Checking the connectors

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: Engine Start Verification

Courtesy of VOLVO CARS OF NORTH AMERICA.

Fig 2: Connecting Connector

Courtesy of VOLVO CARS OF NORTH AMERICA.

Check the engine speed (RPM) sensor and engine control module (ECM) connectors for contact resistance and oxidation according to Contact resistance and oxidation . Remedy if necessary.

Check in particular for damage or loose terminal pins.

Reconnect the connectors.

Start the engine. Allow the engine to run at idle speed for 30 seconds.

Ignition off for 30 seconds.

NOTE: If the engine cooling fan (FC) is running, the ignition must be off for 30 seconds after the engine cooling fan (FC) has stopped.

Start the engine. Allow the engine to run at idle speed for 30 seconds.

Read off the status of the diagnostic trouble code (DTC).

Fig 3: Identifying VCT2000 Diagnostic Tool Symbol In VIDA

Courtesy of VOLVO CARS OF NORTH AMERICA.

Is the status intermittent?

YES
Refer to Verification
NO
Refer to Checking the wiring and components