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Diagnostic Trouble Code Definitions

See DIAGNOSTIC TROUBLE CODE IDENTIFICATION  table, then go to appropriate diagnostic procedure under DIAGNOSTIC TESTS  .

DIAGNOSTIC TROUBLE CODE IDENTIFICATION

DTC Description
P0102  Mass Airflow (MAF) Circuit Input Low
P0103  Mass Airflow (MAF) Circuit Input High
P0112  Intake Air Temperature (IAT) Circuit Input Low
P0113  Intake Air Temperature (IAT) Circuit Input High
P0116  Engine Coolant Temperature (ECT) Sensor Circuit Range
P0117  Engine Coolant Temperature (ECT) Sensor Circuit Input Low
P0118  Engine Coolant Temperature (ECT) Sensor Circuit Input High
P0121  Difference In Load Signal Between MAF Sensor & TP Sensor
P0122  Throttle Position (TP) Sensor Circuit Input Low
P0123  Throttle Position (TP) Sensor Circuit Input High
P0130  Front HO2S Circuit Malfunction
P0131  Front HO2S Circuit Voltage Low
P0132  Front HO2S Circuit Voltage High
P0133  Front HO2S Circuit Slow Response
P0134  Front HO2S Circuit No Activity Detected
P0135  Front HO2S Heater Circuit Malfunction
P0136  Rear HO2S Circuit Malfunction
P0137  Rear HO2S Circuit Voltage Low
P0138  Rear HO2S Circuit Voltage High
P0141  Rear HO2S Heater Circuit Malfunction
P0201  Fuel Injector No. 1 Circuit Malfunction
P0202  Fuel Injector No. 2 Circuit Malfunction
P0203  Fuel Injector No. 3 Circuit Malfunction
P0204  Fuel Injector No. 4 Circuit Malfunction
P0300 (1) Random Misfire Detected
P0301 (1) Cylinder No. 1 Misfire Detected
P0302 (1) Cylinder No. 2 Misfire Detected
P0303 (1) Cylinder No. 3 Misfire Detected
P0304 (1) Cylinder No. 4 Misfire Detected
P0326 (2) Knock Sensor Circuit Range
P0335  Crankshaft Position (CKP) Sensor Circuit Malfunction
P0336  Crankshaft Position (CKP) Sensor Circuit Range
P0342  Camshaft Position (CMP) Sensor Circuit Input Low
P0343  Camshaft Position (CMP) Sensor Circuit Input High
P0354 (3) Crankshaft Position Sensor Plausibility Check
P0422  Catalytic Converter Efficiency Below Threshold
P0441  EVAP System Incorrect Purge Flow
P0442  EVAP System Small Leak Detected
P0443  Canister Purge Control Valve Circuit Malfunction
P0444  Canister Purge Control Valve Circuit Open
P0445  Canister Purge Control Valve Circuit Shorted
P0446  EVAP System Vent Control Malfunction
P0447  EVAP System Vent Control Circuit Short To Ground
P0448  EVAP System Vent Control Circuit Short To Power
P0451  Fuel Tank Pressure Sensor Range/Performance
P0452  Fuel Tank Pressure Sensor Signal Low
P0453  Fuel Tank Pressure Sensor Signal High
P0455  EVAP System Large Leak
P0501  Vehicle Speed Sensor (VSS) Circuit Malfunction
P0506  Idle RPM Lower Than Expected
P0507  Idle RPM Higher Than Expected
P0562 (3) System Voltage Low
P0563 (3) System Voltage High
P0606 (3) Internal Control Module ROM Error
P1123  Long-Term Fuel Trim Additive Air Too Rich
P1124  Long-Term Fuel Trim Additive Air Too Lean
P1127  Long-Term Fuel Trim Multiplicative Too Rich
P1128  Long-Term Fuel Trim Multiplicative Too Lean
P1510  Idle Speed Control (ISC) Actuator Opening Circuit Shorted
P1513  Idle Speed Control (ISC) Actuator Opening Circuit Open
P1552  Idle Speed Control (ISC) Actuator Closing Circuit Shorted
P1553  Idle Speed Control (ISC) Closing Circuit Open
P1586 (3) Rough Road Sensor Circuit Malfunction (M/T-A/T Encoding)
P1605  Rough Road Sensor Circuit Malfunction
P1606  Rough Road Sensor Circuit Not Rational
P1611  MIL Request Signal Circuit Input Low
P1613  MIL Request Signal Circuit Input High
P1665 (3) Power Stage Group "A" Malfunction
P1670 (3) Power Stage Group "B" Malfunction
(1) MIL will continuously blink when misfire is severe enough to cause catalytic converter damage.
(2) Malfunction will set DTC, but not illuminate MIL.
(3) Test procedure not available from manufacturer.