AutoCodes – Chevrolet – U135D Chevrolet

U135D Chevrolet Code - Lost Communication With Transmission Control Module On Chassis Control Module LIN Bus 2

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 Transmission Control Module, Transmission Control Module harness is open or shorted, Transmission Control 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: U135D Chevrolet indicates Lost Communication With Transmission Control Module On Chassis Control Module LIN Bus 2.
Common causes: Common causes include Faulty Transmission Control Module, Transmission Control Module harness is open or shorted, Transmission Control 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 467

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 17, 2020

Description
Possible Causes
How To Fix
Cost to Diagnose
FAQs
Comments
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Code U135D Chevrolet 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) sets when a supervised periodic message that includes the transmitter device availability has not been received.

OBDII Code U135D Chevrolet - Lost Communication With Transmission Control Module On Chassis Control Module LIN Bus 2 - AutoCodes.com — U135D Chevrolet Code - Lost Communication With Transmission Control Module On Chassis Control Module LIN Bus 2

What does this mean?

What are the Possible Causes of the DTC U135D Chevrolet?

Faulty Transmission Control Module
Transmission Control Module harness is open or shorted
Transmission Control Module circuit poor electrical connection

How to Fix the DTC U135D Chevrolet?

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 U135D Chevrolet 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 U135D Chevrolet Code

1. What are the common symptoms of OBDII code U135D in a Chevrolet related to the Lost Communication With Transmission Control Module On Chassis Control Module LIN Bus 2?

- Common symptoms include transmission shifting issues, illuminated transmission warning lights, and loss of communication with the transmission control module.

2. What are some possible causes of the U135D code in a Chevrolet?

- Possible causes may include a faulty transmission control module, damaged wiring or connectors in the LIN bus network, or issues with the chassis control module.

3. How can I diagnose the U135D code in my Chevrolet?

- Diagnosis typically involves using a scan tool to communicate with the affected modules, checking for other related codes, and performing a thorough inspection of the LIN bus connections.

4. Can I still drive my Chevrolet with the U135D code present?

- It is not recommended to drive the vehicle with the U135D code as it can lead to unpredictable transmission behavior and potential safety hazards.

5. How can I repair the U135D code in my Chevrolet?

- Repair options may include repairing or replacing damaged wiring in the LIN bus network, resetting the modules, or replacing faulty control modules as needed.

6. Is it possible to reset the U135D code in my Chevrolet using a simple OBDII scanner?

- While you can attempt to clear the code with an OBDII scanner, it is important to address the underlying issue causing the code to prevent it from reoccurring.

7. Are there any DIY tips for troubleshooting the U135D code in a Chevrolet?

- DIY tips may include visually inspecting the wiring harness for any visible damage, checking the connectors for corrosion, and ensuring all connections are secure.

8. How much does it typically cost to repair the U135D code in a Chevrolet at a dealership or mechanic?

- Repair costs can vary depending on the specific issue causing the code, but it is advisable to consult with a professional technician for an accurate diagnosis and repair estimate.

9. Can extreme weather conditions or rough driving cause the U135D code to trigger in a Chevrolet?

- While extreme conditions may not directly cause the code, they can exacerbate existing issues with the communication network or control modules, leading to the U135D code being triggered.

10. Is the U135D code specific to Chevrolet vehicles, or can it occur in other car makes and models?

- The U135D code related to Lost Communication With Transmission Control Module On Chassis Control Module LIN Bus 2 can occur in other vehicle makes and models that utilize similar communication systems and components.