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HOMESERVICE MANUALSCHEVROLET2003TRAILBLAZER 4.2 S, 4WDREPAIR AND DIAGNOSISEXTERNAL PAGESDIFFERENT VARIANT/TRIMSECTION 2 (ENGINE CONTROL SYSTEM - SELF-DIAGNOSTICS - 5.3L)DIAGNOSTIC TESTSDTC P2125: APP SENSOR 2 CIRCUIT MALFUNCTIONDESCRIPTION
2003 Chevrolet TrailBlazer 4.2 S, 4WD

DTC P2125: App Sensor 2 Circuit Malfunction: Description

2003 Chevrolet TrailBlazer 4.2 S, 4WDSECTION Description
WARNING: This page is about a different variant/trim than selected.

The Accelerator Pedal Position (APP) sensor 1 is a potentiometer type sensor with the following 3 circuits:

  • A 5-volt reference circuit.
  • A low reference circuit.
  • A signal circuit.
The control module provides the APP sensor a 5-volt reference circuit and a low reference circuit. The APP sensor then provides the control module a signal voltage proportional to pedal movement. The APP sensor 1 signal voltage is low at rest and increases as the pedal is depressed. When the control module detects that the APP sensor 2 signal or the APP sensor 5-volt reference voltage is outside the predetermined range, this DTC sets.

RENDER: 1.0x

NO RELATED

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