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Home >> Volvo >> 2003 >> C70 2.3 53, Automatic >> Repair and Diagnosis >> External Pages >> Different car >> Section 65 (Transmission - General Diagnostics And Tests (Coupe)) >> Checking The Control Unit Power Supply And Ground Connection (Aw50-42; 1999-2000) >> Checking power supply and ground terminals. Permanent fault >> Connecting breakout box, transmission control module (TCM) >> Connecting the breakout box

Connecting the breakout box

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.
CAUTION:

The voltage supply to the control module must be disconnected when disconnecting the breakout box. Failure to observe this procedure could seriously damage the control module.

Fig 1: Identifying Ignition OFF
GLL101045Courtesy of VOLVO CARS OF NORTH AMERICA.
Fig 2: Disconnecting Connector
GLL101003Courtesy of VOLVO CARS OF NORTH AMERICA.