Intermittent fault

Check the power supply cable between control module #A57 (#A57) and speed sensor connector #1 for an intermittent open-circuit according to Open-circuit, intermittent faults and an intermittent short-circuit to ground according to Short-circuit to ground, intermittent faults .

Check the signal cable between control module #A39 (#A39) and speed sensor connector #2 for an intermittent open-circuit according to Open-circuit, intermittent faults and an intermittent short-circuit to ground according to Short-circuit to ground, intermittent faults .

Remedy as necessary.

Other information: 

• To connect the breakout box, see Connecting the breakout box .
• To disconnect the control module, see Replacing the gearbox control module (TCM) .
• For information about signals, see Signal description. Transmission control module (TCM) .

Fig 2: Identifying Vehicle Speed Sensor

Courtesy of VOLVO CARS OF NORTH AMERICA.

Fig 3: Ohmmeter

Courtesy of VOLVO CARS OF NORTH AMERICA.

Refer to Information