AutoCodes – Generic – U1065

U1065 Code - Loss Of Instrument Panel Integration Module Communication

Quick Answer

Modules connected to the class 2 serial data circuit monitor for serial data communications during normal vehicle operation. Common causes include Faulty Instrument Panel Integration Module, Instrument Panel Integration Module harness is open or shorted, Instrument Panel Integration Module 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: U1065 indicates Loss Of Instrument Panel Integration Module Communication.
Common causes: Common causes include Faulty Instrument Panel Integration Module, Instrument Panel Integration Module harness is open or shorted, Instrument Panel Integration Module 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 6,798

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 Apr 22, 2020

Description
Possible Causes
How To Fix
Cost to Diagnose
Comments
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Code U1065 Description

Modules connected to the class 2 serial data circuit monitor for serial data communications during normal vehicle operation. Operating information and commands are exchanged among the modules. When a module receives a message for a critical operating parameter, the module records the identification number of the module which sent the message for State of Health monitoring. A critical operating parameter is one which, when not received, requires that the module use a default value for that parameter. When a module does not associate an identification number with at least one critical parameter within 5 seconds of beginning serial data communication, the Diagnostic Trouble Code (DTC) is set.

OBDII Code U1065 - Loss Of Instrument Panel Integration Module Communication - AutoCodes.com — U1065 Code - Loss Of Instrument Panel Integration Module Communication

What does this mean?

What are the Possible Causes of the DTC U1065?

Faulty Instrument Panel Integration Module
Instrument Panel Integration Module harness is open or shorted
Instrument Panel Integration Module circuit poor electrical connection

How to Fix the DTC U1065?

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 U1065 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 U1065 code?

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Information for Specific Makes

U1065 Buick — Loss Of Instrument Panel Integration Module Communication
U1065 Cadillac — Loss Of Instrument Panel Integration Module Communication
U1065 Chevrolet — Loss Of Instrument Panel Integration Module Communication
U1065 GMC — Loss Of Instrument Panel Integration Module Communication

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.