Incorrect Gear Ratio

Incorrect gear ratio

Checking the adjustment of the gear-shift position sensor




- Ignition on
- Read off the position of the gear selector.
Move the gear selector into all positions. Check that the gear-shift positions are updated.

Hint: If the display shows an undefined position (O2 for example) the gear position sensor is incorrectly adjusted.

Remedy as necessary

Other information:
- To adjust the gear-shift position sensor, see Gear-shift position sensor, checking/adjusting Adjustments.









Is the gear-shift position sensor incorrectly adjusted?

Yes - Verification

No - Checking for contact resistance and oxidation

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Checking noise in the transmission
- Test drive the car. See
- Check for any clearly audible noises from the transmission. Check for malfunctions.





Is the transmission making a noise?

Yes - Replacing the transmission

No - Fault Found

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Checking for contact resistance and oxidation




- Ignition off.
Check the transmission connectors and the control module connector. Check for contact resistance and oxidation. See Checking wiring and terminals. Permanent fault Checking Wiring and Terminals. Permanent Fault

Other information:
- To access the transmission connectors, see Connectors transmission, disconnecting / connecting Procedures.






Continue - Checking noise in the transmission

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Replacing the transmission

Note! In the event of faults during the first year on the market, replace transmission AW55-50SN.

Replace the transmission. See Gearbox, removing Transmission, Removing and Transmission, installing Transmission, Installation.






Continue - Verification

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Verification




Verification

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








- Ignition off
- Reconnect the connectors, components, etc.
- Ignition on
Test drive the vehicle following: Test drive schedule, description Test Drive Schedule, Description
During the test drive, oil temperature should be over 20 °C.
Note any deviations in transmission function.

Does the transmission function flawlessly?

Yes - VERIFIED

No - VERIFICATION FAILEDPAPER

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VERIFICATION FAILED - Fault-tracing information

VERIFIED - Fault Found

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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 - FAULT-TRACING FAILED

No - Attempt New Test

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FAULT-TRACING FAILED - FAULT-TRACING FAILED

Attempt New Test - Checking the adjustment of the gear-shift position sensor

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