How to Fix P1370 Ignition Coil Secondary Circuit Failure
If you’re experiencing P1370 ignition coil secondary circuit failure, you’re not alone. This is a common problem that can occur in any vehicle, and it can be frustrating to deal with. However, with the right tools and knowledge, you can fix this issue yourself and save money on costly repairs. In this article, we’ll provide you with step-by-step instructions on how to fix P1370 ignition coil secondary circuit failure.
What is P1370 Ignition Coil Secondary Circuit Failure?
P1370 ignition coil secondary circuit failure is a diagnostic trouble code (DTC) that indicates a problem with the ignition coil’s secondary circuit. The ignition coil is responsible for converting the battery’s low voltage into the high voltage needed to ignite the fuel in the engine. When the secondary circuit fails, the engine may misfire, run rough, or not start at all.
Tools You’ll Need
Before you begin fixing P1370 ignition coil secondary circuit failure, you’ll need to gather a few tools. Here’s what you’ll need:
- Socket set
- Screwdriver set
- Ignition coil
- Spark plug
Step-by-Step Guide to Fixing P1370 Ignition Coil Secondary Circuit Failure
Step 1: Disconnect the Battery
Before you begin working on your vehicle, it’s important to disconnect the battery to prevent any electrical shocks or damage. Locate the negative terminal on the battery and use a socket wrench to loosen the bolt. Once the bolt is loose, remove the negative cable from the battery and set it aside.
Step 2: Locate the Ignition Coil
The ignition coil is typically located near the engine’s cylinder head. Refer to your vehicle’s owner’s manual or a repair manual to locate the ignition coil.
Step 3: Remove the Ignition Coil
Use a socket wrench to remove the bolts that hold the ignition coil in place. Once the bolts are removed, gently pull the ignition coil out of its socket.
Step 4: Test the Ignition Coil
Using a multimeter, test the ignition coil to determine if it’s functioning properly. Set the multimeter to the ohms setting and touch the probes to the ignition coil’s terminals. The multimeter should read between 0.4 and 2 ohms. If the reading is outside of this range, the ignition coil is faulty and needs to be replaced.
Step 5: Replace the Ignition Coil
If the ignition coil is faulty, it needs to be replaced. Install the new ignition coil by inserting it into the socket and tightening the bolts with a socket wrench.
Step 6: Replace the Spark Plug
A faulty spark plug can also cause P1370 ignition coil secondary circuit failure. Remove the spark plug using a socket wrench and inspect it for any damage or wear. If the spark plug is damaged or worn, replace it with a new one.
Step 7: Reconnect the Battery
Once you’ve replaced the ignition coil and spark plug, reconnect the battery by attaching the negative cable to the negative terminal and tightening the bolt with a socket wrench.
P1370 ignition coil secondary circuit failure can be a frustrating problem to deal with, but with the right tools and knowledge, you can fix it yourself. By following the step-by-step guide we’ve provided, you can replace the faulty ignition coil and spark plug and get your vehicle running smoothly again.
1. Can I drive my vehicle with P1370 ignition coil secondary circuit failure?
It’s not recommended to drive your vehicle with P1370 ignition coil secondary circuit failure. This can cause further damage to your vehicle and potentially lead to more costly repairs.
2. How often should I replace my ignition coil?
The lifespan of an ignition coil can vary depending on the vehicle and driving conditions. It’s recommended to replace your ignition coil every 100,000 miles or if you’re experiencing any issues with your vehicle’s performance.
3. Can I replace the ignition coil myself?
Yes, you can replace the ignition coil yourself if you have the right tools and knowledge. However, if you’re not comfortable working on your vehicle, it’s best to take it to a professional mechanic.