Troubleshooting

DTC P2118 THROTTLE ACTUATOR CONTROL MOTOR CURRENT RANGE/PERFORMANCE*

*: Only for sequential manual transmission vehicle.

CIRCUIT DESCRIPTION

DTC Detection Condition:

Positive battery voltage is supplied to terminal +BM of the ECM even if the ignition switch is turned to OFF for the Electronic Throttle Control System (ETCS) control system.

If this DTC is stored, the ECM shuts down the power for the ETCS motor and the magnetic clutch, and the ETCS valve is fully closed by the return spring.

However, the opening angle of the ETCS valve can be controlled by the accelerator pedal through the ETCS cable.

MONITOR DESCRIPTION

Monitor Strategy:

Typical Enabling Condition:

Typical Malfunction Thresholds:

Component Operating Range:

The ECM monitors the battery supply voltage applied to the throttle motor. When the power supply voltage drops below the threshold, the ECM concludes that the power supply circuit is an open circuit. A DTC is set and the MIL is turned ON.

Wiring Diagram:

Step 1:

Step 2 - 3:

INSPECTION PROCEDURE

HINT: Read freeze frame data using the hand-held tester or the OBD II scan tool. Freeze frame data records the engine conditions when a malfunction is detected. When troubleshooting, freeze frame data can help determine if the vehicle was running or stopped, if the engine was warmed up or not, if the air-fuel ratio was lean or rich, and other data from the time the malfunction occurred.