28D-5 653 6
UnclassifiedFuel
What This Code Means
Hardware errors in the injectors and respective ECM power stages; Failure is detected; Learned calibration values require monitoring
Possible Causes
- •Overcurrent
- •Command collision
- •RAM error
- •Short circuit
- •Expected combination of errors is detected (measured and reference pattern are matching)
- •Incorrect injector energizing time at low idle
Suggested Actions
- 1Diagnostic procedure uses pattern detection to identify specific errors
- 2Trigger appropriate substitute reaction
- 3ZFL changes the energizing time of the pilot injection by adding the learned calibration values
- 4Monitor learned calibration values
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