AutoCodes – Chevrolet – P135A Chevrolet

P135A Chevrolet Code - Ignition Coil Supply Voltage Circuit Bank 1

Quick Answer

The ignition system uses an individual ignition coil for each cylinder. Common causes include Blown Ignition Coil Fuse, Ignition Coil Fuse harness is open or shorted, Ignition Coil Fuse 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: P135A Chevrolet indicates Ignition Coil Supply Voltage Circuit Bank 1.
Common causes: Common causes include Blown Ignition Coil Fuse, Ignition Coil Fuse harness is open or shorted, Ignition Coil Fuse 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 16,256

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 Aug 13, 2022

Description
Possible Causes
How To Fix
Cost to Diagnose
FAQs
Comments
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Code P135A Chevrolet Description

The ignition system uses an individual ignition coil for each cylinder. The Engine Control Module (ECM) monitors the ignition voltage from the fuse to the individual coils. The Diagnostic Trouble Code (DTC) will be set if the ECM detects less than 2.5 V on the ignition coil supply voltage circuit.

OBDII Code P135A Chevrolet - Ignition Coil Supply Voltage Circuit Bank 1 - AutoCodes.com — P135A Chevrolet Code - Ignition Coil Supply Voltage Circuit Bank 1

What does this mean?

What are the Possible Causes of the DTC P135A Chevrolet?

Blown Ignition Coil Fuse
Ignition Coil Fuse harness is open or shorted
Ignition Coil Fuse circuit poor electrical connection
Faulty Engine Control Module (ECM)

How to Fix the DTC P135A 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 P135A 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.

Need more information about the P135A Chevrolet code?

Need more information on how to fix the P135A Chevrolet code? Get Access to Factory Service Manuals

Need Help with the Code?

Get the P135A Chevrolet code diagnosed by a professional: Find a repair shop in your area

Information for Specific Chevrolet Models

P135A 2014 Chevrolet Silverado — Ignition Coil Supply Voltage Circuit Bank 1
P135A 2015 Chevrolet Silverado — Ignition Coil Supply Voltage Circuit Bank 1
P135A 2016 Chevrolet Silverado — Ignition Coil Supply Voltage Circuit Bank 1
P135A 2017 Chevrolet Silverado — Ignition Coil Supply Voltage Circuit Bank 1
P135A 2018 Chevrolet Silverado — Ignition Coil Supply Voltage Circuit Bank 1

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 P135A Chevrolet Code

1. What are common symptoms of OBDII code P135A in a Chevrolet related to the Ignition Coil Supply Voltage Circuit Bank 1?

- Common symptoms include engine misfires, rough idling, lack of power, and illuminated Check Engine Light.

2. What are the possible causes of OBDII code P135A in a Chevrolet related to the Ignition Coil Supply Voltage Circuit Bank 1?

- Possible causes include a faulty ignition coil, damaged wiring or connectors, a defective powertrain control module (PCM), or a weak battery.

3. How can I diagnose the issue causing OBDII code P135A in a Chevrolet related to the Ignition Coil Supply Voltage Circuit Bank 1?

- You can diagnose the issue by using a scan tool to read the trouble codes, performing a visual inspection of the ignition coil and its connections, and testing the voltage supply to the coil.

4. Can I still drive my Chevrolet with OBDII code P135A related to the Ignition Coil Supply Voltage Circuit Bank 1?

- It is not recommended to drive your vehicle with this code as it can lead to further engine damage and reduced performance.

5. How can I repair OBDII code P135A in a Chevrolet related to the Ignition Coil Supply Voltage Circuit Bank 1?

- Repair steps may include replacing the faulty ignition coil, repairing damaged wiring or connectors, resetting the PCM, and ensuring a strong electrical connection.

6. Is it possible to clear OBDII code P135A in a Chevrolet related to the Ignition Coil Supply Voltage Circuit Bank 1 without fixing the issue?

- While you can clear the code temporarily, it is important to address the underlying problem to prevent further issues down the road.

7. How much does it typically cost to repair OBDII code P135A in a Chevrolet related to the Ignition Coil Supply Voltage Circuit Bank 1?

- The cost can vary depending on the exact cause of the issue, but it may range from $100 to $300 for parts and labor.

8. Are there any preventive measures to avoid OBDII code P135A in a Chevrolet related to the Ignition Coil Supply Voltage Circuit Bank 1?

- Regularly inspecting and maintaining your ignition system, ensuring proper battery health, and addressing any warning signs promptly can help prevent this issue.