Signal Missing. Permanent Fault

Signal missing. Permanent fault

Checking the battery voltage

Note! The fault may also be in other powered systems.

The battery should be checked for loose terminal connections before fault-tracing begins.
Remedy as necessary.

Continue - Checking connectors and wiring

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Checking connectors and wiring




- Check control module connector B for contact resistance and oxidation according to Checking wiring and terminals. Permanent fault Checking Wiring and Terminals. Permanent Fault
- Check control module connector B. Ensure that all the terminal pins are correctly installed and that there is no damage. See Checking wiring and terminals. Permanent fault Checking Wiring and Terminals. Permanent Fault
- Ignition on.
Connect a voltmeter between control module connector B6 and B5 (ground).
The voltmeter should read battery voltage if there is no open-circuit.
Connect a voltmeter between control module connector B8 and B7 (ground).
Take readings as above.
Remedy as necessary.

Other information
- To connect the breakout box, see Connecting the convertible control unit breakout box Connecting the Breakout Box
- To access and replace the control module see Replacing the control module Service and Repair.









Select Continue when the fault has been remedied.

Continue - Verification

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Verification




Verification

Hint: After the repair it is necessary to check that the fault has been rectified.








- Ignition off
- Connect the connectors, install the components, etc.
- Ignition on
- Apply parking brake
- Close the luggage compartment lid
- Speed < 4km/h.
Operate the control switch to move the convertible top.
Move the convertible top to its end positions.

Does the convertible top work?

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 - Exit fault-tracing

No - Attempt New Test

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Attempt New Test - Checking the battery voltage

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