P135B
Ignition Coil Supply Voltage Circuit Bank 2
P135B is an OBD-II diagnostic trouble code meaning: Ignition Coil Supply Voltage Circuit Bank 2. Common causes: open or short circuit in the coil power supply circuit, poor contact in the ignition coil connectors. Estimated repair cost: $17–67.
Symptoms
- Misfire in one or more cylinders
- Loss of engine power
- Increased fuel consumption
- Check Engine Light Is On
- Unstable engine idling
Causes
- Open or short circuit in the coil power supply circuit
- Poor contact in the ignition coil connectors
- Ignition module malfunction
- Problems with the ignition relay
- Engine ECU malfunction
How to Fix
- Check the integrity of the wiring to the ignition coils
- Inspect and clean the coil connector contacts
- Check the voltage on the ignition coils
- Replacing a faulty ignition coil or module
- Check and replace ignition relay if necessary
Related codes
FAQ
What does the P135B code mean?
P135B is an OBD-II diagnostic trouble code that indicates: Ignition Coil Supply Voltage Circuit Bank 2
What causes a P135B error code?
The most common causes of P135B include: Open or short circuit in the coil power supply circuit; Poor contact in the ignition coil connectors; Ignition module malfunction; Problems with the ignition relay.
How do I fix a P135B diagnostic trouble code?
To fix P135B: Check the integrity of the wiring to the ignition coils. Inspect and clean the coil connector contacts. Check the voltage on the ignition coils. For a complete diagnosis, use an OBD-II scanner.
Is it safe to drive with P135B?
Limited driving only, diagnose soon
How much does it cost to fix P135B?
The estimated repair cost for P135B is $17–67. Actual cost depends on your vehicle, location, and labor rates.
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