Signal Too High. Permanent Fault

Signal too high. Permanent fault

Checking the connectors and cables




- Ignition on
- Check control module connector A for a short-circuit to supply voltage according to Checking wiring and terminals. Permanent fault Checking Wiring and Terminals. Permanent Fault.
Connect a voltmeter between control module A2 and ground (Side windows down).
Check for a short-circuit to supply voltage according to Checking wiring and terminals. Permanent fault Checking Wiring and Terminals. Permanent Fault.
Connect a voltmeter between control module A3 and ground (Trunk lid inhibitor).
Take the same reading as above.
Connect a voltmeter between control module A4 and ground (Warning signal).
Take the same reading as above.
Connect a voltmeter between control module A5 and ground (Rear demist).
Take the same reading as above.
If a short-circuit to supply voltage is found, begin by checking the connector for the faulty component for a short-circuit to supply voltage. See Checking wiring and terminals. Permanent fault Checking Wiring and Terminals. Permanent Fault.
If no short-circuit to supply voltage is found, the fault may be in one of the affected components; the warning buzzer, the heated rear windshield, the trunk lid inhibitor or window module.
Remedy as necessary.

Other information:
- To access and replace the control module see Replacing the control module Service and Repair
- To connect the breakout box, see Connecting the convertible control unit breakout box Connecting the Breakout Box
- To access or replace the relays for the heated rear windshield.









Select Continue when the fault has been remedied.

Continue - Verification

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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 that all functions are fault-free: Test operate the convertible system according to Test operating the convertible system Test Operating the Convertible System.

Are the various functions fault-free?

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 connectors and cables

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