Checking the Ground Terminals

Checking the ground terminal for the rear electronic module

Checking the ground terminal




- Ignition off
- Control module disconnected
- Switch off all equipment that takes power from the battery (courtesy lighting, radio etc).
Connect the breakout box.
Connect an ohmmeter between terminal #B21 on the breakout box and the battery negative terminal.
The ohmmeter should read approximately 0 ohm.

Other information
- To connect the breakout box, see Connecting the breakout box Connecting Breakout Box, Rear Electronic Module (REM).





Is the value OK?

Yes - FAULT FOUND

No - contact resistance and oxidation

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Checking for open-circuits, contact resistance and oxidation
Check ground terminal 31/72 and the wiring connected to it. Check for an open-circuit. Check for contact resistance and oxidation.

Other information
- Checking wiring and terminals Checking Wiring And Terminals





Continue - Verification

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Verification




Verification




- Ignition off
- Control module disconnected
- Switch off all equipment that takes power from the battery (courtesy lighting, radio etc).
Connect an ohmmeter between terminal #B21 on the breakout box and the battery negative terminal.
The ohmmeter should read approximately 0 ohms.





Is the value OK?

Yes - Verification complete

No - Fault-tracing information

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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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