[SOLVED] P135A Code: Fix Ignition Coil Supply Voltage Circuit Bank 1 Issue!

If you see the automobile fault code P135A and your engine light is on, it’s important to take action.

This code is typically caused by a blown ignition coil fuse, an open or shorted ignition coil fuse harness, a poor electrical connection in the ignition coil fuse circuit, or a faulty Engine Control Module (ECM). To fix the issue, start by visually inspecting the wiring harness and connectors. Look for any damaged components and check for broken, bent, pushed out, or corroded connector pins.

This repair should take about 1.0 hour. Don’t ignore this fault code, as addressing it promptly can prevent further damage to your vehicle.

Repair Importance Level10.0 (Out of 10)
Estimated Repair TimeApproximately 1.0 hour
Repair Difficulty Level10.0 (Out of 10)

When the engine light is on or the service engine soon warning light is illuminated, it could be a sign of the p135a fault code.

  • The symptoms of the automobile fault code p135a include the Engine Light being ON or the Service Engine Soon Warning Light being illuminated.

The automobile fault code p135a can be caused by a blown ignition coil fuse, an open or shorted ignition coil fuse harness, a poor electrical connection in the ignition coil fuse circuit, or a faulty Engine Control Module (ECM).

  • The fault code p135a can be caused by a blown ignition coil fuse, an open or shorted ignition coil fuse harness, a poor electrical connection in the ignition coil fuse circuit, or a faulty engine control module (ECM).

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To fix the p135a fault code, start by visually inspecting the wiring harness, connectors, and components for any damage or corrosion.

  • To fix the automobile fault code p135a, follow these steps: 1.
  • Check the possible causes mentioned above.
  • 2.
  • Visually inspect the wiring harness and connectors related to the fault code.
  • 3.
  • Look for any damaged components.
  • 4.
  • Check for broken, bent, pushed out, or corroded pins in the connectors.
  • The estimated repair time for this fix is 1.0 hour.

The automobile fault code P135A can be diagnosed and fixed within an estimated repair time of 1.0 hour.

Most auto repair shops typically charge between $75 and $150 per hour for this type of repair.

The P135A fault code refers to a problem with the ignition coil supply voltage circuit in the engine. In this system, each cylinder has its own ignition coil, and the Engine Control Module (ECM) monitors the voltage from the fuse to these coils.

If the ECM detects a voltage of less than 2.5V on the ignition coil supply voltage circuit, it will trigger the P135A code. This code indicates that there is an issue with the ignition coil supply voltage in one of the engine banks.

It is important to address this issue promptly to ensure proper ignition and engine performance.

What are the possible causes for the automobile fault code P135a?

If you see the engine light or service engine soon warning light on, the fault code P135a could be the culprit. This code is often caused by a blown ignition coil fuse, an open or shorted ignition coil fuse harness, a poor electrical connection in the ignition coil fuse circuit, or a faulty engine control module (ECM). To fix this issue, start by visually inspecting the wiring harness and connectors. Look for any damaged components and check for broken, bent, pushed out, or corroded connector pins. Don’t forget to check the possible causes mentioned above.

How can I visually inspect the wiring harness and connectors to fix the P135a fault code?

If you’re dealing with the P135a fault code and your engine light is on, it’s time to take action. The cause could be a blown ignition coil fuse, an open or shorted ignition coil fuse harness, a poor electrical connection in the ignition coil fuse circuit, or a faulty engine control module (ECM). To fix this issue, start by visually inspecting the wiring harness and connectors. Look for any damaged components and check for broken, bent, pushed out, or corroded connector pins. Don’t delay, get to the bottom of this problem and get your engine running smoothly again.

What should I look for when checking for damaged components and connector’s pins to resolve the P135a fault code?

When resolving the P135a fault code, start by checking for damaged components and connector’s pins. This can be done by visually inspecting the related wiring harness and connectors. Look for any signs of damage such as broken, bent, pushed out, or corroded pins. By doing this, you can identify any issues that may be causing the fault code and take the necessary steps to fix them.

p135a error fault code explained

If your engine light is on, it could be due to a blown ignition coil fuse, an open or shorted ignition coil fuse harness, a poor electrical connection in the ignition coil fuse circuit, or a faulty engine control module (ECM). To fix this issue, visually inspect the wiring harness and connectors, check for damaged components, and look for any broken, bent, pushed out, or corroded connector pins.

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