P0351 2017 Toyota RAV4 Code - Ignition Coil 1 Primary/Secondary Circuit
Quick Answer
A Direct Ignition System (DIS) is a 1-cylinder ignition system in which each cylinder is ignited by one ignition coil assembly and one spark plug is connected to the end of each secondary wiring. Common causes include Faulty Ignition Coil 1, Ignition Coil 1 harness is open or shorted, Ignition Coil 1 circuit poor electrical connection. Severity is High - diagnose this code as soon as possible. Driving is not recommended if the warning light is flashing, the engine runs poorly, or safety-related symptoms are present.
- What it means
- P0351 2017 Toyota RAV4 indicates Ignition Coil 1 Primary/Secondary Circuit.
- Common causes
- Common causes include Faulty Ignition Coil 1, Ignition Coil 1 harness is open or shorted, Ignition Coil 1 circuit poor electrical connection.
- Severity
- High - diagnose this code as soon as possible.
- Can I drive?
- Driving is not recommended if the warning light is flashing, the engine runs poorly, or safety-related symptoms are present.
Code P0351 2017 Toyota RAV4 Description
The Engine Control Module (ECM) determines the ignition timing and transmits the ignition (IGT) signals to each cylinder. Using the IGT signal, the ECM turns the power transistor inside the igniter on and off. The power transistor, in turn, switches the current supplied to the primary coil on and off. When the current to the primary coil is cut off, a powerful voltage is generated in the secondary coil. This voltage is applied to the spark plugs, causing them to spark inside the cylinders. As the ECM cuts the current to the primary coil, the igniter sends back an ignition confirmation (IGF) signal to the ECM for each cylinder ignition.
If the ECM does not receive any IGF signals despite transmitting the IGT signal, it interprets this as a fault in the igniter and stores a Diagnostic Trouble Code (DTC).
What are the Possible Causes of the DTC P0351 2017 Toyota RAV4?
- Faulty Ignition Coil 1
- Ignition Coil 1 harness is open or shorted
- Ignition Coil 1 circuit poor electrical connection
- Faulty Engine Control Module (ECM)
How to Fix the DTC P0351 2017 Toyota RAV4?
Review the 'Possible Causes' above and visually examine the corresponding wiring harness and connectors. Check for damaged components and inspect connector pins for signs of being broken, bent, pushed out, or corroded.
What is the Cost to Diagnose the Code?
Labor: 1.0
To diagnose the P0351 2017 Toyota RAV4 code, it typically requires 1.0 hour of labor. Rates vary by location, vehicle, and shop. Many shops charge between $80–$150 per hour; dealerships and metro areas may be higher, independents may be lower.
Need more information about the P0351 2017 Toyota RAV4 code?
Need more information on how to fix the P0351 2017 Toyota RAV4 code? Get Access to Factory Service Manuals
Need Help with the Code?
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Frequently Asked Questions about P0351 2017 Toyota RAV4 Code
1. What does OBDII code P0351 on a 2017 Toyota RAV4 mean?
Code P0351 indicates a problem with the Ignition Coil 1 Primary/Secondary Circuit in the engine.
2. What are the common symptoms of OBDII code P0351 in a 2017 Toyota RAV4?
Common symptoms include engine misfires, rough idling, loss of power, and in some cases, the Check Engine light illuminating.
3. What are the possible causes of OBDII code P0351 on a 2017 Toyota RAV4?
Possible causes include a faulty ignition coil, damaged wiring or connectors in the ignition coil circuit, or issues with the engine control module (ECM).
4. How can I diagnose the issue related to OBDII code P0351 in my 2017 Toyota RAV4?
You can diagnose the problem by checking the ignition coil, inspecting the wiring and connectors for any damage, and using a diagnostic scanner to read the code and further troubleshoot the issue.
5. Can I continue driving my 2017 Toyota RAV4 with OBDII code P0351?
It is not recommended to drive your vehicle with code P0351 as it can lead to further damage to the engine and other components. It's best to address the issue promptly.
6. How can I repair OBDII code P0351 on my 2017 Toyota RAV4?
Repairing code P0351 typically involves replacing the faulty ignition coil, repairing any damaged wiring or connectors, and clearing the code with a diagnostic scanner.
7. Are there any preventive measures to avoid OBDII code P0351 in my 2017 Toyota RAV4?
Regular maintenance, such as checking and replacing ignition components at recommended intervals, can help prevent issues leading to code P0351.
8. Can a DIY enthusiast fix OBDII code P0351 in a 2017 Toyota RAV4?
If you have the necessary tools, knowledge, and experience working on automotive electrical systems, you may be able to fix code P0351 yourself. However, it's recommended to consult a professional if you're unsure.
9. Is it necessary to reset the ECM after repairing OBDII code P0351 on a 2017 Toyota RAV4?
Yes, resetting the ECM after repairing code P0351 allows the system to relearn and adapt to the newly replaced components, ensuring proper operation.
10. How much does it cost to repair OBDII code P0351 on a 2017 Toyota RAV4 at a dealership or repair shop?
The cost of repairing code P0351 can vary depending on the labor rates, parts needed, and any additional repairs required. It's advisable to get estimates from different shops for an accurate cost assessment.
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