AutoCodes – Generic – U1207

U1207 Code - Lost Communication With Terrain Switch Bank Module

Quick Answer

The Diagnostic Trouble Code (DTC) sets when the Body Control Module (BCM) does not receive information from the Transfer Case Switch. Common causes include Faulty Transfer Case Switch, Transfer Case Switch harness is open or shorted, Transfer Case Switch 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: U1207 indicates Lost Communication With Terrain Switch Bank Module.
Common causes: Common causes include Faulty Transfer Case Switch, Transfer Case Switch harness is open or shorted, Transfer Case Switch 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 13,659

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 03, 2020

Description
Possible Causes
How To Fix
Cost to Diagnose
Comments
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Code U1207 Description

The Diagnostic Trouble Code (DTC) sets when the Body Control Module (BCM) does not receive information from the Transfer Case Switch.

OBDII Code U1207 - Lost Communication With Terrain Switch Bank Module - AutoCodes.com — U1207 Code - Lost Communication With Terrain Switch Bank Module

What does this mean?

What are the Possible Causes of the DTC U1207?

Faulty Transfer Case Switch
Transfer Case Switch harness is open or shorted
Transfer Case Switch circuit poor electrical connection

How to Fix the DTC U1207?

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 U1207 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 U1207 code?

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Information for Specific Makes

U1207 Chrysler — Lost Communication With Terrain Switch Bank Module
U1207 Dodge — Lost Communication With Terrain Switch Bank Module
U1207 Jeep — Lost Communication With Terrain Switch Bank Module
U1207 RAM — Lost Communication With Terrain Switch Bank Module

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.