Diagnostic Trouble Code (DTC) Information

Diagnostic trouble code (DTC) information ECM-950D

Condition




If Engine Control Module (ECM) registers that the actual idle rpm (actual value) is under the limit value for a certain time, the diagnostic trouble code (DTC) is generated.

Substitute value
- None.

Possible source
- Blocked intake system.
- Blocked exhaust system.

Fault symptom[s]
- Malfunction indicator light (MIL), on
- Low idle speed
- Uneven idle