Internal Fault

Internal fault

Checking the shift solenoids




- Ignition on.
- Gear selector in position P.
- Activate shift solenoids S1, S2, S3, S4 and S5 individually.
The status should change between OFF and ON.
If the status does not change this indicates an internal fault in the control module.





Does the status of the solenoids change?

Yes - No Fault Found

No - Replacing the control module

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Replacing the control module

Caution! A new control module is delivered without software. The control module must be programmed in order to function after replacement.

For further information about programming and replacing the control module, see Transmission control module (TCM), replacing, B5244T5, AW55-50/51SN, B5254T2, AW55-50/51SN, B5254T2, AW50/51 AWD Service and Repair.






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, reinstall components etc.
- Ignition on.
- Gear selector in position P.
- Activate shift solenoids S1, S2, S3, S4 and S5 individually.
The status should switch between OFF and ON.





Does the status change?

Yes - VERIFIED

No - VERIFICATION FAILEDPAPER

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VERIFICATION FAILED - Fault-tracing information

PAPER - No Fault Found

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 shift solenoids

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