Fault-Tracing Information

Fault-tracing

Checking components and connections




- Ignition on.
- Activate reading off the position of the throttle.
- Check that read-off throttle position shows reasonable values at different deployments.
- Ignition off.
Check cables between Engine Control Module (ECM) and Throttle Module for short-circuit to voltage or ground.
Check the Throttle Module electrically by measuring between casing and connector.
Remedy as necessary.

Other information
- Connecting the breakout box, B6304T4 Breakout Box Connection, Engine Control Module (ECM)
- Throttle body, B6304T4 Removal and Replacement
- Engine control module (ECM), B6304T4 Service and Repair
- Checking wiring and terminals Checking Wiring and Terminals. Permanent Faults













Continue - Verification

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Fault-tracing information

Attempt New Test - Checking components and connections

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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
Activate readout of electronic throttle unit's position.
Check that read-off throttle position shows reasonable values at different deployments.





Are these values within their permitted ranges?

Yes - VERIFIED

No - VERIFICATION FAILED

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VERIFICATION FAILED - Fault-tracing information

VERIFIED - FAULT FOUND

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