DTC ECM-91E0

Condition
Electronic throttle module has registered that the voltage has fallen below 9 V for longer 9 minutes at a time, or exceeded 16 V more than 5 seconds at a time, with ignition on. Diagnostic trouble code (DTC) ECM-91E0 is stored in the engine control module (ECM).

Substitute value
None.

Possible source
- the power supply to the throttle unit
- loose connections or contact resistance in the connectors
- poorly charged battery or corroded in the connecting cables
- defective generator (GEN) or charge regulator.

Fault symptom[s]
None.