Fault-Tracing Information

Fault-tracing

Checking the sensor




Power Operated Tailgate Module (POT) checks the hydraulic operation of the tailgate with a hall sensor. Hall sensor shall only be active when there is over-pressure in the hydraulic system, e.g., in case of clamping something or just when the tailgate reaches completely open position.
Check hall sensor by:
- Ignition on.
- Click on the symbol for VCT2000 and read out status for hall sensor.
- If status for hall sensor shows short-circuiting or open circuit the next two steps can be skipped.
- If status for hall sensor shows active, when the hydraulic motor is not run, the hydraulic pump is damaged. Then replace Power Operated Tailgate Module (POT) and its hydraulic parts.
- Check that the hall sensor works by closing the tailgate and hold down until it opens again. The status shall change just before the tailgate opens.

Other information
- Location of components Locations
- Power Liftgate Module Service and Repair
- Load sensor, tailgate Load Sensor, Tailgate
- Luggage Compartment Lid Lift Cylinder Service and Repair





Does the sensor work?

Yes - Verification

No - Checking the components and wiring

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Checking the components and wiring
If short-circuiting or open circuit is obtained when reading out status of hall sensor, the cable harness between Power Operated Tailgate Module (POT) and hall sensor shall be checked. Also check the connector for Power Operated Tailgate Module (POT) for loose connection and oxidation.
If the cable harness is intact, replace Power Operated Tailgate Module (POT) and its hydraulic parts.

Checks after replacement
Check that the latest software is in the module by downloading an upgrade for Power Operated Tailgate Module (POT).

Other information
- Location of components Locations
- Checking wiring and terminals Checking Wiring And Terminals
- Power Liftgate Module Service and Repair
- Load sensor, tailgate Load Sensor, Tailgate
- Luggage Compartment Lid Lift Cylinder Service and Repair

Continue - Verification

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Information

Attempt New Test - Checking the sensor

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Verification




Verification





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

- Ignition off.
- Reinstall the connectors, components etc.
- Ignition on.
- Check the function by opening and closing the tailgate using the different button combinations.
- Read off the diagnostic trouble codes (DTCs) by clicking on the VCT2000 symbol.
- Check that the diagnostic trouble code has disappeared or changed status to intermittent. Then the problem has been solved.





Has the fault been remedied?

Yes - FAULT FOUND

No - Attempt New Test

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Attempt New Test - Information

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