DTC Description

Checking output signals from APS 1 under detecting condition, if output signals are above the threshold, ECM/PCM sets P2123.

DTC Detecting Condition

Item

Detecting Condition

Possible Cause

DTC Strategy

APS1 signal check, high

1.

Poor connection

2.

Open or short to battery in signal circuit

3.

Faulty APS

Enable Conditions

Ignition "ON" or Engine running

Threshold Value

APS 1 voltage greater than 4.8 V

Diagnostic Time

0.14 sec.

MIL On Condition

5 sec.

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