Checking the fuse, wiring and sensors

Fig 1: Disconnecting Connector

Courtesy of VOLVO CARS OF NORTH AMERICA.

Check that the fuse for the stop lamp circuit is intact. If the fuse is blown, first check the circuit for the stop lamp switch before replacing the fuse. Check for a short-circuit to supply.

If the fuse is intact, check the circuit for the stop lamp switch. Check for an open-circuit and a short-circuit to ground.

Remedy as necessary.

Other information 

• To connect the breakout box to the brake control module (BCM), see Connecting the Breakout Box
• To connect the breakout box to the Engine control module (ECM), see Connecting the breakout box
• See Connecting breakout box for Central Electronic Module (CEM). Refer to Connecting the breakout box
• To replace the stop lamp switch, see Stop lamp switch, replacing
• Checking wiring and terminals

Fig 2: Breakout Box

Courtesy of VOLVO CARS OF NORTH AMERICA.

Was a fault detected? 

• YES 

  Refer to Verification 

• NO 

  FAULT NOT FOUND:  Troubleshooting has been completed.