P135A 2017 Chevrolet Silverado Code - Ignition Coil Supply Voltage Circuit Bank 1
Quick Answer
The P135A code for a 2017 Chevrolet Silverado indicates a problem with the Ignition Coil Supply Voltage Circuit in Bank 1. Common causes include Faulty ignition coil, Wiring or connection issues in the ignition coil supply voltage circuit, Defective ignition control module. 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 2017 Chevrolet Silverado indicates Ignition Coil Supply Voltage Circuit Bank 1.
- Common causes
- Common causes include Faulty ignition coil, Wiring or connection issues in the ignition coil supply voltage circuit, Defective ignition control module.
- 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.
Fix Your Car Smarter
Try the New AutoCodes App!
Get complete OBDII diagnostics, repair solutions, and cost estimates, plus AI chat support on demand.
Code P135A 2017 Chevrolet Silverado Description
The P135A code for a 2017 Chevrolet Silverado indicates a problem with the Ignition Coil Supply Voltage Circuit in Bank 1. This circuit is responsible for providing power to the ignition coils, which are essential components for the ignition system. When this circuit malfunctions, it can lead to misfires, rough idling, and overall poor engine performance. Ignition coils play a crucial role in generating the high voltage needed to ignite the air-fuel mixture in the engine cylinders, so any issues with their power supply can directly impact the vehicle's drivability.
Common Causes of P135A 2017 Chevrolet Silverado
- Faulty ignition coil
- Wiring or connection issues in the ignition coil supply voltage circuit
- Defective ignition control module
- Electrical system issues
- Engine overheating leading to damage to ignition components
Symptoms of P135A 2017 Chevrolet Silverado
- Engine misfires
- Rough idling or stalling
- Decreased fuel efficiency
- Loss of power
- Illuminated check engine light
How to Fix P135A 2017 Chevrolet Silverado
- Use an OBD-II scanner to verify the P135A code and diagnose the specific issue.
- Inspect the ignition coils, wiring, and connections in Bank 1 for any visible damage or corrosion.
- Test the ignition coil supply voltage circuit for continuity and proper voltage levels.
- Replace any faulty ignition coils, repair damaged wiring or connections, and address any underlying electrical issues.
- Clear the code, reset the vehicle's computer, and test drive to ensure the issue has been resolved.
Cost to Fix P135A 2017 Chevrolet Silverado
The cost to repair the Ignition Coil Supply Voltage Circuit in Bank 1 can vary depending on the specific cause of the issue and whether any parts need to be replaced. On average, the repair costs can range from $100 to $500, including parts and labor. Keep in mind that diagnostic time and labor rates can vary, so it's advisable to get quotes from local auto repair shops for a more accurate estimate.
Need more information about the P135A 2017 Chevrolet Silverado code?
Need more information on how to fix the P135A 2017 Chevrolet Silverado code? Get Access to Factory Service Manuals
Need Help with the Code?
Get the P135A 2017 Chevrolet Silverado code diagnosed by a professional: Find a repair shop in your area
Frequently Asked Questions about P135A 2017 Chevrolet Silverado Code
1. What does the OBDII code P135A mean on a 2017 Chevrolet Silverado?
P135A indicates an issue with the ignition coil supply voltage circuit on Bank 1, meaning the voltage to one or more ignition coils is outside the expected range.
2. What are the common symptoms of P135A in a 2017 Chevrolet Silverado?
Symptoms may include engine misfires, rough idling, reduced power, poor fuel efficiency, and an illuminated check engine light.
3. What causes the P135A code to appear on a 2017 Chevrolet Silverado?
Common causes include a faulty ignition coil, damaged wiring or connectors in the coil circuit, a failing PCM (Powertrain Control Module), or a blown fuse supplying power to the ignition coils.
4. How can I diagnose the P135A code on my Silverado?
Start by checking for visible damage to the ignition coil wiring and connectors, test the ignition coil with a multimeter, and inspect fuses related to the coil circuit. If no issues are found, further testing of the PCM may be needed.
5. Can a bad ignition coil cause the P135A code?
Yes, a malfunctioning ignition coil can disrupt the supply voltage and trigger the P135A code.
6. Is it safe to drive my 2017 Silverado with the P135A code?
It’s not recommended to drive for extended periods, as this code can cause misfires and potentially damage the catalytic converter or other engine components.
7. How do I fix the P135A code on a 2017 Chevrolet Silverado?
Repairs may involve replacing a faulty ignition coil, repairing or replacing damaged wiring, securing loose connectors, or replacing a blown fuse. In some cases, reprogramming or replacing the PCM may be necessary.
8. Which bank is referred to by Bank 1 in the P135A code?
Bank 1 refers to the side of the engine containing cylinder 1. On V8 engines in the Silverado, this is typically the driver’s side.
9. Can low battery voltage cause the P135A code?
Yes, low battery voltage or charging system issues can affect the ignition coil supply voltage and trigger this code.
10. How much does it cost to repair the P135A code on a 2017 Chevrolet Silverado?
Costs vary depending on the issue; replacing an ignition coil typically costs $100–$300, while wiring or PCM repairs can range higher depending on labor and parts.
Discuss the causes and fixes for P135A 2017 Chevrolet Silverado OBDII Code
Code P135A 2017 Chevrolet Silverado comments
No comments found for this page.
Fix Your Car Smarter
Try the New AutoCodes App!
Get complete OBDII diagnostics, repair solutions, and cost estimates, plus AI chat support on demand.