Checking the Wiring

Fig 1: Identifying Ignition OFF

GLL101045

Courtesy of VOLVO CARS OF NORTH AMERICA.

Fig 2: Disconnecting Connector

GLL101003

Courtesy of VOLVO CARS OF NORTH AMERICA.

Ignition off
Disconnect central electronic module (CEM) connector D.
Check the signal cable. Check for a short-circuit to ground. Take readings between central electronic module (CEM) terminal #D29 (#29) and twilight sensor terminal #4.

Try a new twilight sensor if no fault was found.

Remedy as necessary.

Other information
- See Connecting the Breakout Box
- See Signal Specification
- See Location Of Components
- See Sun Sensor/Alarm LED, Replacing
- See Contents

Continue
Refer to Verification