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Home >> Volvo >> 2003 >> XC90 Base, AWD >> Repair and Diagnosis (Single Page) >> Electrical >> Body Electrical >> Central Electronic Module (CEM) - Diagnostic Trouble Codes - 2 Of 7 >> CEM-1A61: Communication With The Transmission Control Module (TCM). Signal Missing (4T65 AWD; Aw50/51 AWD; Aw55-50/51SN; 2003-2004) >> Signal Missing >> Connecting Breakout Box, Transmission Control Module (TCM) >> Connecting The Breakout Box
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Connecting The Breakout Box

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 CORPORATION
Fig 2: Disconnecting Connector
GLL101003Courtesy of VOLVO CARS CORPORATION