Fault-Tracing

Fault-tracing TCM-0002

Checking shift solenoid S1




- Ignition on
- Activate solenoid S1.
Check the status of solenoid S1. The status must switch between OFF and ON.
The fault is permanent if the status does not change.
If the status switches it means that the fault was present previously but is not active now. There is an intermittent fault.










Continue - Checking the components and wiring

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Checking the components and wiring








- Ignition off
- Open the gearbox control system
Check the cable between transmission connector terminal #B5 and the connector for solenoid S1. Check for an open-circuit. Check for a short-circuit to supply voltage.

Hint: If no fault is found in the wiring check solenoid S1. See: Checking internal components of the transmission Checking Internal Components of the Transmission

Remedy as necessary.

Other information
- Connecting the breakout box Connecting Breakout Box, Transmission Control Module (TCM)
- Signal description Signal Description. Transmission Control Module (TCM)
- Cable harness, control system, gearbox, replacing Service and Repair
- To access the transmission's control system, see: Cover control system, replacing Cover Control System, Replacing
- To access connector B/solenoid replacement, see: Solenoid control system, replacing Solenoid Control System, Replacing
- Checking wiring and terminals Checking Wiring And Terminals










Continue - Resetting adaptation and the fluid quality counter

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Resetting adaptation and the fluid quality counter





Resetting adaptation

Resetting adaptation and counter for "Transmission oil, changing"

Hint: The transmission has torque-controlled, adaptive pressure control. The pressure control means that the transmission itself controls the pressure during each shift sequence in order to avoid harsh shifting. Each shift is assessed by the transmission control module (TCM) and is stored in the internal memory, which results in compensation for wear in the transmission and clutch. In order for the transmission to function correctly after repair, it is important to reset the adaptation in the memory. Since the oil is changed during the repair, the counter for "Transmission oil, change" shall also be reset. If the counter is not reset when draining/changing oil, there is a risk that a diagnostic trouble code may be generated under incorrect conditions.

Note! This applies only if the transmission or one of the components in the transmission have been replaced.




- Ignition on
Activate reset of the adaptation and the counter by clicking on the symbol for VCT2000.






Continue - DONE

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DONE - Verification

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Verification




Verification

Verification

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








- Ignition off
- Reinstall the components, reconnect the connectors etc.
- Ignition on
- Activate solenoid S1 by clicking the symbol for VCT2000.
Read the status of solenoid S1. The status must switch between OFF and ON.





Does the status 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




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 shift solenoid S1

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