Checking The Wire And Handbrake Contact

Check and measure handbrake switch function.

HINT: Handbrake pin 1 is only grounded when handbrake is on (lamp on). 

Check and measure wire between combined instrument 6 and handbrake contact 1 for a short circuit to ground as described in Short-circuit to ground, permanent faults .

Additional information: 

• To connect the test box, see Connecting the Driver Information Module (DIM) test box .

Fig 1: Identifying Ohmmeter

Courtesy of VOLVO CARS OF NORTH AMERICA.