TorqueMech OBD Code Guide

P0937 - Hydraulic Oil Temperature Sensor Circuit

The TCM detected an implausible hydraulic oil temperature signal, which can be caused by a failing sensor, wiring issue, or a real transmission temperature problem.

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Code Overview

The TCM detected an implausible hydraulic oil temperature signal, which can be caused by a failing sensor, wiring issue, or a real transmission temperature problem.

Common Causes

Faulty hydraulic oil temperature sensor
Wiring or connector damage
Poor sensor ground or reference
Actual transmission overheating

Diagnostic Steps

Check transmission fluid level and condition
Inspect the transmission connector and harness for oil intrusion or damage
Compare sensor readings to commanded values with a scan tool
Do not condemn the transmission before verifying power, ground, and reference signals

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