DTC Description

If output signal difference between APS 1 and APS 2 is detected more than 4.5%, ECM sets DTC P2138 and turns the MIL on.

DTC Detecting Condition

Item

Detecting Condition

Possible Cause

DTC Strategy

Synchronization of signal monitoring

1.

Poor connector connection

2.

Short or open in signal circuit

3.

Faulty APS

4.

Faulty ECM

Enable Condition

Ignition switch "ON"

Threshold Value

Deviation of APS1 voltage *0.5 - APS2 voltage is at between 0.092V - 0.111V

Diagnosis Time

0.16 sec.

MIL ON Condition

5 sec.

Яндекс.Метрика