Diagnostic Trouble Code (DTC) Information ECM-914C
Condition
The engine control module (ECM) checks the signals from position sensor in the throttle unit. The diagnostic trouble code (DTC) is stored if the engine control module (ECM) registers a fault in the signals from the position sensors in the throttle unit.
The diagnostic trouble code (DTC) can be diagnosed when the ignition is switched on.
Substitute Value
- In the event of a detected fault in one of the signals the other signal is used
- The cruise control is disengaged when the fault is active.
Possible Source
Signal too high
- Contact resistance or oxidation in the terminals
- Short-circuit to voltage in the signal cables
- Short-circuit to battery voltage in the power supply
- Open-circuit in the ground lead
- Short-circuit to supply voltage in the ground lead
- Damaged throttle unit.
Signal too low
- Contact resistance or oxidation in the terminals
- Short-circuit to ground in the signal cables
- Open-circuit in the signal cables
- Short-circuit to ground in the power supply
- Open-circuit in the power supply
- Damaged throttle unit.
Faulty signal
- Contact resistance or oxidation in the terminals
- Damaged throttle unit.
Fault symptom[s]
- Deterioration in performance
- Cruise control does not function at all.