P135B Chevrolet Code - Ignition Coil Supply Voltage Circuit Bank 2
Quick Answer
The P135B diagnostic trouble code for Chevrolet vehicles specifically relates to the Ignition Coil Supply Voltage Circuit for Bank 2. Common causes include Faulty ignition coil, Wiring issues in the ignition coil circuit, Malfunctioning engine control module (ECM). 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 Chevrolet indicates Ignition Coil Supply Voltage Circuit Bank 2.
- Common causes
- Common causes include Faulty ignition coil, Wiring issues in the ignition coil circuit, Malfunctioning engine control module (ECM).
- 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 Chevrolet Description
The P135B diagnostic trouble code for Chevrolet vehicles specifically relates to the Ignition Coil Supply Voltage Circuit for Bank 2. This code indicates that there is a problem with the voltage supply to the ignition coil in the second bank of the engine. The ignition coil is a crucial component of the ignition system, responsible for converting the low voltage from the battery into the high voltage needed to create a spark in the spark plugs. If there is an issue with the supply voltage to the ignition coil, it can lead to misfires, poor engine performance, and potentially even engine damage if left unresolved.
Common Causes of P135B Chevrolet
- Faulty ignition coil
- Wiring issues in the ignition coil circuit
- Malfunctioning engine control module (ECM)
- Poor power supply to the ignition system
- Corrosion or loose connections in the electrical system
Symptoms of P135B Chevrolet
- Rough idling
- Hesitation during acceleration
- Decreased fuel efficiency
- Engine stalling
- Illumination of the Check Engine Light
How to Fix P135B Chevrolet
- Begin by performing a visual inspection of the ignition coil, wiring, and connections for any visible damage or corrosion.
- Use a multimeter to test the voltage supply to the ignition coil in Bank 2 and ensure it is within the manufacturer's specified range.
- If the voltage supply is outside of the expected range, troubleshoot the wiring and connections to identify and repair any issues.
- Test the ignition coil itself for proper functioning and replace it if necessary.
- Clear the diagnostic trouble codes from the ECM and test drive the vehicle to ensure the issue has been resolved.
Cost to Fix P135B Chevrolet
The cost of repairing the Ignition Coil Supply Voltage Circuit for Bank 2 can vary depending on the specific cause of the issue and the necessary repairs. On average, the cost of replacing an ignition coil ranges from $100 to $300, including parts and labor. Additional costs may be incurred if wiring repairs or ECM diagnostics are required. It's important to note that labor rates at auto repair shops can vary, so it's recommended to obtain quotes from multiple shops in your area for a more accurate estimate.
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Information for Specific Chevrolet Models
- P135B 2014 Chevrolet Silverado — Ignition Coil Supply Voltage Circuit Bank 2
- P135B 2015 Chevrolet Silverado — Ignition Coil Supply Voltage Circuit Bank 2
- P135B 2016 Chevrolet Silverado — Ignition Coil Supply Voltage Circuit Bank 2
- P135B 2017 Chevrolet Silverado — Ignition Coil Supply Voltage Circuit Bank 2
- P135B 2018 Chevrolet Silverado — Ignition Coil Supply Voltage Circuit Bank 2
Frequently Asked Questions about P135B Chevrolet Code
1. What are the common symptoms of OBDII code P135B in a Chevrolet related to the Ignition Coil Supply Voltage Circuit Bank 2?
- Common symptoms include rough idling, engine misfires, lack of power, and illuminated Check Engine Light.
2. What are the possible causes of OBDII code P135B in a Chevrolet indicating an issue with the Ignition Coil Supply Voltage Circuit Bank 2?
- Potential causes include a faulty ignition coil, damaged wiring or connectors, a defective ignition control module, or a problem with the engine's computer.
3. How can I diagnose the Ignition Coil Supply Voltage Circuit Bank 2 issue triggering OBDII code P135B in my Chevrolet?
- Use a diagnostic scanner to read the code and perform a thorough inspection of the ignition coil, wiring, and connectors. Test the components for proper voltage and continuity.
4. Can I continue driving my Chevrolet with OBDII code P135B related to the Ignition Coil Supply Voltage Circuit Bank 2?
- It is not recommended to continue driving with this code as it can lead to further engine damage and decreased performance. Have the issue addressed promptly.
5. What steps can I take to repair OBDII code P135B in a Chevrolet due to the Ignition Coil Supply Voltage Circuit Bank 2 problem?
- Repair options include replacing the faulty ignition coil, repairing damaged wiring or connectors, replacing the ignition control module, or reprogramming the engine's computer.
6. How much does it typically cost to fix OBDII code P135B caused by issues with the Ignition Coil Supply Voltage Circuit Bank 2 in a Chevrolet?
- The cost of repairs can vary depending on the specific cause of the issue, but it may range from $100 to $500 or more, including parts and labor.
7. Are there any preventive maintenance tips to avoid encountering OBDII code P135B related to the Ignition Coil Supply Voltage Circuit Bank 2 in my Chevrolet?
- Regularly inspect and maintain your ignition system components, including the ignition coil, wiring, and connectors, to prevent issues that may trigger this code.
8. Can a DIY enthusiast with basic automotive knowledge fix OBDII code P135B related to the Ignition Coil Supply Voltage Circuit Bank 2 in a Chevrolet?
- Depending on the specific cause, some DIY repairs may be possible, such as replacing the ignition coil. However, complex issues may require professional diagnosis and repair.
9. Will resetting the Check Engine Light make OBDII code P135B related to the Ignition Coil Supply Voltage Circuit Bank 2 disappear?
- Resetting the Check Engine Light may temporarily clear the code, but if the underlying issue is not addressed, the code is likely to reappear after some driving cycles.
10. How urgent is it to address OBDII code P135B indicating a problem with the Ignition Coil Supply Voltage Circuit Bank 2 in a Chevrolet?
- It is important to address this code promptly to prevent potential engine damage, decreased fuel efficiency, and drivability issues.
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