Faulty Communication
Faulty communication
Status check
Reading off the status of the diagnostic trouble code (DTC)
Engine control module (ECM)
Reading off the status of the diagnostic trouble code (DTC):
Note! When reading off the DTC status, other stored diagnostic trouble codes (DTCs) and their status will also be listed.
- Start the engine. Let it idle for at least 15 seconds.
- Read off the diagnostic trouble code (DTC) status. Check the status of the relevant diagnostic trouble code (DTC).
Was the status of the relevant diagnostic trouble code (DTC) permanent?
Yes - PERMANENT
No - INTERMITTENT
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PERMANENT - Checking wiring
INTERMITTENT - Intermittent fault
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Checking wiring
The engine control module (ECM) has registered that the +15-supply to the ignition switch has been missing 3 times during the same driving cycle.
Hint: Check the function of the ignition switch and the wiring at terminal 15, between the ignition switch and the engine control module (ECM), according to wiring diagram Section 3(39).
Remedy as necessary.
Continue - Fault-tracing information
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Intermittent fault
The engine control module (ECM) has previously detected a fault in the communication between the immobilizer function in the central electronic module (CEM) and the engine control module (ECM).
Other information:
- For information about engine management system signals, see
- For information about the central electronic module (CEM) signals, see Signal specification Pinout Values and Diagnostic Parameters.
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 - Status check
FAULT FOUND - DONE
DONE - DONE
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Fault-tracing information
Information
Fault-tracing information
In case of this defect, troubleshooting is not followed by verification.
The information can be displayed again or the fault-tracing for this fault can be interrupted.
Do you want to view the information again?
Yes - Attempt New Test
No - Fault Found
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Attempt New Test - Status check
FAULT FOUND - DONE
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