Checking the wiring

• Breakout box connected to the control module
• Breakout box connected to the transmission connector.

  Check the cable between control module terminal #37 (#A37) and transmission connector (control module side) terminal #L (terminal #A11). Check for a short-circuit to ground. See Short-circuit to ground, permanent faults .

  Check the cable between control module terminal #55 (#A55) and transmission connector (control module side) terminal #M (#A12). Check for a short-circuit to ground. See Short-circuit to ground, permanent faults .

  Remedy as necessary.

  Other information: 

  • To connect the breakout box, see Connecting the breakout box
  • To connect the breakout box to the transmission connector, see Connecting the breakout box, GM automatic transmissions
  • For information about signals, see Signal specification .
  Fig 1: Identifying Breakout Box

  Courtesy of VOLVO CARS OF NORTH AMERICA.
  Fig 2: Identifying Ohms Display

  Courtesy of VOLVO CARS OF NORTH AMERICA.

Was a fault detected? 

• YES 

  Refer to Verification 

• NO 

  Refer to Checking the wiring and component