Checking cable

Check the power seat module (PSM) and motor connector for contact resistance and oxidation according to Contact resistance and oxidation and loose connections according to Loose connections (terminals) .

The Hall sensor is integrated in the motor.

Check the wiring between the power seat module (PSM) and the sensor according to the table below for an intermittent open-circuit according to Open-circuit, intermittent faults , an intermittent short-circuit to ground according to Short-circuit to ground, intermittent faults and an intermittent short-circuit to supply voltage according to Short-circuit to supply voltage, intermittent faults .

Other information: 

• To connect the breakout box, see Connecting the breakout box, power seat module (PSM) .
• For information on signals, refer to Output signals to the motors .

Fig 1: Identifying Black 8-Pin Connector And Terminals

Courtesy of VOLVO CARS OF NORTH AMERICA.

Fig 2: Identifying Ohmmeter

Courtesy of VOLVO CARS OF NORTH AMERICA.

Fig 3: Identifying Audio Control Module (AUM) / External Amplifier To Loudspeakers And Gray Connector

Courtesy of VOLVO CARS OF NORTH AMERICA.