AutoCodes – Generic – P0860

P0860 Code - Gear Shift Control Module 'A' Communication Circuit

Quick Answer

The Engine Control Module (ECM) monitors the Gear Shift Control Module. Common causes include Faulty Gear Shift Control Module 'A', Gear Shift Control Module 'A' harness is open or shorted, Gear Shift Control Module 'A' circuit poor electrical connection. Severity is High - diagnose this code as soon as possible. Driving is not recommended if the warning light is flashing, the engine runs poorly, or safety-related symptoms are present.

What it means: P0860 indicates Gear Shift Control Module 'A' Communication Circuit.
Common causes: Common causes include Faulty Gear Shift Control Module 'A', Gear Shift Control Module 'A' harness is open or shorted, Gear Shift Control Module 'A' circuit poor electrical connection.
Severity: High - diagnose this code as soon as possible.
Can I drive?: Driving is not recommended if the warning light is flashing, the engine runs poorly, or safety-related symptoms are present.

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Code Popularity 17,937

How popular is this code, among other codes? Low

Repair Importance Level

Urgent (Diagnose now) (3 / 3)

Repair Difficulty Level

Advanced (Pro) (3 / 3)

What is this?

Table of contents Created and updated by William Orellana on May 11, 2019

Description
Possible Causes
How To Fix
Cost to Diagnose
Comments
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Code P0860 Description

The Engine Control Module (ECM) monitors the Gear Shift Control Module. The ECM sets the OBDII when there is a problem communicating with the Gear Shift Control Module.

OBDII Code P0860 - Gear Shift Control Module 'A' Communication Circuit - AutoCodes.com — P0860 Code - Gear Shift Control Module 'A' Communication Circuit

What does this mean?

What are the Possible Causes of the DTC P0860?

Faulty Gear Shift Control Module 'A'
Gear Shift Control Module 'A' harness is open or shorted
Gear Shift Control Module 'A' circuit poor electrical connection

How to Fix the DTC P0860?

Review the 'Possible Causes' above and visually examine the corresponding wiring harness and connectors. Check for damaged components and inspect connector pins for signs of being broken, bent, pushed out, or corroded.

What is the Cost to Diagnose the Code?

Labor: 1.0

To diagnose the P0860 code, it typically requires 1.0 hour of labor. Rates vary by location, vehicle, and shop. Many shops charge between $80–$150 per hour; dealerships and metro areas may be higher, independents may be lower.

Need more information about the P0860 code?

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Information for Specific Makes

P0860 Dodge — Gear Shift Control Module 'A' Communication Circuit

About the author: William Orellana is a Master Mechanic and Mechanical Engineer with over 30 years of experience diagnosing and repairing vehicles. Learn more about his background.