General Description

ETC(Electronic Throttle Control Valve) is the device controlling amount of air to engine acccording to driver’s intension. Different from the existing mechanical throttle valve which is composed of accelerator pecal and connecting wire cable, ETC consists of a motor, a throttle body and a throttle position sensor. Receiving input signals from electronic accelerator pedal module, PCM lets ETC motor control throttle valve. With ETC, cruise control system works without any additional device.

DTC Description

Checking the voltage from sensor power supply every 1.87 sec. under detecting condition, if the value within detecting condition lasts for more than 0.2 sec., PCM sets P0641. MIL(Malfunction Indicatin Lamp) turns on when the malfunction lasts till consecutive 2 driving cycle.

DTC Detecting Condition

Item

Detecting Condition

Possible cause

DTC Strategy

● Sensor reference voltage check

● Short in sensor power supply line

● Faulty PCM

Enable Conditions

● IG "ON"

Threshold value

● Sensor supply power < 4.5V or > 5.5V

Diagnosis Time

● Continuous (More than 0.2 seconds failure for every 1.87 seconds test )

MIL On Condition

● 2 driving cycle

Schematic Diagram
Яндекс.Метрика