DTC P0657-14: Actuator Supply Voltage "A" Circuit Short to Ground or Open [12/2019 - 10/2022]: Description
The electronic throttle control system has a dedicated power supply circuit. The voltage (+BM) is monitored and when it is low (less than 4 V), the ECM determines that there is a malfunction in the electronic throttle control system and cuts off the current to the throttle actuator.
When the voltage becomes unstable, the electronic throttle control system itself becomes unstable. For this reason, when the voltage is low, the current to the throttle actuator is cut. If repairs are made and the system returns to normal, turn the ignition switch off. If a malfunction is not detected the ECM allows current to flow to the throttle actuator so that it can operate.
HINT:
The electronic throttle control system does not use a throttle cable.
| DTC No. | Detection Item | DTC Detection Condition | Trouble Area | MIL | Memory | Note |
|---|---|---|---|---|---|---|
| P0657-14 | Actuator Supply Voltage "A" Circuit Short to Ground or Open | An open or short is detected in the electronic throttle control system power source (+BM) circuit (1 trip detection logic). |
|
Comes on | DTC stored | SAE Code: P0658 DTC for Mexico Models: - Applies |