P135B 2017 Chevrolet Silverado Code - Ignition Coil Supply Voltage Circuit Bank 2
Quick Answer
The P135B diagnostic trouble code (DTC) for a 2017 Chevrolet Silverado indicates a problem with the Ignition Coil Supply Voltage Circuit in Bank 2. Common causes include Faulty ignition coil, Wiring or connector issues in the ignition coil supply voltage circuit, Blown fuse related to the ignition system. 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
- P135B 2017 Chevrolet Silverado indicates Ignition Coil Supply Voltage Circuit Bank 2.
- Common causes
- Common causes include Faulty ignition coil, Wiring or connector issues in the ignition coil supply voltage circuit, Blown fuse related to the ignition system.
- 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 P135B 2017 Chevrolet Silverado Description
The P135B diagnostic trouble code (DTC) for a 2017 Chevrolet Silverado indicates a problem with the Ignition Coil Supply Voltage Circuit in Bank 2. The ignition coil is a crucial component in the vehicle's ignition system, responsible for converting the low voltage from the battery into the high voltage needed to ignite the air-fuel mixture in the engine cylinders. The ignition coil supply voltage circuit ensures that the ignition coil receives the correct voltage to function properly.
Common Causes of P135B 2017 Chevrolet Silverado
- Faulty ignition coil
- Wiring or connector issues in the ignition coil supply voltage circuit
- Blown fuse related to the ignition system
- Defective Engine Control Module (ECM)
- Poor electrical connection
Symptoms of P135B 2017 Chevrolet Silverado
- Engine misfires
- Rough idling
- Decreased fuel efficiency
- Difficulty starting the engine
- Illuminated check engine light
How to Fix P135B 2017 Chevrolet Silverado
- Perform a visual inspection of the wiring and connectors in the ignition coil supply voltage circuit.
- Test the ignition coil and replace it if found to be faulty.
- Check and replace any blown fuses related to the ignition system.
- Test the ECM for proper functioning and replace if necessary.
- Clear the DTC and perform a test drive to ensure the issue is resolved.
Cost to Fix P135B 2017 Chevrolet Silverado
The cost of repairing the Ignition Coil Supply Voltage Circuit issue can vary depending on the specific cause of the problem and the labor rates in your area. On average, you can expect to pay between $150 and $400 for parts and labor. Keep in mind that prices may be higher at dealerships or in metropolitan areas, while independent shops may offer more competitive rates. It's recommended to obtain quotes from different repair shops to find the best deal.
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Frequently Asked Questions about P135B 2017 Chevrolet Silverado Code
1. What does OBDII code P135B mean for a 2017 Chevrolet Silverado?
P135B indicates an issue with the ignition coil supply voltage circuit on Bank 2, meaning there may be a problem delivering proper voltage to the ignition coils on that side of the engine.
2. What are the common symptoms of code P135B in a 2017 Silverado?
Symptoms can include engine misfires, rough idling, reduced power, poor fuel efficiency, and the Check Engine Light being illuminated.
3. What causes the P135B code in a Chevrolet Silverado?
Potential causes include a faulty ignition coil, damaged wiring or connectors, a malfunctioning powertrain control module (PCM), or issues with the ignition coil supply voltage circuit.
4. Can a faulty ignition coil trigger the P135B code?
Yes, a defective ignition coil on Bank 2 can cause the P135B code by disrupting the proper supply of voltage.
5. How do you diagnose the P135B code?
Diagnosis involves scanning for additional codes, inspecting the ignition coil wiring and connectors for damage, testing the ignition coil supply voltage, and confirming proper operation of the PCM.
6. Is it safe to drive with the P135B code in my Silverado?
Driving with this code is not recommended, as it can lead to engine misfires, reduced performance, and potential engine damage if left unresolved.
7. How is the P135B code fixed in a 2017 Chevrolet Silverado?
Repairs may include replacing a faulty ignition coil, repairing or replacing damaged wiring or connectors, or reprogramming or replacing the PCM if necessary.
8. How much does it cost to repair the P135B code?
The cost depends on the root cause, ranging from $100-$300 for ignition coil replacement to $500 or more if the PCM requires replacement or reprogramming.
9. Can clearing the P135B code fix the problem?
Clearing the code will temporarily turn off the Check Engine Light, but the underlying issue must be resolved to prevent the code from returning.
10. What tools are needed to troubleshoot the P135B code?
You’ll need an OBDII scanner, a multimeter to test electrical circuits, and possibly wiring diagrams for the ignition coil system to properly diagnose the issue.
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