Connecting the breakout box to the transmission control module (TCM)

WARNING: This page is about a different car, the 2002 Volvo C70, 2001 Volvo C70, 2000 Volvo C70, 1999 Volvo C70, and 1998 Volvo C70. However, it is still accessible from the selected car via links, so may be relevant.

Fig 1: Identifying Transmission Control Module

Courtesy of VOLVO CARS OF NORTH AMERICA.

Ignition off.
Disconnect the automatic transmission control module (TCM)) according to. See Replacing the gearbox control module (TCM)
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 specification, Transmission control module (TCM) .
Connect adapter 9511504 to the control module connector (wiring side) and connect breakout box 9813190 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.