Checking connectors and wiring

Check the oil level sensor connector. Check for loose connections, contact resistance and oxidation.

Check the signal cable between engine control module (ECM) terminal #A40 and oil level sensor terminal #1. Check for an open-circuit.

Check the cable between engine control module (ECM) terminal #A39 and oil level sensor terminal #3. Check for an open-circuit.

Check the cable between engine control module (ECM) terminal #A60 and oil level sensor terminal #2. Check for an open-circuit.

HINT: With the ignition on, the voltage between terminals #2 and #3 must be 5 V, with the reading taken at the oil level sensor connector. 

Try a new oil level sensor if no fault is found and the fault is permanent.

Remedy as necessary.

Other information: 

• See Contents
• To connect the breakout box, see Connecting the breakout box
• For information about signals, see Signal specification
• To access or replace the oil level sensor see Oil level sensor, replacing .

Fig 1: Identifying Ohmmeter

Courtesy of VOLVO CARS OF NORTH AMERICA.

Fig 2: Identifying Oil Level Sensor

Courtesy of VOLVO CARS OF NORTH AMERICA.

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  Refer to Verification