Checking the wiring

Check the cable between combined instrument panel connector terminal #B4 and radio connector terminal #B7. Check for a short-circuit to ground according to Short-circuit to ground, permanent faults .

Other information: 

• For information about signals, see Signal specification
• To connect the breakout box, see Connecting the breakout box .

Fig 1: Identifying Terminals

Courtesy of VOLVO CARS OF NORTH AMERICA.

Fig 2: Identifying Ohm Meter

Courtesy of VOLVO CARS OF NORTH AMERICA.

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  Refer to Verification