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P0854

Overview

Code

P0854

Code Type

P

Code Class

P0

System

Transmission

Severity Level

High

Emissions Related

true

Drivability Impact

Major

Diagnostic Protocol

OBD2

Freeze Frame Useful

true

Code Definition

Diagnostic trouble code P0854 indicates a malfunction in the transmission control module (TCM) range sensor

Symptoms

Erratic shifting Transmission failure

Overview applies to this diagnostic code.

Affected Systems

On This Page

  • Code Definition

  • Symptoms

  • Affected Systems

  • Possible Causes

  • Diagnostic Steps

  • Drive Safety Notes​

More Resources

Transmission control module (TCM) range sensor

Possible Causes

Faulty TCM range sensor Wiring or electrical issues

Diagnostic Steps

1 Inspect TCM range sensor2 Test sensor functionality

Drive Safety Notes

A malfunction in the TCM range sensor can affect transmission shifting and drivability

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