DTC P1115 Engine Coolant Temperature (ECT) Sensor Circuit Intermittent High Voltage

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    Circuit Description

    The Engine Coolant Temperature (ECT) sensor is a thermistor mounted in the engine coolant stream. The PCM applies a voltage (about 5.0 volts) through a pull up resistor to the ECT signal circuit. When the engine coolant is cold, the sens...

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    Service Manual Table of Contents

    Document Tags

    Document Title: DTC P1115 Engine Coolant Temperature (ECT) Sensor Circuit Intermittent High Voltage

    circuit

    engine

    coolant

    temperature

    sensor

    voltage

    signal

    high

    conditions

    records

    data

    clear

    scan

    tool

    info

    diagnostic

    check

    poor

    connection

    harness

    terminal

    wiring

    intermittent

    system

    ground

    problem

    found

    repair

    procedures

    electrical

    diagnosis

    signal circuit

    signal voltage

    sensor ground

    ground circuit

    circuit terminal

    terminal connection

    repair repair

    diagnosis problem

    using scan tool

    powertrain board diagnostic

    check poor sensor

    poor sensor ground

    sensor ground circuit

    ground circuit terminal

    circuit terminal connection

    found repair repair

    repair repair procedures

    diagnosis problem found