Fault-Tracing Information

Fault-tracing

Downloading software





Downloading software

Programming control module
Differential electronic module (DEM) has registered an internal fault that may be due to incorrect software.
Go to the software manager and program the control module with the latest software.





Has the fault been remedied?

Yes - FAULT FOUND

No - DONE

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DONE - Checking the fault status

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Replacing the control module





Replacing the control module

Replacing the control module

Note! When replacing the differential electronic module (DEM), oil pressure pump or complete all-wheel drive clutch package, the control module needs to be calibrated.

The control module has registered an internal fault.
The problem is solved by changing Differential electronic module (DEM).

Other information
- Component locations, Differential Electronic Module (DEM) Locations
- Active On-Demand Coupling Module, B6304T4, TF-80SC AWD, B6324S5, TF-80SC AWD, B6324S4, TF-80SC AWD Service and Repair
Remedy as necessary.





Continue - DONE

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DONE - Calibration of differential electronic module (DEM)

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Calibration of differential electronic module (DEM)





Calibration of differential electronic module (DEM)

Calibration of differential electronic module (DEM)
This service is used to carry out calibration of the four-wheel drive control module (DEM).

Caution! The calibration service is a power-hungry procedure, and so it is important for a battery charger with sufficient charging capacity to be connected to the vehicle so that it can be powered sufficiently. The power supply is important so as to ensure the reliability of the calibration.

Calibration of differential electronic module (DEM)
1. Switch off the engine.
2. Make sure that the battery charger is connected to the vehicle.
3. Engine running.
4. Click on the VCT2000 symbol for calibration.

Note! A buzzing noise can be heard when calibrating the control module. This is normal behavior.









Continue - DONE

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DONE - FAULT FOUND

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Checking the fault status





Checking the fault status

Checking the fault status

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

- Switch off the engine.
- Wait 1 minute.
- Start the engine.
- Click the symbol for VCT2000 to begin reading off.
- Read off the diagnostic status and the fault status for the diagnostic trouble code (DTC).
- Check that the diagnosis is Performed.

Note! To enable performing diagnostic status, special conditions must be fulfilled. These conditions are described in diagnostic trouble code (DTC) information for each diagnostic trouble code (DTC).

If the function is correct, the fault status must be No fault found when the diagnostic is complete.





Is the function OK?

Yes - FAULT FOUND

No - DONE

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DONE - Replacing the control module

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