P135B GMC 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 GMC 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 GMC Description
What are the Possible Causes of the DTC P135B GMC?
- 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 GMC?
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 GMC 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 P135B GMC code?
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Need Help with the Code?
Get the P135B GMC code diagnosed by a professional: Find a repair shop in your area
Information for Specific GMC Models
- P135B 2014 GMC Sierra — Ignition Coil Supply Voltage Circuit Bank 2
- P135B 2015 GMC Sierra — Ignition Coil Supply Voltage Circuit Bank 2
- P135B 2016 GMC Sierra — Ignition Coil Supply Voltage Circuit Bank 2
- P135B 2017 GMC Sierra — Ignition Coil Supply Voltage Circuit Bank 2
- P135B 2018 GMC Sierra — Ignition Coil Supply Voltage Circuit Bank 2
Frequently Asked Questions about P135B GMC Code
1. What are common symptoms of OBDII code P135B GMC (Ignition Coil Supply Voltage Circuit Bank 2)?
Common symptoms include rough idling, engine misfires, loss of power, and illuminated check engine light.
2. What are possible causes of OBDII code P135B GMC?
Possible causes include faulty ignition coil, damaged wiring or connectors in the ignition coil circuit, issues with the ignition coil control module, or a problem with the power supply to the ignition coil.
3. How can I diagnose OBDII code P135B GMC?
Diagnosing this code typically involves using an OBDII scanner to retrieve the code, inspecting the ignition coil and related components for damage, testing the wiring and connectors for continuity, and checking the power supply to the ignition coil.
4. Can I drive with OBDII code P135B GMC active?
It is not recommended to drive with this code active, as it can lead to further engine damage and potential safety hazards. It is best to address the issue promptly.
5. How can I repair OBDII code P135B GMC?
Repairing this code may involve replacing a faulty ignition coil, repairing or replacing damaged wiring or connectors, or addressing any issues with the ignition coil control module. It is recommended to follow manufacturer-specific repair procedures.
6. Is it necessary to reset the OBDII code P135B GMC after repairs?
Yes, it is important to reset the code after making repairs to clear the fault memory and turn off the check engine light. This can be done using an OBDII scanner or by disconnecting the vehicle's battery for a few minutes.
7. Can a DIY enthusiast fix OBDII code P135B GMC?
Depending on their skill level and access to tools, a DIY enthusiast may be able to diagnose and repair this code. However, if unsure, it is recommended to seek professional help to avoid causing further damage.
8. Will OBDII code P135B GMC affect fuel efficiency?
Yes, this code can affect fuel efficiency due to engine misfires and poor combustion. Resolving the issue promptly can help improve fuel economy.
9. How much does it cost to repair OBDII code P135B GMC?
The cost of repairing this code can vary depending on the underlying cause, parts needed for replacement, and labor rates. It is advisable to obtain quotes from different mechanics or repair shops.
10. How common is OBDII code P135B GMC in GMC vehicles?
While not as common as some other OBDII codes, P135B GMC can still occur in GMC vehicles, particularly in models equipped with ignition coil supply voltage circuit bank 2. Regular maintenance and inspections can help prevent this issue.
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