Fault-Tracing Information

Fault-tracing

Checking the wiring and connectors





Checking the wiring and connectors

Checking the wiring and connectors




- Ignition off.
Check the battery voltage.
Check the connector between oil pressure pump and Differential electronic module (DEM) for damaged pins, loose connection, or other defects that may affect functionality.
Check the control module ground terminal. Check for contact resistance and oxidation.
Check the cable for a short-circuit to supply voltage.
Check the cable for short-circuit to ground.
Check the cable for an open-circuit.
Remedy as necessary.

Other information
- Checking wiring and terminals Checking Wiring And Terminals
- Checking the supply voltage/ground terminal Component Tests and General Diagnostics
- Signal specification, differential electronic module (DEM) Pinout Values and Diagnostic Parameters
- Component locations, Differential Electronic Module (DEM) Locations





Was the fault found?

Yes - FAULT FOUND

No - DONE

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DONE - Checking the oil pump

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Checking the oil pump





Replacement of oil pressure pump

Replacement of oil pressure pump

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.

Since no malfunction was found, the symptom indicates that the malfunction is located in the oil pressure pump.
Solve by changing the oil pressure pump.

Caution! When fitting the oil pressure pump, it is important to ensure that it is fitted in the right direction.

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






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 - DONE

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