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 5 cylinder turbocharged engines -2004, see SIGNAL DESCRIPTION
For 5 cylinder turbocharged engines 2005-, see SIGNAL SPECIFICATION .
For 6 cylinder engines -2004, see SIGNAL SPECIFICATION
For 6 cylinder engines 2005-, see SIGNAL SPECIFICATION .

Fig 1: Identifying Ohm Meter

Courtesy of VOLVO CARS CORPORATION

Fig 2: Identifying Frequency Controlled Mechanical Relay

Courtesy of VOLVO CARS CORPORATION