Checking The Wiring

Fig 1: Identifying Ignition OFF

Courtesy of VOLVO CARS CORPORATION

There is either a fault in the supply voltage or in the ground lead. Check the power supply cable against a ground terminal (the chassis).

HINT: If the voltage is 12 V the fault is in the ground lead. Other wise the fault is in the power supply cable.

Remedy as necessary.

Other information:

To access or replace the control module, see UPPER ELECTRONIC MODULE (UEM)/REARVIEW MIRROR, REPLACING
see RAIN SENSOR
For further information about signals and other values, see SIGNAL DESCRIPTION, UPPER ELECTRONIC MODULE (UEM)
To connect the breakout box, see CONNECTING THE BREAKOUT BOX
To fault-trace the wiring and terminals, see CHECKING WIRING AND TERMINALS .

Fig 2: Identifying 10 Pin Connector Terminals

Courtesy of VOLVO CARS CORPORATION

Fig 3: Identifying Connector Terminals

Courtesy of VOLVO CARS CORPORATION