Fault-tracing
Fault-tracing
Checking the component
Warning! Engine cooling fan (FC) can also operate if the ignition is switched off when this diagnostic trouble code (DTC) is stored.
Hint: To avoid injury, disconnect the power supply to the engine cooling fan (FC) during fault-tracing.
- Check the connector on the engine coolant temperature (ECT) sensor. Check for contact resistance and oxidation.
This diagnostic trouble code (DTC) is stored if the engine coolant temperature (ECT) sensor freezes. This may happen if the coolant level is low or there is too little glycol in the coolant. Check the engine coolant level and its freezing point.
Hint: The diagnostic trouble code (DTC) can be caused by a thermostat that doesn't open.
Replace the engine coolant temperature (ECT) sensor if the above does not remedy the fault.
Remedy as necessary.
Other information
- Temperature sensor engine coolant, replacing Service and Repair
- 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
- Reconnect the connectors, reinstall components etc.
- Ignition on
- Read off the engine coolant temperature (ECT) sensor.
Is the temperature within its permitted range?
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 - FAULT-TRACING FAILED
No - Attempt New Test
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FAULT-TRACING FAILED - FAULT-TRACING FAILED
Attempt New Test - Checking the component
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