Fault-Tracing

Fault-tracing TCM-0131

Checking the line pressure solenoid SLC1




- Ignition on
- Activate solenoid SLC1 by clicking the VCT2000 symbol.
Read the current though the circuit for solenoid SLC1. The current must oscillate between approximately 100 and 950 mA.
The fault is permanent if the current does not change.
If the current oscillates then this would suggest that the fault has previously been present but is no longer active. The fault is intermittent.










Continue - Checking the components and wiring

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Checking the components and wiring








- Ignition off
- Open the gearbox control system
Check connector B (22-pin) for the transmission control module (TCM). Check for damage and pressed in terminal pins. Check for contact resistance and oxidation.
Check the wiring between the transmission connector terminal #B11 and the connector for solenoid SLC1 terminal #1. Check the wiring between the transmission connector terminal #B10 and the connector for solenoid SLC1 terminal #2. Check for an open circuit. Check for a short-circuit to ground.

Hint: If no fault is found in the wiring, check solenoid SLC1. See: Checking internal components of the transmission Checking Internal Components of the Transmission

If no fault is found in the wiring or the component replace the control system.
Remedy as necessary.

Other information
- Connecting the breakout box Connecting Breakout Box, Transmission Control Module (TCM)
- Signal description Signal Description. Transmission Control Module (TCM)
- Control system, replacing Control System, Replacing
- Cable harness, control system, gearbox, replacing Service and Repair
- Cover control system, replacing Cover 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 SLC1 by clicking on the symbol for VCT2000.
Read the current through the circuit for solenoid SLC1. The current should oscillate between 100 and 950 mA.









Is the function OK?

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 the line pressure solenoid SLC1

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