Intermittent fault

Check power supply cable between control module #A57 and vehicle speed sensor (VSS) 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 signal cable between control module #A39 and vehicle speed sensor (VSS) 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 breakout box, Transmission control module (TCM) .
• To disconnect control module, see Replacing the gearbox control module (TCM) .
• For information about signals, see Signal specification, 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