Engine Controls - Tests W/Codes

• Introduction
• Self-Diagnostic System
  • Hard Failures
  • Intermittent Failures
  • Retrieving DTC(S)
  • Clearing DTC(S)
  • ECM Location
  • Engine Diagnostic Trouble Code (DTC) Definition
• Circuit Tests
  • Notes
  • DTC P0100 (QA) - Mass Airflow (MAF) Sensor Circuit Malfunction
  • DTC P0101 (QA_R) - Mass Airflow (MAF) Sensor Circuit Range/Performance Problem
    • Condition
    • Diagnosis & Repair Procedure
  • DTC P0105 (P_S) - Pressure Sensor Circuit Malfunction
  • DTC P0106 (P_R) - Pressure Sensor Circuit Range/PERFORMANCEPROBLEM
  • DTC P0115 (TW) - Engine Coolant Temperature (ECT) Sensor Circuit Malfunction
  • DTC P0120 (THV) - Throttle Position (TP) Sensor Circuit Malfunction
  • DTC P0121 (Th_R) - Throttle Position (TP) Sensor Circuit Range/Performance Problem
  • DTC P0125 (TW_Cl) - Insufficient Engine Coolant Temp. For Closed Loop Fuel Control
  • DTC P0130 (FO2_V) - Front O2S Circuit Malfunction
  • DTC P0133 (FO2_R) - Front O2S Circuit Slow Response
  • DTC P0135 (FO2H) - Front O2S Heater Circuit Malfunction
  • DTC P0136 (RO2_V) - Rear O2S Circuit Malfunction
  • DTC P0139 (RO2_R) - Rear O2S Circuit Slow Response
  • DTC P0141 (RO2_H) - Rear O2S Heater Circuit Malfunction
  • DTC P0170 (Fuel) - Fuel Trim Malfunction
  • DTC P0180 (TNKT) - Fuel Temperature Sensor "A" Circuit Malfunction
  • DTC P0181 (TNKT-F) - Fuel Temperature Sensor "A" Circuit Range/Performance
  • DTC P0201 (INJ1), P0202 (INJ2), P0203 (INJ3), P0204 (INJ4) Fuel Injector Circuit Malfunction
  • DTC P0301 (Mis_1), P0302 (Mis_2), P0303 (Mis_3), P0304 (Mis_4) - Cylinder (1, 2, 3 Or 4) Misfire Detected
    • Notes
    • Symptom Check Steps "a" - Only One Cylinder
    • "b" - Group Of Cylinders No. 1 & 2
    • "c" - Group Of Cylinders No. 3 & 4
    • "d" - Group Of Cylinders No. 1 & 3
    • "e" - Group Of Cylinders No. 2 & 4
    • "f" - Cylinder At Random
  • DTC P0325 (Knock) - Knock Sensor (KS) Circuit Malfunction
  • DTC P0335 (Crank) - Crankshaft Position (CKP) Sensor Circuit Malfunction
  • DTC P0340 (Cam) - Camshaft Position (CMP) Sensor Circuit Malfunction
  • DTC P0400 (EGR) - EGR Flow Malfunction
    • Notes
    • Confirmation Of Actual Driving Pattern
  • DTC P0403 (ERGSOL) EGR Circuit Malfunction
  • DTC P0410 (ASV) - Secondary Air Injection System Malfunction
  • DTC P0412 (ASVSOL) - Secondary Air Injection System Switching Valve "A" Circuit
  • DTC P0420 (Cat) - Catalyst System Efficiency Below Threshold
  • DTC P0440 (EVAP) - EVAP Emission Control System
  • DTC P0441 (CPC_F) - EVAP Emission Control System Incorrect Purge Flow
  • DTC P0443 (CPC) - EVAP Emission Control System Purge Control Valve Circuit Malfunction
  • DTC P0446 (VCMSOL) - EVAP Emission Control System Vent Control
  • DTC P0450 (TNKP) - EVAP Emission Control System Pressure Sensor
  • DTC P0451 (TNKP_F) - EVAP Emission Control System Sensor Range/Performance
  • DTC P0500 (VSP) - Vehicle Speed Sensor (VSS) Malfunction
  • DTC P0505 (ISC) - Idle Control System Malfunction
  • DTC P0506 (ISC_L) - Idle Control System Rpm Lower Than Expected
  • DTC P0507 (ISC_H) - Idle Control System Rpm Higher Than Expected
  • DTC P0600 - Serial Communication Link Malfunction
  • DTC P0601 (Ram) - Internal Control Module Memory Check Sum Error
  • DTC P1100 (St_SW) - Starter Switch Circuit Malfunction
  • DTC P1101 (N/P_SW) - Neutral Position Switch Circuit Malfunction (A/T)
  • DTC P1101 (N/P_SW) - Neutral Position Switch Circuit Malfunction (M/T)
  • DTC P1107 (BR2) - Air Injection System Diagnosis Solenoid Valve Circuit Malfunction (A/T)
  • DTC P1400 (PCVSOL) - Fuel Tank Pressure Control Solenoid Valve Circuit Malfunction
  • DTC P1401 (PCV_F) - Fuel Tank Pressure Control System Function Problem
  • DTC P1402 (FLVL) - Fuel Level Sensor Circuit Malfunction
  • DTC P1500 (Fan_1) - Cooling Fan No. 1 Circuit Malfunction
  • DTC P1502 (Fan_F) - Cooling Fan Function Problem
  • DTC P1700 (ATTH) - TP Sensor Circuit Malfunction (A/T)
• Summary