Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
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HOMESERVICE MANUALSVOLVO2004S80 L6-2.9L TURBO VIN 91 B6294TREPAIR AND DIAGNOSISA L L DIAGNOSTIC TROUBLE CODES ( DTC )TESTING AND INSPECTIONMANUFACTURER CODE CHARTSTCM CODES (TRANSMISSION CONTROL MODULE)TCM-0096FAULTY SIGNAL
2004 Volvo S80 L6-2.9L Turbo VIN 91 B6294T
Faulty Signal
2004 Volvo S80 L6-2.9L Turbo VIN 91 B6294TSECTION Faulty Signal
Faulty signal
Checking the position sensor
- Ignition on
- Depress the brake pedal. Move the gear selector to "Quickshift" position
- Move the gear selector to + and check that the gear selection is updated in the display on the combined instrument panel. Move the gear selector to -. Check that the gear selection is updated.
Was the function OK?
Yes - No Fault Found
No - Checking the wiring and component
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Checking the wiring and component
Try a new gear shift selector control module.
Other information
- To access or replace the gear shift selector control module, see Printed circuit board gear selector assembly / top panel Geartronic, replacing Printed Circuit Board Gear Selector Assembly/Top Panel Geartronic, Replacing.
Continue - Verification
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Verification
Hint: After carrying out the repair, check that the fault has been remedied.
- Ignition on
- Depress the brake pedal. Move the gear selector to "Quickshift" position
- Move the gear selector to + and check that the gear selection is updated in the display on the combined instrument panel. Move the gear selector to -. Check that the gear selection is updated.
Was the function OK?
Yes - FAULT FOUND
No - Fault-tracing information
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Fault-tracing information
Information
Fault-tracing information
The fault should have been detected and remedied. As this is not the case fault-tracing has failed.
Exit fault-tracing for this diagnostic trouble code (DTC) or make another attempt.
Do you want to exit fault-tracing?
Yes - Exit Fault-Tracing
No - Attempt New Test
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Attempt New Test - Checking the position sensor
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When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- • You smell fuel, burning insulation, or see smoke.
- • Brakes feel soft, pull hard to one side, or make grinding noises.
- • The engine overheats, stalls repeatedly, or misfires under load.
- • You are missing required tools, torque specs, or safe lifting equipment.
- • You are not confident in the next step or safety outcome.