AutoCodes – Chevrolet – U135C Chevrolet

U135C Chevrolet Code - Lost Communication With Start-Stop Capacitor Control Module

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 Start-Stop Capacitor Control Module, Start-Stop Capacitor Control Module harness is open or shorted, Start-Stop Capacitor 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: U135C Chevrolet indicates Lost Communication With Start-Stop Capacitor Control Module.
Common causes: Common causes include Faulty Start-Stop Capacitor Control Module, Start-Stop Capacitor Control Module harness is open or shorted, Start-Stop Capacitor 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 949

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 16, 2020

Description
Possible Causes
How To Fix
Cost to Diagnose
FAQs
Comments
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Code U135C 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 U135C Chevrolet - Lost Communication With Start-Stop Capacitor Control Module - AutoCodes.com — U135C Chevrolet Code - Lost Communication With Start-Stop Capacitor Control Module

What does this mean?

What are the Possible Causes of the DTC U135C Chevrolet?

Faulty Start-Stop Capacitor Control Module
Start-Stop Capacitor Control Module harness is open or shorted
Start-Stop Capacitor Control Module circuit poor electrical connection

How to Fix the DTC U135C 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 U135C 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 U135C Chevrolet Code

1. What are the common symptoms of OBDII code U135C in a Chevrolet related to the Lost Communication With Start-Stop Capacitor Control Module?

- Common symptoms include the start-stop system not functioning properly, the engine not shutting off when the vehicle comes to a stop, and warning lights on the dashboard.

2. What are the possible causes of OBDII code U135C in a Chevrolet indicating Lost Communication With Start-Stop Capacitor Control Module?

- Possible causes include a faulty start-stop capacitor control module, damaged wiring or connectors, low battery voltage, or a software glitch.

3. How can I diagnose the issue causing OBDII code U135C in my Chevrolet?

- To diagnose the issue, you can use an OBDII scanner to read the code and check for any other related codes. Additionally, inspect the wiring and connectors for any visible damage.

4. Can I continue driving my Chevrolet with the U135C OBDII code present?

- It is not recommended to continue driving with the U135C code present, as it can lead to further issues with the start-stop system and potentially affect the vehicle's performance.

5. How can I repair OBDII code U135C in my Chevrolet related to Lost Communication With Start-Stop Capacitor Control Module?

- Repairing the issue may involve replacing the start-stop capacitor control module, repairing any damaged wiring or connectors, ensuring proper battery voltage, and performing software updates if necessary.

6. Is it possible to reset the OBDII code U135C in a Chevrolet without repairing the underlying issue?

- While you can clear the code temporarily, it is crucial to address the root cause to prevent the code from reoccurring and ensure the proper functioning of the start-stop system.

7. Can a DIY enthusiast fix OBDII code U135C in a Chevrolet at home?

- Depending on your experience and tools available, DIY enthusiasts may be able to address simple causes like checking and repairing wiring or connectors. However, complex issues may require professional diagnosis and repair.

8. How much does it typically cost to repair OBDII code U135C in a Chevrolet at a dealership or repair shop?

- Repair costs can vary based on the exact cause of the issue and labor rates in your area. Generally, expect to pay for diagnostic time, parts replacement, and labor, which can range from a few hundred to over a thousand dollars.

9. Will fixing OBDII code U135C in my Chevrolet improve fuel efficiency or performance?

- Resolving the U135C code related to the start-stop system can help restore proper functionality, potentially improving fuel efficiency by allowing the system to operate as intended.

10. Are there any recalls or technical service bulletins related to OBDII code U135C in Chevrolet vehicles?

- It's advisable to check with Chevrolet or authorized service centers for any recalls or technical service bulletins related to the U135C code to see if there are known issues or solutions provided by the manufacturer.