Checking components and wiring

Check the engine control module (ECM) and accelerator pedal (AP) position sensor connectors. Check for contact resistance, play and oxidation.

Check the signal cable from accelerator pedal (AP) position sensor terminal #2 to engine control module (ECM) terminal #B25 (#B35).

Remedy as necessary.

Other information:

To connect the breakout box, see Connecting the breakout box
For information about signals, see Signal specification
To access and replace the accelerator pedal (AP) position sensor, see Accelerator pedal (AP), replacing
To fault-trace the wiring and terminals, see Contents .

Fig 1: Identifying 6-Bit Connector

Courtesy of VOLVO CARS OF NORTH AMERICA.