Checking the Cables From the Fusebox To the Central Electronic Module (CEM)

Remove windshield wiper relay 2/91 from the fusebox base.

Check the relay base terminals. Check for contact resistance and oxidation.

Check the cable between relay base 2/91 terminal #2 and central electronic module (CEM) terminal #13. Check for an open-circuit.

Install the relay.

Activate the relay.

Other information: 

• To connect the breakout box, see Connecting the Breakout Box
• For information about signals, see Signal Specification
• See Checking Wiring And Terminals .

Fig 1: Identifying Ohmmeter

Courtesy of VOLVO CARS OF NORTH AMERICA.

Fig 2: Identifying Connectors

Courtesy of VOLVO CARS OF NORTH AMERICA.

Was the function OK? 

• YES 

  Refer to Verification 

• NO 

  Refer to Checking the Cable For A Short-Circuit To Ground