Checking components and wiring

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.

Check that the resistance in the system relay between terminals 1 and 2 is approximately 75 Ω at +20 °C.

Check the signal cable between engine control module (ECM) terminal 10 and system relay (2/14) base terminal 1 for an intermittent short-circuit to supply voltage and remedy according to Short-circuit to supply voltage, intermittent faults .

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 System Relay Base Terminals

Courtesy of VOLVO CARS OF NORTH AMERICA.

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