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.
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HOMESERVICE MANUALSVOLVO2001S40 L4-1.9L TURBO VIN 29 B4204T3REPAIR AND DIAGNOSISTRANSMISSION AND DRIVETRAINAUTOMATIC TRANSMISSION/TRANSAXLESPECIFICATIONSELECTRICAL SPECIFICATIONSTRANSMISSION CONTROL MODULE (TCM) CONNECTOR
2001 Volvo S40 L4-1.9L Turbo VIN 29 B4204T3
Transmission Control Module (TCM) Connector
2001 Volvo S40 L4-1.9L Turbo VIN 29 B4204T3SECTION Transmission Control Module (TCM) Connector
Transmission control module (TCM) connector
General
There are six unique connectors in the transmission control system, one for the transmission control module (TCM) and five located on a bracket. This bracket is mounted on the transmission on the left of the engine compartment.
Otherwise, the transmission control system wiring is routed along other cable harnesses in the car.
The illustration shows the terminals on the cable harness connector that are connected to the transmission control module (TCM).
General
There are six unique connectors in the transmission control system, one for the transmission control module (TCM) and five located on a bracket. This bracket is mounted on the transmission on the left of the engine compartment.
Otherwise, the transmission control system wiring is routed along other cable harnesses in the car.
The illustration shows the terminals on the cable harness connector that are connected to the transmission control module (TCM).
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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.