Component Location
General Description

The Electronic Throttle Control(ETC) system is made of the components throttle body, Throttle Position Sensor(TPS) 1&2 and Accelerator Position Sensor(APS) 1&2. The APS is mounted in the accelerator pedal to detect the opening angle of the accelerator pedal. It has 2 sensors to detect the accelerator position and a malfunction of the accelerator position sensor. The ECM judges the current opening angle of the accelerator pedal from APS1&2, and the ECM controls the throttle motor based on these signals.

DTC Description

Checking output signals from APS 2 under detecting condition, if output signals are below the threshold, PCM sets P2127. And then MIL(Malfunction Indication Lamp) turns on.

DTC Detecting Condition

Item

Detecting Condition

Possible Cause

DTC Strategy

● This code detects a continuous short to ground or open in either the circuit or the sensor (0-100%)

● Poor connection

● Open or short to ground in power circuit.

● Open or short to ground in signal circuit.

● Faulty APS

● Faulty PCM

Enable Conditions

● Ignition "ON"

Threshold value

● APS2 < 0.125V

Diagnosis Time

● Continuous

MIL On Condition

● 1 Driving Cycle

Specification

Pedal Position

Output Voltage(V) [Vref = 5.0V]

APS1

APS2

C.T

0.7 ~ 0.8V

0.275 ~ 0.475V

W.O.T

3.8 ~ 4.4V

1.75 ~ 2.35V

Schematic Diagram
note
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Signal Waveform
Яндекс.Метрика