Checking supply

Check passenger compartment fuse 4 (11C/4:2).

Check the cable between the power seat module (PSM) connector #A1 and passenger compartment fuse 4 (11C/4:2). Check for an open-circuit. See Open-circuit, permanent faults

If the fuse has blown, fault-trace for a short-circuit to ground. See Short-circuit to ground, permanent faults .

Check connector (54/24:1)

Check passenger compartment fuse 24 (11C/24:2)

Check the cable between power seat module (PSM) supply relay (2/29) #3 and passenger compartment fuse 24 (11C/24:2). Check for a short-circuit to ground. See Short-circuit to ground, permanent faults . Check for an open-circuit. See Open-circuit, permanent faults .

Check that the relay is not defective.

Check the cable between the power seat module (PSM) connector terminal #B1 and power seat supply relay (2/29) #1. Check for a short-circuit to ground. See Short-circuit to ground, permanent faults . Check for an open-circuit. See Open-circuit, permanent faults .

Remedy as necessary.

Other information

To connect the breakout box, see Connecting the breakout box, power seat module (PSM)
For information about signals, see Signal specification, Power seat module .

Fig 1: Identifying Breakout Box

Courtesy of VOLVO CARS OF NORTH AMERICA.

Fig 2: Identifying Ohmmeter

Courtesy of VOLVO CARS OF NORTH AMERICA.

Fig 3: Identifying Fuse Holder In Passenger Compartment/Cargo Compartment

Courtesy of VOLVO CARS OF NORTH AMERICA.

Were any faults found?

YES
OKAY: Troubleshooting has been completed.
NO
Refer to Replace / program component