Signal Missing
Signal missing
Status check
- Start the engine and allow it to idle or drive the car until it has reached operating temperature.
Check whether the engine coolant temperature (ECT) gauge is displaying a value outside its permitted range.
Does the engine coolant temperature (ECT) gauge display a value outside its permitted range?
Yes - Checking components and wiring
No - Checking components and wiring
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Checking components and wiring
Check the signal cable between the engine control module (ECM) and the combined instrument panel terminal #B10. Check for a short-circuit to ground. Check for a short-circuit to supply voltage. Check for an open-circuit.
Remedy as necessary.
Other information:
- Checking wiring and terminals. Permanent fault Checking Wiring and Terminals. Permanent Fault
- To connect the breakout box for the combined instrument panel, see Connecting the breakout box Connecting the Breakout Box, Driver Information Module (DIM)
- To access and replace the combined instrument panel, see Driver information module, removing/installing Removal and Replacement
- For information about signals, see Signal specification Signal Specification, Driver Information Module (DIM).
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.
- Start the engine and allow it to idle or drive the car until it has reached operating temperature.
Check the engine coolant temperature (ECT) and compare with the engine coolant temperature (ECT) gauge reading in the combined instrument panel. At approximately 80°C the needle is midway between Min and Max.
Does the engine coolant temperature (ECT) gauge display a value within its permitted range?
Yes - VERIFIED
No - VERIFICATION FAILED
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VERIFIED - FAULT FOUND
VERIFICATION FAILED - Fault-tracing information
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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 components and wiring
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Checking components and wiring
Check the signal cable between the engine control module (ECM) and combined instrument panel terminal #B10. Check for an intermittent short-circuit to ground. Check for an intermittent short-circuit to supply voltage. Check for an intermittent open-circuit.
Remedy as necessary.
Other information:
- Checking wiring and terminals. Intermittent faults Checking Wiring and Terminals. Intermittent Faults
- To connect the breakout box for the combined instrument panel, see Connecting the breakout box Connecting the Breakout Box, Driver Information Module (DIM)
- To access and replace the combined instrument panel, see Driver information module, removing/installing Removal and Replacement
- For information about signals, see Signal specification Signal Specification, Driver Information Module (DIM).
Continue - Fault-tracing information
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Fault-tracing information
Information
Fault-tracing information
If the fault is intermittent, do not verify fault-tracing if the fault does not recur.
It is possible to view the information again, or leave fault-tracing for this diagnostic trouble code (DTC).
Do you want to view the information again?
Yes - Attempt New Test
No - FAULT FOUND
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Attempt New Test - Checking components and wiring
FAULT FOUND - DONE
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