Fault-Tracing Information

Fault-tracing

Checking communication with the gear selector module (GSM)




- Ignition on.
- Read off the position of the gear selector.
- Depress the brake pedal. Move the gear selector to the position for manual shifting and check that the status changes.
- Then move the gearshift selector toward both + and -, and check that the value has been updated in the driver information module's display window.
If the value is updated in the driver information module display, the fault is intermittent. That is to say, it occurred earlier but is not active right now.









Continue - Checking the components and wiring

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Verification





Verification

Hint: After carrying out the repair, check that the fault has been remedied.








- Ignition off.
- Reinstall the connectors, components etc.
- Ignition on.
- Read off the position of the gear selector.
- Depress the brake pedal. Move the gear selector to the position for manual shifting and check that the status changes.
- Then move the gearshift selector toward both + and -, and check that the value has been updated in the driver information module's display window.









Does the value change?

Yes - VERIFIED

No - VERIFICATION FAILED

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VERIFICATION FAILED - Fault-tracing information

VERIFIED - FAULT FOUND

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Fault-tracing information

Attempt New Test - Checking communication with the gear selector module (GSM)

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Checking the components and wiring




- Ignition off.
Check connector (16 pin) for the transmission control module (TCM) and gear selector module (GSM). Check for contact resistance and oxidation.
Check the communication cable (LIN) for open circuit.
Take readings between:
- Transmission control module (TCM) terminal #A7 and gear selector module (GSM) terminal #2.
Check for open circuit.
Take readings between:
- Transmission control module (TCM) terminal #A16 and gear selector module (GSM) terminal #1.

Hint: The gear selector module (GSM) is supplied power from the transmission control module (TCM).

Check the ground lead. Check for an open-circuit.
Take readings between:
- Gear selector module (GSM) terminal #6 and the ground connection.
If no fault can be found, replace the gear selector module (GSM).

Other information
- Connecting the breakout box, B6324S5, TF-80SC, B6324S5, TF-80SC AWD Connecting The Breakout Box, Transmission Control Module (TCM)
- Signal specification, B6324S5, TF-80SC, B6324S5, TF-80SC AWD Signal Specification, Transmission Control Module (TCM)
- Checking wiring and terminals Checking Wiring And Terminals
- For access to connector: Top panel Geartronic, replacing, B6324S5, TF-80SC, B6324S5, TF-80SC AWD Top Panel Geartronic, Replacing
- For access to connector:









Continue - Verification

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