Faulty Signal

Faulty signal

Checking the component and wiring
Check the fuse for the circuit.
Check the system relay connector. Check for contact resistance. Check for oxidation.
Check the power cable between the system relay and engine control module (ECM) terminal #B6 (#B6). Check for an open-circuit. Check for a short-circuit to ground.
Remedy as necessary.

Hint: The diagnostic trouble code (DTC) can be caused by a damaged system relay.

Other information
- Connecting the breakout box Connecting The Breakout Box, Engine Control Module (ECM)
- Signal specification Signal Specification, Engine Control Module (ECM)
- For further information about the fuses and relays, see the Wiring Diagram
- Checking wiring and terminals Checking Wiring and Terminals










Continue - Verification

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Verification




Verification

Verification

Hint: After carrying out the repair, check that the fault has been remedied.








- Ignition off
- Reinstall the connectors, components etc.
- Start the engine.
Read off the battery voltage from the system relay.
Check whether the battery voltage is too high or too low.





Is the function OK?

Yes - VERIFIED

No - VERIFICATION FAILED

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VERIFICATION FAILED - Fault-tracing information

VERIFIED - Fault Found

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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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Attempt New Test - Checking the component and wiring

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