DTC P2118 Throttle Actuator Control Motor Current Range / Performance: Description

The Electronic Throttle Control System (ETCS) has a dedicated power supply circuit. The voltage (+BM) is monitored and when the voltage is low (less than 4 V), the ECM concludes that the ETCS has a fault and current to the throttle actuator is cut.

When the voltage becomes unstable, the ETCS 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 has returned to normal, turn the ignition switch OFF. The ECM then allows current to flow to the throttle actuator so that the engine can be restarted.

HINT:

The ETCS does not use a throttle cable.

Fig 1: Throttle Actuator Control Circuit Diagram

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