Checking wiring and sensors

Check the Transmission control module (TCM) and the speed sensor's connectors for contact resistance and oxidation.Checking wiring and terminals. Permanent fault

Check the power supply cable between transmission control module (TCM) terminal A59 and transmission connector terminal 16 for an open-circuit according to Open-circuit, permanent faults .

Check the signal cable between transmission control module (TCM) terminal A41 and transmission connector terminal 17 for an open-circuit according to Open-circuit, permanent faults .

HINT: With the transmission control module connected, the ignition on and a voltmeter connected between transmission connector terminals 16 and 17 (control module side), the voltage should be approximately 1 V below Ubat. 

Remedy as necessary.

Other information: 

• To connect the breakout box, see Connecting breakout box, Transmission control module (TCM) .
• To disconnect the transmission control module (TCM), see Replacing the gearbox control module (TCM) .
• To disconnect transmission connector, see Inspecting/cable harness to solenoids .
• For information about signals, see Signal specification, Transmission control module (TCM) .

Fig 2: Breakout Box

Courtesy of VOLVO CARS OF NORTH AMERICA.

Fig 3: Identifying Ohmmeter

Courtesy of VOLVO CARS OF NORTH AMERICA.

Fig 4: Identifying Transmission Connector Terminal 16 & 17

Courtesy of VOLVO CARS OF NORTH AMERICA.

Refer to Verification