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Engine Control System Self Diagnostics Expand All (for easy ctrl-f) Collapse All Introduction Self-Diagnostic System Programming Scan Tool Problems Summary Diagnostic Trouble Code Definitions Diagnostic Tests Notes DTC P0010: Camshaft Position "A" Actuator Circuit (Bank 1) DTC P0011: Camshaft Position "A" Timing Over Advanced Or System Performance (Bank 1) Or P0012: Camshaft Position "A" Timing Over Retarded (Bank 1) DTC P0016: Crankshaft Position - Camshaft Position Correlation (Bank 1 Sensor "A") DTC P0031, DTC P0032, DTC P0037, DTC P0038, DTC P0051 Or DTC P0052 DTC P0100: Mass Airflow Meter Circuit DTC P0101: Mass Airflow Meter Circuit Range/Performance DTC P0110: Intake Air Temperature Sensor Circuit DTC P0115: Engine Coolant Temperature Sensor Circuit DTC P0116: Engine Coolant Temperature Sensor Circuit Range/Performance Or DTC P0125: Insufficient Coolant Temperature For Closed Loop Fuel Control DTC P0120: Throttle/Pedal Position Sensor/Switch "A" Circuit (M/T) DTC P0120: Throttle/Pedal Position Sensor/Switch "A" Circuit (Sequential M/T) DTC P0121: Throttle/Pedal Position Sensor/Switch "A"Circuit Range/Performance Problem DTC P0128: Coolant Thermostat Malfunction DTC P0130: Oxygen Sensor Circuit (Bank 1 Sensor 1) Or DTC P0150: Oxygen Sensor Circuit (Bank 2 Sensor 1) DTC P0133: Oxygen Sensor Circuit Slow Response (Bank 1 Sensor 1) Or DTC P0153: Oxygen Sensor Circuit Slow Response (Bank 2 Sensor 1) DTC P0134: Heated Oxygen Sensor Circuit No Activity Detected (Bank 1 Sensor 1) Or DTC P0154: Heated Oxygen Sensor Circuit No Activity Detected (Bank 2 Sensor 1) DTC P0136: Heated Oxygen Sensor Circuit (Bank 1 Sensor 2) DTC P0171, DTC P0172, DTC P0174 Or DTC P0175 DTC P0300, DTC P0301, DTC P0302, DTC P0303 Or DTC P0304 DTC P0325: Knock Sensor Circuit DTC P0335: Crankshaft Position Sensor "A" Circuit Or DTC P0339: Crankshaft Position Sensor "A" Circuit Intermittent DTC P0340: Camshaft Position Sensor "A" Circuit (Bank 1) Or P0341: Camshaft Position Sensor "A" Circuit Range/Performance (Bank 1) DTC P0351, DTC P0352, DTC P0353 &/Or DTC P0354 DTC P0420: Catalyst System Efficiency Below Threshold DTC P0441: EVAP Emission Control System Incorrect EVAP Purge Flow & DTC P0446: EVAP Emission Control System Vent Control Circuit DTC P0442: EVAP Emission Control System Leak Detected (Small Leak) & DTC P0456: EVAP Emission Control System Leak Detected (Very Small Leak) DTC P0450: EVAP Emission Control System Pressure Sensor Malfunction &/Or P0451: EVAP Emission Control System Pressure Sensor Range/Performance DTC P0500: Vehicle Speed Sensor "A" Circuit Or P0503: Vehicle Speed Sensor "A" Intermittent/Erratic/High DTC P0504: Brake Switch "A"/"B" Correlation, P0571: Brake Switch "A" Circuit Or P0724: Brake Switch "B" Circuit High DTC P0505: Idle Air Control System & DTC P0511: Idle Air Control Circuit DTC P0505: Idle Air Control System (Sequential M/T) DTC P0560: System Voltage DTC P0604, DTC P0606, DTC P0607 Or DTC P0657 DTC P0617: Starter Relay Circuit High DTC P1126: Magnetic Clutch Circuit DTC P1645: Multiplex Communication Malfunction DTC P1646: Transmission Control Ecu Malfunction DTC P2102: Throttle Actuator Control Motor Circuit Low Or DTC P2103: Throttle Actuator Control Motor Circuit High DTC P2111: Throttle Actuator Control System - Stuck Open DTC P2118: Throttle Actuator Control Motor Current Range/Performance DTC P2119: Throttle Actuator Control Throttle Body Range/Performance DTC P2120: Throttle/Pedal Position Sensor/Switch "D" Circuit DTC P2121: Accelerator Pedal Position Sensor Range/Performance DTC U0001: Gear Shift Module Communication Circuit