Diagnostic Trouble Code (DTC) Information ECM-919A
Condition
The diagnostic trouble code (DTC) is stored if the engine control module (ECM) registers that the internal governor for control of the throttle angle in the throttle unit is faulty or that the control signal for the governor is too low when controlling the throttle. The diagnostic trouble code (DTC) is diagnosed when the engine is idling.
Substitute Value
The engine control module (ECM) shuts down the supply to the damper motor for the electronic throttle unit. The throttle will set itself in the return position, or reversible fuel shut-off will take place.
Possible Source
- The throttle is sticking or is blocked (oil film, dust etc.)
- Contact resistance or oxidation in the terminals between the engine control module (ECM) and the electronic throttle unit
- Open-circuit, short-circuit to ground or short-circuit to supply voltage in the wiring for the damper motor in the throttle unit
- Short-circuit to each other in the wiring for the damper motor in the throttle unit
- Damaged throttle unit
- Faulty software in the engine control module (ECM).
Fault symptom[s]
- Malfunction indicator lamp (MIL) lit
- Poor performance.