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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 P0120: TP SENSOR CIRCUITDESCRIPTION
2003 Chevrolet TrailBlazer 4.2 S, 4WD

DTC P0120: TP Sensor Circuit: Description

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

The Throttle Position (TP) sensor 1 is a potentiometer type sensor with 3 circuits:

  • A 5-volt reference circuit.
  • A low reference circuit.
  • A signal circuit.
The TP sensor is used to determine the throttle plate angle for various engine management systems. The control module provides the TP sensor a 5-volt reference circuit and a low reference circuit. The TP sensor then provides the control module a signal and increases as the throttle opens. When the control module detects that the TP sensor 1 signal or TP sensor 5-volt reference voltage is outside the predetermined range, this DTC sets.

RENDER: 1.0x

NO RELATED

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