AutoCodes – GMC – U15F0 GMC

U15F0 GMC Code - Radio Lost Communication With Radio/HVAC Controls/Radio Controls/Info Display Module On LIN Bus

Quick Answer

The Local Interconnect Network (LIN) Bus consists of a single wire with a transmission rate of 10.417 Kbit/s. Common causes include Faulty Radio/Heating, Ventilation, and Air Conditioning (HVAC) Controls/Radio Controls/Info Display Module, Radio/HVAC Controls/Radio Controls/Info Display Module harness is open or shorted, Radio/HVAC Controls/Radio Controls/Info Display 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: U15F0 GMC indicates Radio Lost Communication With Radio/HVAC Controls/Radio Controls/Info Display Module On LIN Bus.
Common causes: Common causes include Faulty Radio/Heating, Ventilation, and Air Conditioning (HVAC) Controls/Radio Controls/Info Display Module, Radio/HVAC Controls/Radio Controls/Info Display Module harness is open or shorted, Radio/HVAC Controls/Radio Controls/Info Display 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 1,343

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 Jun 04, 2020

Description
Possible Causes
How To Fix
Cost to Diagnose
FAQs
Comments
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Code U15F0 GMC Description

The Local Interconnect Network (LIN) Bus consists of a single wire with a transmission rate of 10.417 Kbit/s. The serial data is transmitted over a LIN circuit between a master control module and other LIN devices within a particular subsystem. If serial data communication is lost between any of the LIN devices on the LIN bus network, the master control module will set a no communication code against the non-communicating LIN device. The Diagnostic Trouble Code (DTC) will set when a supervised periodic message to the Radio from the Radio/Heating, Ventilation, and Air Conditioning (HVAC) Controls/Radio Controls/Info Display Module has not been received.

OBDII Code U15F0 GMC - Radio Lost Communication With Radio/HVAC Controls/Radio Controls/Info Display Module On LIN Bus - AutoCodes.com — U15F0 GMC Code - Radio Lost Communication With Radio/HVAC Controls/Radio Controls/Info Display Module On LIN Bus

What does this mean?

What are the Possible Causes of the DTC U15F0 GMC?

Faulty Radio/Heating, Ventilation, and Air Conditioning (HVAC) Controls/Radio Controls/Info Display Module
Radio/HVAC Controls/Radio Controls/Info Display Module harness is open or shorted
Radio/HVAC Controls/Radio Controls/Info Display Module circuit poor electrical connection
Faulty Radio

How to Fix the DTC U15F0 GMC?

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 U15F0 GMC 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 U15F0 GMC Code

What are common symptoms of OBDII code U15F0 GMC?

- Common symptoms include loss of communication with the radio, HVAC controls, radio controls, or info display module. This may result in the radio or HVAC system not functioning properly.

What are possible causes of OBDII code U15F0 GMC?

- The code U15F0 GMC is typically caused by issues with the LIN bus communication network, such as wiring faults, loose connections, or a faulty module.

How can I diagnose OBDII code U15F0 GMC?

- Diagnosis involves checking the wiring and connections related to the radio, HVAC controls, radio controls, and info display module. Using a scan tool to communicate with the affected modules can help pinpoint the issue.

What are some repair tips for OBDII code U15F0 GMC?

- Repair tips include inspecting the LIN bus communication network for any faults, ensuring proper connections, and replacing any faulty modules if necessary.

Can I drive my vehicle with OBDII code U15F0 GMC?

- It is not recommended to drive the vehicle with this code present, as it may lead to further issues with the radio, HVAC controls, or other affected systems.

How serious is OBDII code U15F0 GMC?

- While the code itself may not affect the drivability of the vehicle, it is important to address the underlying communication issue to prevent potential problems with the affected modules.

How much does it cost to repair OBDII code U15F0 GMC?

- The cost of repair can vary depending on the exact cause of the issue. It may involve simple fixes like reconnecting wires or more complex repairs such as module replacement.

Is OBDII code U15F0 GMC a common issue in GMC vehicles?

- This code can occur in GMC vehicles that have LIN bus communication networks connecting the radio, HVAC controls, and other related modules.

How can I prevent OBDII code U15F0 GMC from occurring again?

- To prevent the code from reoccurring, it is essential to ensure proper maintenance of the vehicle's electrical system, including regular inspections of wiring and connections.