Checking the signal cable

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.

Fig 2: Disconnecting Connector

Courtesy of VOLVO CARS OF NORTH AMERICA.

Ignition off
Disconnect the combined instrument panel connector
Ignition on.
Connect a voltmeter between the combined instrument panel connector terminal #B23 (control module side) and ground.

Fig 3: Identifying Voltage Display
Courtesy of VOLVO CARS OF NORTH AMERICA.

The voltmeter should read 5 V.

OK
Refer to Checking the malfunction indicator lamp (MIL)
NOT OK
Refer to Checking the signal cable

Check the cable between engine control module (ECM) terminal #34 and the combined instrument panel connector terminal #B23. Check for a short-circuit to supply voltage according to Short-circuit to supply voltage. Permanent faults .

Remedy as necessary.

Fig 1: Identifying Voltage Display

Courtesy of VOLVO CARS OF NORTH AMERICA.

Continue
Refer to Verification