DTC P1691

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Circuit Description

Schematic

The coolant temperature gauge is directly controlled by the PCM using a pulse width modulated (PWM) signal, based on information from the engine coolant temperature (ECT) sensor. The PCM uses the inputs from the ECT to control fuel, the A/C cooling fan, and the low coolant/...

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Service Manual Table of Contents

Document Tags

Document Title: DTC P1691

circuit

coolant

temperature

gauge

short

coolant gauge

coolant gauge circuit