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Home >> Volvo >> 2004 >> S80 Base, 2.5 59, FWD >> Repair and Diagnosis >> Transmission >> Automatic Trans >> Transmission Control Module (TCM) Diagnostic Trouble Codes - 4 Of 5 >> TCM-0091: Shift Lock Solenoid. Signal Missing (Aw50/51 AWD; Aw55-50/51SN; 2004-2006) >> Signal missing >> Checks >> Intermittent fault

Intermittent fault

Check the control module for the gear selector and the solenoid connectors. Check for intermittent contact resistance according to Loose connections (terminals) .

Check the cable between the control module for the gear selector and the shift lock solenoid. Check for an intermittent open-circuit according to Open-circuit, intermittent faults .

Remedy as necessary.

Other information: 

Fig 1: Identifying Ohm Meter
GLL101042Courtesy of VOLVO CARS OF NORTH AMERICA.