Fault-Tracing Information

Fault-tracing

Checking components and wiring








- Ignition off
The diagnostic trouble code (DTC) indicates that communication between the Engine control module (ECM) and/or radiator temperature sensor is not working. This may be due to a fault in the signal cable between the units or a damaged communication unit in any or both control modules. Check if there is another LIN-related diagnostic trouble code stored.
Check the connectors. Check for loose connections. Check for contact resistance. Check for oxidation.
Check the signal cable for open circuit, short circuit to ground and short circuit to supply voltage.
Remedy as necessary.

Other information
- Connecting the breakout box, B6324S4 Connecting The Breakout Box, Engine Control Module (ECM)
- Signal specification, B6324S4 Signal Specification, Engine Control Module (ECM)
- Checking wiring and terminals Checking Wiring And Terminals

Select Continue

Continue - Verification

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Verification




Verification

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








- Ignition off
- Reconnect the connectors, components, etc.
- Start the engine.
- Read the diagnostic status and fault status for the diagnostic trouble code by selecting the diagnostic trouble code in the list.
Increase the engine speed a few times until the scan is "Implemented".
Check the fault status for the diagnostic trouble code when the scan is "Implemented". When the function is correct the fault status should be "No fault found" when the scan is implemented.





Is the function OK?

Yes - VERIFIED

No - VERIFICATION FAILED

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VERIFIED - FAULT FOUND

VERIFICATION FAILED - Fault-tracing information

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Fault-tracing information

Attempt New Test - Checking components and wiring

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