LEMON Manuals: Even more car manuals for everyone: 1960-2025
Home >> Volvo >> 2004 >> XC90 Base, AWD >> Repair and Diagnosis >> Transmission >> Automatic Trans >> Transmission Control Module (TCM) Diagnostic Trouble Codes - 4 Of 9 >> TCM-0094: Control Module Communication, Gear Selector Lever Signal Missing (4T65 AWD; 2003-2006) >> Signal Missing >> Checks >> Intermittent Fault
April 5, 2026: LEMON Manuals is launched! Read the announcement.

Intermittent Fault

Check ground terminal 31/6 at the A-post. Check for contact resistance and oxidation. See CONTACT RESISTANCE AND OXIDATION .

Check the communication cable between gear selector control module terminal #2 and transmission control module (TCM) terminal #B21 (#B31). Check for an open-circuit. See OPEN-CIRCUIT, INTERMITTENT FAULTS .

Check the 6-pin connector and connector 54/3RF (passenger compartment cable harness - engine compartment cable harness). Check for damage to the terminals and pins.

Check the cable between the gear selector module (GSM) terminal #6 and ground terminal 31/6. Check for an open-circuit. See OPEN-CIRCUIT, INTERMITTENT FAULTS .

Remedy as necessary.

Other information: 

Fig 1: Identifying 6--Pin Connector Terminals
GLL101501Courtesy of VOLVO CARS CORPORATION
Fig 2: Identifying Ohms Display
GLL101042Courtesy of VOLVO CARS CORPORATION