Operation CHARM: Car repair manuals for everyone.

Checking The Ground Terminal, Climate Control Module






Checking the ground terminal, climate control module

Checking the ground terminal




- Ignition off
- Disconnect the climate control module
- Switch off all equipment that takes power from the battery (courtesy lighting, radio etc.)
- Connect an ohmmeter between control module terminal #A8 on the breakout box and the battery negative terminal
- The ohmmeter should read approximately 0ohms.

Other information:
- To connect the breakout box, see Connecting the breakout box, climate control module Connecting The Breakout Box
- For information about signals, see Climate control signal specifications Signal Specification.









Was a fault detected?

Yes - Checking for an open-circuit

No - FAULT FOUND

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Checking for an open-circuit
- Check the cable between climate control module terminal #A8 on the breakout box and the ground terminal. Check for contact resistance and oxidation and an open-circuit.

Other information:
- For further information about the cable and ground terminal, refer to the Wiring diagrams Service Manual
- Checking wiring and terminals. Permanent fault Checking Wiring and Terminals. Permanent Fault










Continue - FAULT FOUND

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Fault-tracing information




Information

Fault-tracing information
The fault should be diagnosed and remedied. Since this is not the case the fault-tracing process has failed.
Complete the fault-tracing for those fault or try again.

Do you want to terminate fault-tracing at this time?

Yes - Exit fault-tracing

No - Attempt New Test

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Attempt New Test - Checking the ground terminal

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