Diagnostic Trouble Code (DTC) Information

Diagnostic trouble code (DTC) information ECM-9850

Condition




The diagnostic trouble code (DTC) is stored if the engine control module (ECM) registers an internal fault in one of the internal monitoring functions in the engine control module (ECM). This diagnostic trouble code (DTC) is normally always stored with one of the other diagnostic trouble codes (DTCs) which affect the internal monitoring functions.
The diagnostic trouble code (DTC) is diagnosed at ignition on or with the engine running.

Substitute value
None.

Possible source
- One of the diagnostic trouble codes (DTCs) which affect the internal monitoring functions is stored in the engine control module (ECM)
- Damaged engine control module (ECM).

Fault symptom[s]
- Driving/Poor performance/lacks power
- Idling/Uneven idle