The Counter Exceeds the Limit Value

The counter exceeds the limit value

Checking oil temperature








- Ignition on
- Read off the oil temperature for the transmission control module (TCM).
Check that the oil temperature is within its permitted range. Compare it to the automatic transmission temperature.

Note! The transmission temperature sensor is located inside the control system and may be affected by the heat given off by the solenoids.









Is the temperature OK?

OK - Checking the wiring and component

Not OK - Checking the wiring and component

-------------------------------------------------

Checking the wiring and component
The probable cause of the diagnostic trouble code (DTC) was the transmission being subjected to high loads and high temperatures. It is therefore important to change transmission fluid and to check the function of the transmission.
Change the oil. See: Transaxle oil, B5254T7, AW55-50/51SN Transaxle Oil





Continue - Resetting oil quality counter

-------------------------------------------------

Resetting oil quality counter





Resetting the Transmission fluid change counter

Resetting the Transmission fluid change counter

Hint: The transmission control module (TCM) has a counter for the oil quality. The counter counts up if the transmission is exposed to too high a load or an ambient temperature that is too high. If the counter is not reset when the oil is drained or changed, there is a risk that a diagnostic trouble code (DTC) will be stored incorrectly. Therefore it is important that the "Transmission oil change" counter is reset.

Note! This only applies when the transmission fluid is changed and when the fluid is changed during repairs to the transmission temperature sensor.




- Ignition on.
Click on the VCT2000 symbol to reset the counter.





Continue - DONE

------------------------

DONE - Test driving

-------------------------------------------------

Test driving
Test drive the car according to: Test drive schedule, description, B5254T7, AW55-50/51SN Test Drive Schedule, Description





Are there any mechanical faults in the transmission?

Yes - Fault-tracing information

No - FAULT FOUND

-------------------------------------------------

Fault-tracing information
Exit the current fault-tracing. Add mechanical symptoms to the symptoms list. Fault-trace the symptoms.

Continue - DONE

-------------------------------------------------

Checking the wiring and component
Check the signal cable between the oil temperature sensor in the transmission and the transmission control module (TCM) terminal #C14 (#14). Check for a short-circuit to ground.
Remedy as necessary

Other information:
- Connecting the breakout box, AW55-50/51SN Connecting Breakout Box, Transmission Control Module (TCM)
- Signal specification, AW55-50/51SN Signal Specification, Transmission Control Module (TCM)
- To disconnect the transmission control module (TCM), see: Transmission control module (TCM) Service and Repair
- Cover, control system, B5254T7, AW55-50/51SN Cover, Control System
- Checking wiring and terminals Checking Wiring and Terminals

Oil Temperature Sensor:

Continue - Verification

-------------------------------------------------

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 oil temperature for the transmission control module (TCM).
Check that the oil temperature is within its permitted range. Compare it to the automatic transmission temperature.

Note! The transmission temperature sensor is located inside the control system and may be affected by the heat given off by the solenoids.









Is the temperature OK?

Yes - VERIFIED

No - VERIFICATION FAILED

------------------------

VERIFIED - FAULT FOUND

VERIFICATION FAILED - Fault-tracing information

-------------------------------------------------

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 - Exit fault-tracing

No - Attempt New Test

------------------------

Attempt New Test - Checking oil temperature

-------------------------------------------------