Faulty Signal

Faulty signal

Checking components and connections




- Ignition on
- Activate reading off the position of the throttle
- Check that both sensors indicate give values within the permitted range for different deployments
- Ignition off.
Check the engine control module (ECM) and the throttle unit connector. Check for contact resistance. Check for oxidation.
Check if the throttle unit is blocked. Press the throttle disc to check for jamming.
Clean the throttle unit if necessary.

Other information
- Connecting the breakout box Connecting The Breakout Box, Engine Control Module (ECM)
- Signal specification Signal Specification, Engine Control Module (ECM)
- Throttle body Removal and Replacement
- Throttle body, cleaning Procedures
- Checking wiring and terminals Checking Wiring And Terminals













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.
Activate reading off the position of the throttle.
Check that both sensors indicate values within the permitted range at different deployments.





Are these values within their permitted ranges?

Yes - VERIFIED

No - VERIFICATION FAILED

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VERIFIED - FAULT FOUND

VERIFICATION FAILED - Fault-tracing information

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Fault-tracing information

FAULT-TRACING FAILED - FAULT-TRACING FAILED

Attempt New Test - Checking components and connections

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