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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-0090: Shift Lock Solenoid. Signal Too High (4T65EV; 1999-2005) >> Signal too high >> Checks >> Checking the wiring and component

Checking the wiring and component

Check the cable between the gear selector module (GSM) and the solenoid connectors. Check for a short-circuit to supply voltage. See Short-circuit to supply voltage. Permanent faults .

HINT: With a voltmeter connected to solenoid connector terminals #1 and #2 (gear selector control module side), the voltage should be 0 V when the brake pedal is not depressed and approximately Ubat when it is depressed. Replace the solenoid if the voltage is OK 

Remedy as necessary.

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