P135A
Ignition Coil Supply Voltage Circuit Bank 1
P135A is an OBD-II diagnostic trouble code meaning: Ignition Coil Supply Voltage Circuit Bank 1. Common causes: open or short circuit in the coil power circuit, faulty relay or fuse. Estimated repair cost: $17–89.
Symptoms
- Misfire in one or more cylinders
- Loss of engine power
- Increased fuel consumption
- Rough engine idling
- Check Engine Light Illuminates
Causes
- Open or short circuit in the coil power circuit
- Faulty relay or fuse
- Problems with the wiring harness or connectors
- Engine control unit (ECU) malfunction
- Alternator or battery problems
How to Fix
- Check the condition of fuses and relays
- Inspect the wiring harness and connectors for damage.
- Check the voltage in the coil power circuit
- If necessary, replace the ignition coil
- Check and, if necessary, replace the engine control unit
Related codes
FAQ
What does the P135A code mean?
P135A is an OBD-II diagnostic trouble code that indicates: Ignition Coil Supply Voltage Circuit Bank 1
What causes a P135A error code?
The most common causes of P135A include: Open or short circuit in the coil power circuit; Faulty relay or fuse; Problems with the wiring harness or connectors; Engine control unit (ECU) malfunction.
How do I fix a P135A diagnostic trouble code?
To fix P135A: Check the condition of fuses and relays. Inspect the wiring harness and connectors for damage.. Check the voltage in the coil power circuit. For a complete diagnosis, use an OBD-II scanner.
Is it safe to drive with P135A?
Limited driving only, diagnose soon
How much does it cost to fix P135A?
The estimated repair cost for P135A is $17–89. Actual cost depends on your vehicle, location, and labor rates.
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