AutoCodes – Pontiac – U1064 Pontiac

U1064 Pontiac Code - Lost Communications With Body Control Module

Quick Answer

Modules connected to the class 2 serial data circuit monitor for serial data communications during normal vehicle operation. Common causes include Faulty Body Control Module (BCM), Body Control Module (BCM) harness is open or shorted, Body Control Module (BCM) 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: U1064 Pontiac indicates Lost Communications With Body Control Module.
Common causes: Common causes include Faulty Body Control Module (BCM), Body Control Module (BCM) harness is open or shorted, Body Control Module (BCM) 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 2,124

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 24, 2020

Description
Possible Causes
How To Fix
Cost to Diagnose
FAQs
Comments
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Code U1064 Pontiac 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 the state of health monitoring/node alive messages. A critical operating parameter is one which, when not received, requires that the module use a default value for that parameter. Once an identification number is learned by a module, it will monitor for that module node alive message. Each module on the class 2 serial data circuit is required to send a Node Alive message every 2 seconds. When no message is detected from a learned identification number for 5 seconds, a Diagnostic Trouble Code (DTC) U1064 is set.

OBDII Code U1064 Pontiac - Lost Communications With Body Control Module - AutoCodes.com — U1064 Pontiac Code - Lost Communications With Body Control Module

What does this mean?

What are the Possible Causes of the DTC U1064 Pontiac?

Faulty Body Control Module (BCM)
Body Control Module (BCM) harness is open or shorted
Body Control Module (BCM) circuit poor electrical connection

How to Fix the DTC U1064 Pontiac?

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 U1064 Pontiac 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.

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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.

Frequently Asked Questions about U1064 Pontiac Code

1. What are the common symptoms of OBDII code U1064 Pontiac (Lost Communications With Body Control Module)?

- Common symptoms include issues with power windows, interior lights not working, malfunctioning door locks, and issues with the radio or other interior controls.

2. What are the possible causes of the U1064 code in a Pontiac?

- The U1064 code can be caused by a faulty body control module (BCM), wiring issues, loose connections, or a malfunction in the communication network.

3. How can I diagnose the U1064 code in my Pontiac?

- Diagnosing the U1064 code usually involves using an OBDII scanner to retrieve the code and checking the communication network, BCM connections, and wiring for any issues.

4. Can I still drive my Pontiac with the U1064 code present?

- It is not recommended to drive your Pontiac with the U1064 code present, as it can lead to further electrical issues and potential safety concerns.

5. How can I repair the U1064 code in my Pontiac?

- Repairing the U1064 code typically involves addressing the root cause, such as replacing the faulty BCM, repairing wiring issues, or fixing loose connections.

6. Should I attempt to reset the U1064 code myself?

- While you can attempt to clear the U1064 code using an OBDII scanner, it is important to address the underlying issue causing the code to prevent it from coming back.

7. How much does it cost to fix the U1064 code in a Pontiac?

- The cost of fixing the U1064 code can vary depending on the root cause of the issue, but it may involve replacing the BCM, which can range from $200 to $600 including parts and labor.

8. Can a DIY enthusiast repair the U1064 code in a Pontiac?

- DIY enthusiasts with automotive repair experience may be able to diagnose and repair the U1064 code themselves, but it is recommended to have it checked by a professional if unsure.

9. Will the U1064 code cause any long-term damage to my Pontiac?

- Ignoring the U1064 code can lead to further electrical issues and potential damage to other components in your Pontiac, so it is best to address it promptly.

10. How long does it take to fix the U1064 code in a Pontiac?

- The time to fix the U1064 code can vary depending on the specific issue causing it, but it may take a few hours to a full day for diagnosis and repair.