Intermittent fault

HINT: Check the communication cable between gear selector control module terminal #2 and transmission control module (TCM) terminal #B31 (#B21). Check for an intermittent open-circuit. See  Open-circuit, intermittent faults  . Check for contact resistance and oxidation. See  Contact resistance and oxidation  . 

Remedy as necessary.

Other information: 

• To connect the breakout box, see Connecting the breakout box
• For information about signals, see Signal description. Transmission control module (TCM) .

Fig 1: Identifying Breakout Box

Courtesy of VOLVO CARS OF NORTH AMERICA.

Fig 2: Identifying Volts Display

Courtesy of VOLVO CARS OF NORTH AMERICA.

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