signal Not Within Range |
| DTC P0107 | MAP Sensor Voltage Less Than 0.10 Volts |
| DTC P0108 | MAP Sensor Voltage More Than 4.9 Volts |
| DTC P0112 | IAT More Than 128°C (262°F) |
| DTC P0113 | IAT Less Than -39°C (-38°F) |
| DTC P0117 | ECT Sensor Temperature More Than 139°C (282°F) |
| DTC P0118 | ECT Sensor Temperature Less Than -38°C (-36°F) |
| DTC P0121 | TP Sensor Reading Greater/Less Than Predicted MAP Value |
| DTC P0122 | TP Sensor Signal Voltage Low |
| DTC P0123 | TP Sensor Signal Voltage High |
| DTC P0125 | Closed Loop Coolant Temperature Not Achieved |
| DTC P0128 | Time For Engine Coolant Temperature To Reach Preset Temp Exceeded |
| DTC P0131 or P0151 (W/L35) | HO2S Voltage Low |
| DTC P0132 or P0152 | HO2S Voltage High |
| DTC P0133 or P0153 (W/L35) | Rich-To-Lean/Lean-To-Rich Response Time Too High |
| DTC P0134 or P0154 (W/L35) | HO2S Voltage Steady Between 350-550 mV for 1 Minute |
| DTC P0135, P0141, P0155, or P0161 (W/L35) | HO2S Voltage Within 150 mV of Start-Up Voltage |
| DTC P0137 or P0157 | HO2S Voltage Low |
| DTC P0138 or P0158 | HO2S Voltage Low |
| DTC P0140 or P0160 (W/L35) | HO2S Voltage Steady Between 400-475 mV |
| DTC P0171 or P0174 | Average Long Term Fuel Trim Cell Value Above 23% |
| DTC P0172 or P0175 | Average Long Term Fuel Trim Cell Value Below 13% |
| DTC P0200 | Fuel Injector Control Circuit Incorrect Voltage |
| DTC P0230 | Commanded State Of Driver and Actual State of Control Circuit Do Not Match |
| DTC P0300 | PCM Detects A Deceleration in Crankshaft Speed Indicating Emission Type or Catalyst-Damaging Type Misfire |
| DTC P0325 | KS Diagnostic Circuitry Malfunction |
| DTC P0327 | Knock Signal is Outside Assigned Range or Not Present |
| DTC P0335 | CKP Sensor Signal is Not Detected for More Than 3 Seconds |
| DTC P0336 | CKP Sensor Signal is Out of Range for Less Than 3 Seconds |
| DTC P0341 | CMP Sensor Reference Pulse is Not Detected Once Every 2 Crankshaft Revolutions |
| DTC P0351 | Ignition Control Voltage is Not Within Specified Range 0.04-4.9 Volts |
| DTC P0401 | EGR Flow Test Low Value |
| DTC P0404 | Difference Between EGR Position and Sensor Greater Than 10% |
| DTC P0405 | Ignition Voltage Greater Than 11.7 Volts |
| DTC P0410 | AIR Pump Turns ON During Closed Loop Operation |
| DTC P0418 | Commanded State of the Driver and Actual State of Control Circuit Do Not Match |
| DTC P0420 or P0430 | Oxygen Storage Capability of Catalytic Converter Below Calibrated Threshold |
| DTC P0440 | EVAP System Not Able to Achieve Vacuum During Diagnostic Test |
| DTC P0442 | EVAP System Vacuum Decays Too Fast |
| DTC P0443 | Commanded State Of Driver And Control Circuit State Do Not Match |
| DTC P0446 | EVAP Vacuum Decay Rate Greater Than Predetermined Value |
| DTC P0449 | Commanded State Of Driver And Control Circuit State Do Not Match |
| DTC P0452 | Fuel Tank Pressure Sensor Low Voltage |
| DTC P0453 | Fuel Tank Pressure Sensor High Voltage |
| DTC P0506 | Actual Engine Speed is 50 RPM Less Than Desired Engine Speed |
| DTC P0507 | Actual Engine Speed is 50 RPM Greater Than Desired Engine Speed |
| DTC P0601, P0602, P0603, P0604, P0605, P0606, P0607, P1600, P1621, P1627, P1680, P1681, P1683, or P2610 | PCM is Unable to Correctly Read Data From Flash Memory |
| DTC P0650 | Commanded State of Driver and Actual State of Control Circuit Do Not Match |
| DTC P1111 | Intake Air Temperature is Less Than -39°C (-38°F) |
| DTC P1112 | Intake Air Temperature is More Than 139°C (282°F) |
| DTC P1114 | Intermittent High ECT Sensor Temperature |
| DTC P1115 | Intermittent Low ECT Sensor Temperature |
| DTC P1121 | TP Sensor Intermittently Indicates a Throttle Position Signal of More Than 4.9 Volts |
| DTC P1122 | TP Sensor Intermittently Indicates a Throttle Position Signal of Less Than 0.15 Volts |
| DTC P1133 or P1153 (W/L35) | HO2S Lean to Rich and Rich to Lean Switches are Less than Calibrated Value |
| DTC P1134 or P1154 (W/L35) | HO2S Transition Time Ratio is Not Within Calibrated Range |
| DTC P1336 | PCM Has Not Learned Crankshaft Poition System Variation |
| DTC P1345 | CAM Sensor Pulse Not Detected at Correct Relative Position to the Crankshaft Position Sensor Pulse |
| DTC P1380 | ABS Malfunction |
| DTC P1381 | Serial Data Malfunction |
| DTC P1404 | EGR Position Sensor High Voltage |
| DTC P1415 or P1416 | HO2S Voltage High |
| DTC P1441 | EVAP System Develops Vacuum When Purge is Not Commanded |
| DTC P1635 | PCM Detects Voltage Out Of Tolerance Condition on 5-Volt Reference 1 Circuit |
| DTC P1639 | PCM Detects Voltage Out Of Tolerance Condition on 5-Volt Reference 2 Circuit |