Checking wiring

Check the signal cable between engine control module (ECM) terminal #10 and system relay terminal #2. Check for an intermittent short-circuit to ground Short-circuit to ground, intermittent faults . Check for an open-circuit according to Open-circuit, intermittent faults . Remedy if necessary.

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

Other information 

• To connect the breakout box, see Connecting the breakout box. EMS 2000 .

Fig 1: Identifying System Relay Control Connector Terminals

Courtesy of VOLVO CARS OF NORTH AMERICA.

Fig 2: Identifying Ohmmeter

Courtesy of VOLVO CARS OF NORTH AMERICA.

Fig 3: Identifying EMS2000

Courtesy of VOLVO CARS OF NORTH AMERICA.

• Continue 

  Refer to Information