Checking the Ground Terminal for the Steering Wheel Module

Checking the ground terminal








- Ignition off
- the control module disconnected
- Switch off all equipment that takes power from the battery (courtesy lighting, radio etc).
Connect an ohmmeter between terminal #16 on the breakout box and the battery negative terminal.
To connect the breakout box, see Connecting the breakout box Connecting the Breakout Box.








The ohmmeter should read approximately 0 ohms.

OK - Procedure complete

Not OK - Checking for open-circuits, contact resistance and oxidation

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Checking for open-circuits, contact resistance and oxidation
For the control module, check ground terminal 31/84 and the wiring connected to it. Check for an open-circuit. See Checking wiring and terminals. Permanent fault Checking Wiring and Terminals. Permanent Fault. Check for contact resistance and oxidation. See Checking wiring and terminals. Permanent fault Checking Wiring and Terminals. Permanent Fault.





Continue - Verification

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Verification








- Ignition off
- the control module disconnected.
- Switch off all equipment that takes power from the battery (courtesy lighting, radio etc).
For the control module, connect an ohmmeter between terminal #16 on the breakout box and the battery negative terminal.





The ohmmeter should read 0 Ohms.

Yes - Procedure complete

No - Fault-tracing information

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Fault-tracing information




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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