Connecting The Breakout Box To The Automatic Transmission Control Module (TCM)

Fig 1: Identifying Transmission Control Module

Courtesy of VOLVO CARS CORPORATION

• Ignition off.
• Disconnect the automatic transmission control module (TCM)) according to. See TRANSMISSION CONTROL MODULE (TCM), REPLACING .
• Check that the male and female terminals in the control module and control module connector are intact and secure and that the wiring to the female terminals is properly secured to the pins.
• Pay particular attention to the terminals related to the diagnostic trouble code (DTC)/symptom. See SIGNAL DESCRIPTION. TRANSMISSION CONTROL MODULE (TCM) .
• Connect adapter see 9511504 to the control module connector (wiring side) and connect breakout box see 9511428 to the adapter.
• The breakout box is designed to facilitate reading off the control module input and output signals when the control module is connected; and the cable and component resistance when the control module is disconnected. Using a breakout box reduces the risk of accidental short-circuits and damaged connector pins.