P135B 2015 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 2015 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 2015 Chevrolet Silverado Description
What are the Possible Causes of the DTC P135B 2015 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 2015 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 2015 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 2015 Chevrolet Silverado Code
1. What does the OBDII code P135B mean on a 2015 Chevrolet Silverado?
The P135B code indicates an issue with the ignition coil supply voltage circuit on Bank 2, meaning the power supply or control signal to the ignition coils on that side of the engine is compromised.
2. What are the common symptoms of the P135B code in a 2015 Chevrolet Silverado?
Symptoms may include a misfiring engine, reduced power, rough idling, hesitation during acceleration, and the Check Engine Light being illuminated.
3. What causes the P135B code to appear on a 2015 Chevrolet Silverado?
Common causes include a faulty ignition coil, damaged wiring or connectors in the ignition coil circuit, a bad ignition control module, or a failing PCM (powertrain control module).
4. Is it safe to drive with the P135B code on a 2015 Chevrolet Silverado?
It’s not recommended to drive for long periods with this code, as it can lead to engine misfires, poor performance, and potential damage to the catalytic converter.
5. How do you diagnose the P135B code in a 2015 Chevrolet Silverado?
Diagnostics typically involve checking the ignition coil on Bank 2, inspecting the wiring and connectors for damage or corrosion, testing the ignition control module, and using a multimeter to verify voltage and continuity in the circuit.
6. Can a faulty ignition coil trigger the P135B code on a 2015 Chevrolet Silverado?
Yes, a faulty ignition coil can cause this code by disrupting the proper voltage supply or signal in the circuit.
7. What repairs are needed to fix the P135B code on a 2015 Chevrolet Silverado?
Repairs may include replacing the faulty ignition coil, repairing or replacing damaged wiring or connectors, or, in rare cases, replacing the ignition control module or PCM.
8. How much does it cost to fix the P135B code on a 2015 Chevrolet Silverado?
The cost varies depending on the specific issue but can range from $100 to $300 for ignition coil replacement or wiring repairs, with higher costs if the PCM or ignition control module needs replacement.
9. Can a weak battery cause the P135B code on a 2015 Chevrolet Silverado?
While uncommon, a weak or failing battery can contribute to voltage-related issues that might trigger this code, so it’s worth checking the battery and charging system.
10. How can I prevent the P135B code from recurring on my 2015 Chevrolet Silverado?
Regular maintenance of the ignition system, including inspecting and replacing ignition coils and wiring as needed, can help prevent this code from reappearing.
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