Checking the wiring and component

Check the voltage between ground and system relay base terminal #5. The voltage must be approximately 0 V when the system relay is disconnected.

If the voltage is above approximately 0 volts, check the cable at system relay base terminal #5. Check for a short-circuit to supply voltage according to Short-circuit to supply voltage. Permanent faults .

Try a new system relay if no fault is found during the above fault-tracing.

Remedy as necessary.

Other information 

• To connect the breakout box and access the control module, see Connecting the breakout box. EMS 2000
• To access or replace the system relay, see Engine compartment
• For information about signals see Signal specification .

Fig 2: Identifying Ohmmeter

Courtesy of VOLVO CARS OF NORTH AMERICA.

Fig 3: Identifying System Relay Base Connector Terminals

Courtesy of VOLVO CARS OF NORTH AMERICA.

Refer to Verification