P135B 2017 Chevrolet Silverado Code - Ignition Coil Supply Voltage Circuit Bank 2
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
- P135B 2017 Chevrolet Silverado indicates Ignition Coil Supply Voltage Circuit Bank 2.
- 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.
Code P135B 2017 Chevrolet Silverado Description
What are the Possible Causes of the DTC P135B 2017 Chevrolet Silverado?
- 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 P135B 2017 Chevrolet Silverado?
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 P135B 2017 Chevrolet Silverado 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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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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