Checking the wiring and component

WARNING: This page is about a different car, the 2004 Volvo S40, 2003 Volvo S40, 2002 Volvo S40, 2001 Volvo S40, and 2000 Volvo S40. However, it is still accessible from the selected car via links, so may be relevant.

Fig 1: Identifying Ignition OFF

Courtesy of VOLVO CARS OF NORTH AMERICA.

Ignition off.
Check at the battery that the battery voltage is not too low.

Check the system relay and system relay base. Check for contact resistance and oxidation according to Contact resistance and oxidation .

Check fuse 12 the integrated relay / fusebox in the engine compartment. Check for contact resistance and oxidation according to Contact resistance and oxidation .

Check the cable between system relay base terminal #3 and fuse 12 in the integrated relay / fusebox in the engine compartment. Check for an intermittent open-circuit according to Open-circuit, intermittent faults .

Check the cable from system relay base terminal #5. Check for an intermittent short-circuit to ground according to Short-circuit to ground, intermittent faults . Check for an intermittent open-circuit according to Open-circuit, intermittent faults .

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.

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