AutoCodes – Pontiac – U1153 Pontiac

U1153 Pontiac Code - Lost Communication With Climate Control Panel

Quick Answer

Modules connected to the class 2 serial data circuit monitor for serial data communications during normal vehicle operation. Common causes include Faulty Climate Control Panel, Climate Control Panel harness is open or shorted, Climate Control Panel 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: U1153 Pontiac indicates Lost Communication With Climate Control Panel.
Common causes: Common causes include Faulty Climate Control Panel, Climate Control Panel harness is open or shorted, Climate Control Panel 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 1,325

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 U1153 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) U1153 is set.

OBDII Code U1153 Pontiac - Lost Communication With Climate Control Panel - AutoCodes.com — U1153 Pontiac Code - Lost Communication With Climate Control Panel

What does this mean?

What are the Possible Causes of the DTC U1153 Pontiac?

Faulty Climate Control Panel
Climate Control Panel harness is open or shorted
Climate Control Panel circuit poor electrical connection

How to Fix the DTC U1153 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 U1153 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 U1153 Pontiac Code

1. What are common symptoms of the OBDII code U1153 in a Pontiac related to lost communication with the climate control panel?

- Common symptoms include erratic climate control operation, lack of response from control buttons, and loss of climate control functionality.

2. What are some possible causes of the U1153 code in a Pontiac indicating a communication issue with the climate control panel?

- Possible causes include a faulty climate control module, damaged wiring or connectors, a blown fuse, or a malfunctioning body control module.

3. How can I diagnose the U1153 code in my Pontiac if I suspect a communication problem with the climate control panel?

- A thorough inspection of the climate control module, wiring, and connectors is recommended. Checking for blown fuses and performing a scan tool diagnostic to assess communication errors can help pinpoint the issue.

4. Is it safe to continue driving my Pontiac with the U1153 code related to lost communication with the climate control panel?

- It is generally safe to drive the vehicle, but without functioning climate control, comfort may be compromised. It is recommended to address the issue promptly to avoid further inconvenience.

5. Can I repair the U1153 code in my Pontiac indicating lost communication with the climate control panel on my own?

- Depending on your skills and tools, you may be able to address the issue yourself by checking for loose connections, replacing fuses, or accessing and testing the climate control module. However, professional assistance may be necessary for more complex repairs.

6. Are there any DIY tips for troubleshooting and potentially fixing the U1153 code in a Pontiac related to the climate control panel communication problem?

- DIY tips include visually inspecting wiring for damage, ensuring connectors are secure, checking and replacing blown fuses, and performing a reset on the climate control module if applicable.

7. How much can I expect to pay to repair the U1153 code in my Pontiac associated with lost communication with the climate control panel?

- Repair costs can vary depending on the exact cause of the issue. Simple fixes like replacing fuses may be inexpensive, while more complex repairs involving module replacement or wiring repairs could be more costly.

8. Will resetting the ECU or disconnecting the battery resolve the U1153 code related to communication loss with the climate control panel in my Pontiac?

- Resetting the ECU or disconnecting the battery may temporarily clear the code, but if the underlying issue causing the communication problem persists, the code is likely to reappear. It's recommended to diagnose and address the root cause of the problem.

9. Can extreme temperatures or environmental factors contribute to triggering the U1153 code in a Pontiac due to communication issues with the climate control panel?

- Extreme temperatures or environmental factors may exacerbate existing communication issues, leading to the U1153 code. Ensuring proper insulation and protection for wiring and components can help mitigate such problems.

10. Is the U1153 code specific to Pontiac vehicles, or can it occur in other car makes and models with similar climate control systems?

- While the U1153 code is specific to Pontiac vehicles, similar communication issues with the climate control panel can occur in other car makes and models equipped with comparable control systems, potentially triggering similar diagnostic trouble codes.