Checking component and wiring

Check the cable between engine control module (ECM) #B45 (#B55) and central electronic module #14B (#A34) for an intermittent short-circuit to ground according to Short-circuit to ground, intermittent faults and for an intermittent open-circuit according to Open-circuit, intermittent faults .

Other information

Connecting the breakout box/accessing the control module, see Connecting the breakout box .
To connect the central electronic module breakout box, see Connecting the breakout box .
For information about signals on 5-cyl, see Signal description .
For information about signals on 6-cyl, see Signal specification .

Fig 1: Identifying Ohmmeter

Courtesy of VOLVO CARS OF NORTH AMERICA.

Fig 2: Identifying Frequency Controlled Mechanical Relay

Courtesy of VOLVO CARS OF NORTH AMERICA.