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Engine Controls - Self-Diagnostics Expand All (for easy ctrl-f) Collapse All Introduction Self-Diagnostic System Powertrain Control Module Location Summary Connector Identification Diagnostic Tests Notes DTC P0010 & P0020 DTC P0011, DTC P0012, DTC P0021 & DTC P0022 DTC P0016: Crankshaft Position - Camshaft Position Correlation (Bank 1, Sensor A) & DTC P0018: Crankshaft Position - Camshaft Position Correlation (Bank 2, Sensor A) DTC P0036: Oxygen Sensor Heater Control Circuit (Bank 1, Sensor 2) DTC P0100: Mass Airflow (MAF) Sensor Circuit DTC P0101: Mass Airflow (MAF) Sensor Circuit Range/Performance Fault DTC P0110: Intake Air Temperature (IAT) Sensor Circuit DTC P0115: Engine Coolant Temperature (ECT) Sensor Circuit DTC P0116: Engine Coolant Temperature (ECT) Sensor Circuit Range/Performance Fault & DTC P0125: Insufficient Coolant Temperature For Closed Loop Fuel Control DTC P0120: Throttle (TP)/Pedal Position Sensor Switch "A" Circuit Malfunction DTC P0121: Throttle (TP)/Pedal Position Sensor Switch "A" Circuit Range/Performance Fault DTC P0128: Thermostat Fault DTC P0134: Oxygen (A/F) Sensor Circuit No Activity Detected (Bank 1, Sensor 1) & DTC P0154: Oxygen (A/F) Sensor Circuit No Activity Detected (Bank 2, Sensor 1) DTC P0135: Oxygen (A/F) Sensor Heater Circuit (Bank 1 Sensor 1) & DTC P0155: Oxygen (A/F) Sensor Heater Circuit (Bank 2 Sensor 1) DTC P0136: Heated Oxygen Sensor Circuit Fault (Bank 1 Sensor 2) DTC P0171, DTC P0172, DTC P0174, DTC P0175 DTC P0300, P0301, P0302, P0303, P0304, P0305 & P0306 DTC P0325 & DTC P0330 DTC P0335: Crankshaft Position (CKP) Sensor "A" Circuit & DTC P0339: Crankshaft Position Sensor Circuit Intermittent DTC P0340, DTC P0341, DTC P0345 & DTC P0346 DTC P0351, DTC P0352, DTC P0353, DTC P0354, DTC P0355 & DTC P0356 DTC P0420: Catalyst System Efficiency Below Threshold DTC P0441: Incorrect EVAP Purge Flow Or DTC P0446: EVAP Vent Control Fault DTC P0442: Evaporative Emission Control System Leak Detected (Small Leak) & DTC P0456: Evaporative Emission Control System Leak Detected (Very Small Leak) DTC P0451: EVAP Pressure Sensor Range/Performance Fault DTC P0500: Vehicle Speed Sensor (VSS) Malfunction DTC P0505: Idle Control System Malfunction & DTC P0511: Idle Air Control Circuit DTC P0560: System Voltage DTC P0724: Brake Switch "B" Circuit High DTC P2195, DTC P2196, DTC P2197, DTC P2198, DTC P2237 & DTC P2240 DTC P2A00: A/F Sensor Circuit Slow Response (Bank 1 Sensor 1) & DTC P2A03: A/F Sensor Circuit Slow Response (Bank 2 Sensor 1)