Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
2003 Volvo V40FACTORY OEM SERVICE PROCEDURE
Engine Control Module (ECM) Diagnostic Trouble Codes - 3 Of 3
- ECM-7F: Malfunction Indicator Lamp. Signal Too Low. Permanent Fault (B4204T3 (Ca) (Us); 2001-2003)
- ECM-7F: Malfunction Indicator Lamp. Signal Too Low. Permanent Fault (B4204T4; 2003-2004)
- ECM-82: Air Conditioning (A/C) Condenser Fan. Signal Too High. Intermittent Fault (B4204T2 CVVT; 2000)
- ECM-82: Air Conditioning (A/C) Condenser Fan. Signal Too High. Permanent Fault (B4204T2 CVVT; 2000)
- ECM-82: Air Conditioning (A/C) Condenser Fan. Signal Too Low. Intermittent Fault (B4204T2 CVVT; 2000)
- ECM-82: Air Conditioning (A/C) Condenser Fan. Signal Too Low. Permanent Fault (B4204T2 CVVT; 2000)
- ECM-82: Air Conditioning (A/C) Condenser Fan. Signal Too High. Intermittent Fault (B4204T3 (Ca) (Us); 2001-2003)
- ECM-82: Air Conditioning (A/C) Condenser Fan. Signal Too High. Intermittent Fault (B4204T4; 2003-2004)
- ECM-82: Air Conditioning (A/C) Condenser Fan. Signal Too High. Permanent Fault (B4204T3 (Ca) (Us); 2001-2003)
- ECM-82: Air Conditioning (A/C) Condenser Fan. Signal Too High. Permanent Fault (B4204T4; 2003-2004)
- ECM-82: Air Conditioning (A/C) Condenser Fan. Signal Too Low. Intermittent Fault (B4204T3 (Ca) (Us); 2001-2003)
- ECM-82: Air Conditioning (A/C) Condenser Fan. Signal Too Low. Intermittent Fault (B4204T4; 2003-2004)
- ECM-82: Air Conditioning (A/C) Condenser Fan. Signal Too Low. Permanent Fault (B4204T3 (Ca) (Us); 2001-2003)
- ECM-82: Air Conditioning (A/C) Condenser Fan. Signal Too Low. Permanent Fault (B4204T4; 2003-2004)
- ECM-85: Engine Cooling Fan (FC) Low-Speed. Signal Too High. Intermittent Fault (B4204T2 CVVT; 2000)
- ECM-85: Engine Cooling Fan (FC) Low-Speed. Signal Too High. Intermittent Fault (B4204T3 (Ca) (Us); 2001-2003)
- ECM-85: Engine Cooling Fan (FC) Low-Speed. Signal Too High. Intermittent Fault (B4204T4; 2003-2004)
- ECM-85: Engine Cooling Fan (FC) Low-Speed. Signal Too High. Permanent Fault (B4204T2 CVVT; 2000)
- ECM-85: Engine Cooling Fan (FC) Low-Speed. Signal Too High. Permanent Fault (B4204T3 (Ca) (Us); 2001-2003)
- ECM-85: Engine Cooling Fan (FC) Low-Speed. Signal Too High. Permanent Fault (B4204T4; 2003-2004)
- ECM-85: Engine Cooling Fan (FC) Low-Speed. Signal Too Low. Intermittent Fault (B4204T2 CVVT; 2000)
- ECM-85: Engine Cooling Fan (FC) Low-Speed. Signal Too Low. Intermittent Fault (B4204T3 (Ca) (Us); 2001-2003)
- ECM-85: Engine Cooling Fan (FC) Low-Speed. Signal Too Low. Intermittent Fault (B4204T4; 2003-2004)
- ECM-85: Engine Cooling Fan (FC) Low-Speed. Signal Too Low. Permanent Fault (B4204T2 CVVT; 2000)
- ECM-85: Engine Cooling Fan (FC) Low-Speed. Signal Too Low. Permanent Fault (B4204T3 (Ca) (Us); 2001-2003)
- ECM-85: Engine Cooling Fan (FC) Low-Speed. Signal Too Low. Permanent Fault (B4204T4; 2003-2004)
- ECM-87: Engine Cooling Fan (FC) High-Speed. Signal Too High. Intermittent Fault (B4204T2 CVVT; 2000)
- ECM-87: Engine Cooling Fan (FC) High-Speed. Signal Too High. Intermittent Fault (B4204T3 (Ca) (Us); 2001-2003)
- ECM-87: Engine Cooling Fan (FC) High-Speed. Signal Too High. Intermittent Fault (B4204T4; 2003-2004)
- ECM-87: Engine Cooling Fan (FC) High-Speed. Signal Too High. Permanent Fault (B4204T2 CVVT; 2000)
- ECM-87: Engine Cooling Fan (FC) High-Speed. Signal Too High. Permanent Fault (B4204T3 (Ca) (Us); 2001-2003)
- ECM-87: Engine Cooling Fan (FC) High-Speed. Signal Too High. Permanent Fault (B4204T4; 2003-2004)
- ECM-87: Engine Cooling Fan (FC) High-Speed. Signal Too Low. Intermittent Fault (B4204T2 CVVT; 2000)
- ECM-87: Engine Cooling Fan (FC) High-Speed. Signal Too Low. Intermittent Fault (B4204T3 (Ca) (Us); 2001-2003)
- ECM-87: Engine Cooling Fan (FC) High-Speed. Signal Too Low. Intermittent Fault (B4204T4; 2003-2004)
- ECM-87: Engine Cooling Fan (FC) High-Speed. Signal Too Low. Permanent Fault (B4204T2 CVVT; 2000)
- ECM-87: Engine Cooling Fan (FC) High-Speed. Signal Too Low. Permanent Fault (B4204T3 (Ca) (Us); 2001-2003)
- ECM-87: Engine Cooling Fan (FC) High-Speed. Signal Too Low. Permanent Fault (B4204T4; 2003-2004)
- ECM-8A: Idle Air Control (IAC) Valve. Signal Missing. Intermittent Fault (B4204T2 CVVT; 2000)
- ECM-8A: Idle Air Control (IAC) Valve. Signal Missing. Intermittent Fault (B4204T3 (Ca) (Us); 2001-2003)
- ECM-8A: Idle Air Control (IAC) Valve. Signal Missing. Intermittent Fault (B4204T4; 2003-2004)
- ECM-8A: Idle Air Control (IAC) Valve. Signal Missing. Permanent Fault (B4204T2 CVVT; 2000)
- ECM-8A: Idle Air Control (IAC) Valve. Signal Missing. Permanent Fault (B4204T3 (Ca) (Us); 2001-2003)
- ECM-8A: Idle Air Control (IAC) Valve. Signal Missing. Permanent Fault (B4204T4; 2003-2004)
- ECM-8A: Idle Air Control (IAC) Valve. Signal Too High. Intermittent Fault (B4204T2 CVVT; 2000)
- ECM-8A: Idle Air Control (IAC) Valve. Signal Too High. Intermittent Fault (B4204T3 (Ca) (Us); 2001-2003)
- ECM-8A: Idle Air Control (IAC) Valve. Signal Too High. Intermittent Fault (B4204T4; 2003-2004)
- ECM-8A: Idle Air Control (IAC) Valve. Signal Too High. Permanent Fault (B4204T2 CVVT; 2000)
- ECM-8A: Idle Air Control (IAC) Valve. Signal Too High. Permanent Fault (B4204T3 (Ca) (Us); 2001-2003)
- ECM-8A: Idle Air Control (IAC) Valve. Signal Too High. Permanent Fault (B4204T4; 2003-2004)
- ECM-8A: Idle Air Control (IAC) Valve. Signal Too Low. Intermittent Fault (B4204T2 CVVT; 2000)
- ECM-8A: Idle Air Control (IAC) Valve. Signal Too Low. Intermittent Fault (B4204T3 (Ca) (Us); 2001-2003)
- ECM-8A: Idle Air Control (IAC) Valve. Signal Too Low. Intermittent Fault (B4204T4; 2003-2004)
- ECM-8A: Idle Air Control (IAC) Valve. Signal Too Low. Permanent Fault (B4204T2 CVVT; 2000)
- ECM-8A: Idle Air Control (IAC) Valve. Signal Too Low. Permanent Fault (B4204T3 (Ca) (Us); 2001-2003)
- ECM-8A: Idle Air Control (IAC) Valve. Signal Too Low. Permanent Fault (B4204T4; 2003-2004)
- ECM-8D: Idling Speed. Signal Too High. Intermittent Fault (B4204T2 CVVT; 2000)
- ECM-8D: Idling Speed. Signal Too High. Intermittent Fault (B4204T3 (Ca) (Us); 2001-2003)
- ECM-8D: Idling Speed. Signal Too High. Intermittent Fault (B4204T4; 2003-2004)
- ECM-8D: Idling Speed. Signal Too High. Permanent Fault (B4204T2 CVVT; 2000)
- ECM-8D: Idling Speed. Signal Too High. Permanent Fault (B4204T3 (Ca) (Us); 2001-2003)
- ECM-8D: Idling Speed. Signal Too High. Permanent Fault (B4204T4; 2003-2004)
- ECM-8D: Idling Speed. Signal Too Low. Intermittent Fault (B4204T2 CVVT; 2000)
- ECM-8D: Idling Speed. Signal Too Low. Intermittent Fault (B4204T3 (Ca) (Us); 2001-2003)
- ECM-8D: Idling Speed. Signal Too Low. Intermittent Fault (B4204T4; 2003-2004)
- ECM-8D: Idling Speed. Signal Too Low. Permanent Fault (B4204T2 CVVT; 2000)
- ECM-8D: Idling Speed. Signal Too Low. Permanent Fault (B4204T3 (Ca) (Us); 2001-2003)
- ECM-8D: Idling Speed. Signal Too Low. Permanent Fault (B4204T4; 2003-2004)
- ECM-91: Torque Reduction. Diagnostic Trouble Code (DTC) In The DSA. Intermittent Fault (B4204T2 CVVT; 2000)
- ECM-91: Torque Reduction. Diagnostic Trouble Code (DTC) In The DSA. Intermittent Fault (B4204T3 (Ca) (Us); 2001-2003)
- ECM-91: Torque Reduction. Diagnostic Trouble Code (DTC) In The DSA. Intermittent Fault (B4204T4; 2003-2004)
- ECM-91: Torque Reduction. Diagnostic Trouble Code (DTC) In The DSA. Permanent Fault (B4204T2 CVVT; 2000)
- ECM-91: Torque Reduction. Diagnostic Trouble Code (DTC) In The DSA. Permanent Fault (B4204T3 (Ca) (Us); 2001-2003)
- ECM-91: Torque Reduction. Diagnostic Trouble Code (DTC) In The DSA. Permanent Fault (B4204T4; 2003-2004)
- ECM-91: Torque Reduction. Faulty Signal. Intermittent Fault (B4204T2 CVVT; 2000)
- ECM-91: Torque Reduction. Faulty Signal. Intermittent Fault (B4204T3 (Ca) (Us); 2001-2003)
- ECM-91: Torque Reduction. Faulty Signal. Intermittent Fault (B4204T4; 2003-2004)
- ECM-91: Torque Reduction. Faulty Signal. Permanent Fault (B4204T2 CVVT; 2000)
- ECM-91: Torque Reduction. Faulty Signal. Permanent Fault (B4204T3 (Ca) (Us); 2001-2003)
- ECM-91: Torque Reduction. Faulty Signal. Permanent Fault (B4204T4; 2003-2004)
- ECM-91: Torque Reduction. Initialization Fault. Intermittent Fault (B4204T2 CVVT; 2000)
- ECM-91: Torque Reduction. Initialization Fault. Intermittent Fault (B4204T3 (Ca) (Us); 2001-2003)
- ECM-91: Torque Reduction. Initialization Fault. Intermittent Fault (B4204T4; 2003-2004)
- ECM-91: Torque Reduction. Initialization Fault. Permanent Fault (B4204T2 CVVT; 2000)
- Diagnostic trouble code (DTC) information
- Initiation fault. Permanent fault
- ECM-91: Torque Reduction. Initialization Fault. Permanent Fault (B4204T3 (Ca) (Us); 2001-2003)
- ECM-91: Torque Reduction. Initialization Fault. Permanent Fault (B4204T4; 2003-2004)
- ECM-91: Torque Reduction. Signal Missing. Intermittent Fault (B4204T2 CVVT; 2000)
- ECM-91: Torque Reduction. Signal Missing. Intermittent Fault (B4204T3 (Ca) (Us); 2001-2003)
- ECM-91: Torque Reduction. Signal Missing. Intermittent Fault (B4204T4; 2003-2004)
- ECM-91: Torque Reduction. Signal Missing. Permanent Fault (B4204T2 CVVT; 2000)
- ECM-91: Torque Reduction. Signal Missing. Permanent Fault (B4204T3 (Ca) (Us); 2001-2003)
- ECM-91: Torque Reduction. Signal Missing. Permanent Fault (B4204T4; 2003-2004)
- ECM-9A: Communication Problems, Immobilizer. No Communication (B4204T2 CVVT; 2000)
- ECM-9A: Communication Problems, Immobilizer. No Communication (B4204T3 (Ca) (Us); 2001-2003)
- ECM-9A: Communication Problems, Immobilizer. No Communication (B4204T4; 2003-2004)
- ECM-9B: Communication Problems, Immobilizer. Faulty VIN (B4204T2 CVVT; 2000)
- ECM-9B: Communication Problems, Immobilizer. Faulty VIN (B4204T3 (Ca) (Us); 2001-2003)
- ECM-9B: Communication Problems, Immobilizer. Faulty VIN (B4204T4; 2003-2004)
- ECM-9D: Control Module. Internal Fault. Intermittent Fault (B4204T2 CVVT; 2000)
- ECM-9D: Control Module. Internal Fault. Intermittent Fault (B4204T3 (Ca) (Us); 2001-2003)
- ECM-9D: Control Module. Internal Fault. Intermittent Fault (B4204T4; 2003-2004)
- ECM-9D: Control Module. Internal Fault. Permanent Fault (B4204T2 CVVT; 2000)
- ECM-9D: Control Module. Internal Fault. Permanent Fault (B4204T3 (Ca) (Us); 2001-2003)
- ECM-9D: Control Module. Internal Fault. Permanent Fault (B4204T4; 2003-2004)
- ECM-A0: Engine Coolant Temperature (ECT) Sensor. Faulty Signal. Intermittent Fault (B4204T2 CVVT; 2000)
- ECM-A0: Engine Coolant Temperature (ECT) Sensor. Faulty Signal. Intermittent Fault (B4204T3 (Ca) (Us); 2001-2003)
- ECM-A0: Engine Coolant Temperature (ECT) Sensor. Faulty Signal. Intermittent Fault (B4204T4; 2003-2004)
- ECM-A0: Engine Coolant Temperature (ECT) Sensor. Faulty Signal. Permanent Fault (B4204T2 CVVT; 2000)
- ECM-A0: Engine Coolant Temperature (ECT) Sensor. Faulty Signal. Permanent Fault (B4204T3 (Ca) (Us); 2001-2003)
- ECM-A0: Engine Coolant Temperature (ECT) Sensor. Faulty Signal. Permanent Fault (B4204T4; 2003-2004)
- ECM-A1: Engine Coolant Temperature (ECT) Sensor. Faulty Signal. Intermittent Fault (B4204T2 CVVT; 2000)
- ECM-A1: Engine Coolant Temperature (ECT) Sensor. Faulty Signal. Intermittent Fault (B4204T3 (Ca) (Us); 2001-2003)
- ECM-A1: Engine Coolant Temperature (ECT) Sensor. Faulty Signal. Intermittent Fault (B4204T4; 2003-2004)
- ECM-A1: Engine Coolant Temperature (ECT) Sensor. Faulty Signal. Permanent Fault (B4204T2 CVVT; 2000)
- ECM-A1: Engine Coolant Temperature (ECT) Sensor. Faulty Signal. Permanent Fault (B4204T3 (Ca) (Us); 2001-2003)
- ECM-A1: Engine Coolant Temperature (ECT) Sensor. Faulty Signal. Permanent Fault (B4204T4; 2003-2004)
- ECM-A2: Engine Coolant Temperature (ECT) Sensor. Faulty Signal. Intermittent Fault (B4204T2 CVVT; 2000)
- ECM-A2: Engine Coolant Temperature (ECT) Sensor. Faulty Signal. Intermittent Fault (B4204T3 (Ca) (Us); 2001-2003)
- ECM-A2: Engine Coolant Temperature (ECT) Sensor. Faulty Signal. Intermittent Fault (B4204T4; 2003-2004)
- ECM-A2: Engine Coolant Temperature (ECT) Sensor. Faulty Signal. Permanent Fault (B4204T2 CVVT; 2000)
- ECM-A2: Engine Coolant Temperature (ECT) Sensor. Faulty Signal. Permanent Fault (B4204T3 (Ca) (Us); 2001-2003)
- ECM-A2: Engine Coolant Temperature (ECT) Sensor. Faulty Signal. Permanent Fault (B4204T4; 2003-2004)
- ECM-A3: System Relay Output Signal Too High. Intermittent Fault (B4204T2 CVVT; 2000)
- ECM-A3: System Relay Output Signal Too High. Intermittent Fault (B4204T3 (Ca) (Us); 2001-2003)
- ECM-A3: System Relay Output Signal Too High. Intermittent Fault (B4204T4; 2003-2004)
- ECM-A3: System Relay Output Signal Too High. Permanent Fault (B4204T2 CVVT; 2000)
- ECM-A3: System Relay Output Signal Too High. Permanent Fault (B4204T3 (Ca) (Us); 2001-2003)
- ECM-A3: System Relay Output Signal Too High. Permanent Fault (B4204T4; 2003-2004)
- ECM-A3: System Relay Output Signal Too Low. Intermittent Fault (B4204T2 CVVT; 2000)
- ECM-A3: System Relay Output Signal Too Low. Intermittent Fault (B4204T3 (Ca) (Us); 2001-2003)
- ECM-A3: System Relay Output Signal Too Low. Intermittent Fault (B4204T4; 2003-2004)
- ECM-A3: System Relay Output Signal Too Low. Permanent Fault (B4204T2 CVVT; 2000)
- ECM-A3: System Relay Output Signal Too Low. Permanent Fault (B4204T3 (Ca) (Us); 2001-2003)
- ECM-A3: System Relay Output Signal Too Low. Permanent Fault (B4204T4; 2003-2004)
- ECM-Ac: Boost Pressure Sensor. Signal Too High. Intermittent Fault (B4204T3 (Ca) (Us); 2001-2003)
- ECM-Ac: Boost Pressure Sensor. Signal Too High. Intermittent Fault (B4204T4; 2003-2004)
- ECM-Ac: Boost Pressure Sensor. Signal Too High. Permanent Fault (B4204T3 (Ca) (Us); 2001-2003)
- ECM-Ac: Boost Pressure Sensor. Signal Too High. Permanent Fault (B4204T4; 2003-2004)
- ECM-Ac: Boost Pressure Sensor. Signal Too Low. Intermittent Fault (B4204T3 (Ca) (Us); 2001-2003)
- ECM-Ac: Boost Pressure Sensor. Signal Too Low. Intermittent Fault (B4204T4; 2003-2004)
- ECM-Ac: Boost Pressure Sensor. Signal Too Low. Permanent Fault (B4204T3 (Ca) (Us); 2001-2003)
- ECM-Ac: Boost Pressure Sensor. Signal Too Low. Permanent Fault (B4204T4; 2003-2004)
- ECM-Ad: Boost Pressure Sensor. Signal Too High. Intermittent Fault (B4204T3 (Ca) (Us); 2001-2003)
- ECM-Ad: Boost Pressure Sensor. Signal Too High. Intermittent Fault (B4204T4; 2003-2004)
- ECM-Ad: Boost Pressure Sensor. Signal Too High. Permanent Fault (B4204T3 (Ca) (Us); 2001-2003)
- ECM-Ad: Boost Pressure Sensor. Signal Too High. Permanent Fault (B4204T4; 2003-2004)
- ECM-Ad: Boost Pressure Sensor. Signal Too Low. Intermittent Fault (B4204T3 (Ca) (Us); 2001-2003)
- ECM-Ad: Boost Pressure Sensor. Signal Too Low. Intermittent Fault (B4204T4; 2003-2004)
- ECM-Ad: Boost Pressure Sensor. Signal Too Low. Permanent Fault (B4204T3 (Ca) (Us); 2001-2003)
- ECM-Ad: Boost Pressure Sensor. Signal Too Low. Permanent Fault (B4204T4; 2003-2004)
- ECM-AF: Leak Diagnostic Pump. Signal Missing. Intermittent Fault (B4204T2 CVVT; 2000)
- ECM-AF: Leak Diagnostic Pump. Signal Missing. Intermittent Fault (B4204T3 (Ca) (Us); 2001-2003)
- ECM-AF: Leak Diagnostic Pump. Signal Missing. Intermittent Fault (B4204T4; 2003-2004)
- ECM-AF: Leak Diagnostic Pump. Signal Missing. Permanent Fault (B4204T2 CVVT; 2000)
- ECM-AF: Leak Diagnostic Pump. Signal Missing. Permanent Fault (B4204T3 (Ca) (Us); 2001-2003)
- ECM-AF: Leak Diagnostic Pump. Signal Missing. Permanent Fault (B4204T4; 2003-2004)
- ECM-AF: Leak Diagnostic Pump. Signal Too High. Intermittent Fault (B4204T2 CVVT; 2000)
- ECM-AF: Leak Diagnostic Pump. Signal Too High. Intermittent Fault (B4204T3 (Ca) (Us); 2001-2003)
- ECM-AF: Leak Diagnostic Pump. Signal Too High. Intermittent Fault (B4204T4; 2003-2004)
- ECM-AF: Leak Diagnostic Pump. Signal Too High. Permanent Fault (B4204T2 CVVT; 2000)
- ECM-AF: Leak Diagnostic Pump. Signal Too High. Permanent Fault (B4204T3 (Ca) (Us); 2001-2003)
- ECM-AF: Leak Diagnostic Pump. Signal Too High. Permanent Fault (B4204T4; 2003-2004)
- ECM-AF: Leak Diagnostic Pump. Signal Too Low. Intermittent Fault (B4204T2 CVVT; 2000)
- ECM-AF: Leak Diagnostic Pump. Signal Too Low. Intermittent Fault (B4204T3 (Ca) (Us); 2001-2003)
- ECM-AF: Leak Diagnostic Pump. Signal Too Low. Intermittent Fault (B4204T4; 2003-2004)
- ECM-AF: Leak Diagnostic Pump. Signal Too Low. Permanent Fault (B4204T2 CVVT; 2000)
- ECM-AF: Leak Diagnostic Pump. Signal Too Low. Permanent Fault (B4204T3 (Ca) (Us); 2001-2003)
- ECM-AF: Leak Diagnostic Pump. Signal Too Low. Permanent Fault (B4204T4; 2003-2004)
- ECM-Dc: Communication, Transmission Control Module (TCM). Faulty Signal. Intermittent Fault (B4204T2 CVVT; 2000)
- ECM-Dc: Communication, Transmission Control Module (TCM). Faulty Signal. Intermittent Fault (B4204T3 (Ca) (Us); 2001-2003)
- ECM-Dc: Communication, Transmission Control Module (TCM). Faulty Signal. Intermittent Fault (B4204T4; 2003-2004)
- ECM-Dc: Communication, Transmission Control Module (TCM). Faulty Signal. Permanent Fault (B4204T2 CVVT; 2000)
- ECM-Dc: Communication, Transmission Control Module (TCM). Faulty Signal. Permanent Fault (B4204T3 (Ca) (Us); 2001-2003)
- ECM-Dc: Communication, Transmission Control Module (TCM). Faulty Signal. Permanent Fault (B4204T4; 2003-2004)
- ECM-Dd: Communication, Transmission Control Module (TCM). Faulty Signal. Intermittent Fault (B4204T2 CVVT; 2000)
- ECM-Dd: Communication, Transmission Control Module (TCM). Faulty Signal. Intermittent Fault (B4204T3 (Ca) (Us); 2001-2003)
- ECM-Dd: Communication, Transmission Control Module (TCM). Faulty Signal. Intermittent Fault (B4204T4; 2003-2004)
- ECM-Dd: Communication, Transmission Control Module (TCM). Faulty Signal. Permanent Fault (B4204T2 CVVT; 2000)
- ECM-Dd: Communication, Transmission Control Module (TCM). Faulty Signal. Permanent Fault (B4204T3 (Ca) (Us); 2001-2003)
- ECM-Dd: Communication, Transmission Control Module (TCM). Faulty Signal. Permanent Fault (B4204T4; 2003-2004)
- ECM-De: Communication, Transmission Control Module (TCM). Faulty Signal. Intermittent Fault (B4204T2 CVVT; 2000)
- ECM-De: Communication, Transmission Control Module (TCM). Faulty Signal. Intermittent Fault (B4204T3 (Ca) (Us); 2001-2003)
- ECM-De: Communication, Transmission Control Module (TCM). Faulty Signal. Intermittent Fault (B4204T4; 2003-2004)
- ECM-De: Communication, Transmission Control Module (TCM). Faulty Signal. Permanent Fault (B4204T2 CVVT; 2000)
- ECM-De: Communication, Transmission Control Module (TCM). Faulty Signal. Permanent Fault (B4204T3 (Ca) (Us); 2001-2003)
- ECM-De: Communication, Transmission Control Module (TCM). Faulty Signal. Permanent Fault (B4204T4; 2003-2004)
- ECM-E0: Communication, Transmission Control Module (TCM). Faulty Signal. Intermittent Fault (B4204T2 CVVT; 2000)
- ECM-E0: Communication, Transmission Control Module (TCM). Faulty Signal. Intermittent Fault (B4204T3 (Ca) (Us); 2001-2003)
- ECM-E0: Communication, Transmission Control Module (TCM). Faulty Signal. Intermittent Fault (B4204T4; 2003-2004)
- ECM-E0: Communication, Transmission Control Module (TCM). Faulty Signal. Permanent Fault (B4204T2 CVVT; 2000)
- ECM-E0: Communication, Transmission Control Module (TCM). Faulty Signal. Permanent Fault (B4204T3 (Ca) (Us); 2001-2003)
- ECM-E0: Communication, Transmission Control Module (TCM). Faulty Signal. Permanent Fault (B4204T4; 2003-2004)
Factory Service Tools
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When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- • You smell fuel, burning insulation, or see smoke.
- • Brakes feel soft, pull hard to one side, or make grinding noises.
- • The engine overheats, stalls repeatedly, or misfires under load.
- • You are missing required tools, torque specs, or safe lifting equipment.
- • You are not confident in the next step or safety outcome.
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