Checking the wiring

Fig 1: Identifying Ignition OFF

Courtesy of VOLVO CARS OF NORTH AMERICA.

Fig 2: Identifying Connector(s) Disconnected

Courtesy of VOLVO CARS OF NORTH AMERICA.

• Ignition off
• Breakout box connected.
• Disconnect gearbox connector D.

  Check the cable between transmission control module (TCM) terminal #A52 (#A52) and transmission connector terminal #D3 (control module side). Check for a short-circuit to supply voltage. Check the cable for short-circuits to other cables in the circuit.

  Check the cable between control module terminal #B10 (#A70) and transmission connector terminal #D4 (control module side). Check for a short-circuit to supply voltage. Check the cable for short-circuits to other cables in the circuit.

  Check the cables between connector terminals #D3 and #D4 on the transmission side. Check for damage. Check for short-circuits to other cables in the circuit.

  Check the connector. Check for damage and pressed in pins.

  Remedy as necessary.

  Other information: 

  • See Connecting the breakout box
  • See Signal description. Transmission control module (TCM)
  • See Connectors, transmission, disconnecting / connecting
  • See Short-circuit to supply voltage. Permanent faults
  Fig 3: Identifying Transmission Connector Terminals

  Courtesy of VOLVO CARS OF NORTH AMERICA.

Was a fault detected? 

• YES 

  Refer to Verification 

• NO 

  Refer to Checking the wiring and component