P1373 Ignition Spare

How to Fix P1373 Ignition Spare

Introduction

If you’re experiencing issues with your car’s ignition system, specifically the P1373 code, you’re not alone. This code indicates a problem with the ignition spare circuit, which can cause your car to run poorly or not start at all. Fortunately, with a little bit of knowledge and some basic tools, you can fix this issue yourself and save money on costly repairs.

What is P1373 Ignition Spare?

P1373 is a diagnostic trouble code (DTC) that indicates a problem with the ignition spare circuit. This circuit is responsible for providing power to the ignition system when the key is turned to the “start” position. If there is an issue with this circuit, your car may not start or may run poorly.

Step-by-Step Guide to Fixing P1373 Ignition Spare

Step 1: Check the Battery

The first step in fixing P1373 is to check the battery. Make sure it is fully charged and in good condition. If the battery is weak or dead, it may not provide enough power to the ignition system, causing the P1373 code to appear.

Step 2: Check the Ignition Switch

The next step is to check the ignition switch. This switch is responsible for sending power to the ignition system when the key is turned to the “start” position. If the switch is faulty, it may not send power to the ignition system, causing the P1373 code to appear.

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Step 3: Check the Ignition Coil

If the battery and ignition switch are both in good condition, the next step is to check the ignition coil. The ignition coil is responsible for converting the battery’s low voltage into the high voltage needed to ignite the fuel in the engine. If the coil is faulty, it may not provide enough voltage to the spark plugs, causing the P1373 code to appear.

Step 4: Check the Spark Plugs

If the ignition coil is in good condition, the next step is to check the spark plugs. The spark plugs are responsible for igniting the fuel in the engine. If the plugs are fouled or worn, they may not provide a strong enough spark to ignite the fuel, causing the P1373 code to appear.

Step 5: Check the Wiring

If all of the above components are in good condition, the final step is to check the wiring. Make sure all of the wiring connections are clean and tight. Check for any damaged or broken wires that may be causing the P1373 code to appear.

Useful Tips

– Always disconnect the battery before working on the ignition system to avoid electrical shock or damage to the system.
– Use a multimeter to test the battery, ignition switch, ignition coil, and spark plugs for proper voltage and resistance.
– Replace any faulty components with OEM parts to ensure proper fit and function.

Conclusion

Fixing P1373 Ignition Spare may seem daunting, but with a little bit of knowledge and some basic tools, you can do it yourself and save money on costly repairs. Remember to check the battery, ignition switch, ignition coil, spark plugs, and wiring for any issues. Use a multimeter to test for proper voltage and resistance, and always replace faulty components with OEM parts.

FAQs

1. Can I drive my car with the P1373 code?

It is not recommended to drive your car with the P1373 code as it can cause your car to run poorly or not start at all.

2. How much does it cost to fix P1373 Ignition Spare?

The cost to fix P1373 Ignition Spare can vary depending on the cause of the issue and the cost of replacement parts. DIY repairs can save you money on labor costs.

3. How often should I check my car’s ignition system?

It is recommended to have your car’s ignition system checked at least once a year or whenever you notice any issues with starting or running your car. Regular maintenance can prevent costly repairs down the road.