Checking Air Conditioning (A/C) Signal

Checking air conditioning (A/C) signal

Checking the cable




- Ignition off
- Check the control module connector A and ECC control module connector B. Check for contact resistance and oxidation according to Checking wiring and terminals. Permanent fault Checking Wiring and Terminals. Permanent Fault.
Connect an ohmmeter between the control module connector terminal #A17 and ECC control module connector terminal #B7.
Test for an open-circuit according to Checking wiring and terminals. Permanent fault Checking Wiring and Terminals. Permanent Fault.
Remedy as necessary.













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

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
- Convertible top in the closed position
- Activate the air conditioning (A/C) system (ECC)
- Read off the status of the air conditioning (A/C) system signal.
The status should be active in the raised position





Is air conditioning (A/C) system functioning?

Yes - Verification, continued

No - VERIFICATION FAILED

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Verification, continued
- Operate the convertible top to the open position
- Read off the status of the air conditioning (A/C) system signal.
The status must be inactive in the open position





Is air conditioning (A/C) system functioning?

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 cable

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