P0353 2018 Toyota RAV4 Code - Ignition Coil 3 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 3, Ignition Coil 3 harness is open or shorted, Ignition Coil 3 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
- P0353 2018 Toyota RAV4 indicates Ignition Coil 3 Primary/Secondary Circuit.
- Common causes
- Common causes include Faulty Ignition Coil 3, Ignition Coil 3 harness is open or shorted, Ignition Coil 3 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 P0353 2018 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 P0353 2018 Toyota RAV4?
- Faulty Ignition Coil 3
- Ignition Coil 3 harness is open or shorted
- Ignition Coil 3 circuit poor electrical connection
- Faulty Engine Control Module (ECM)
How to Fix the DTC P0353 2018 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 P0353 2018 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 P0353 2018 Toyota RAV4 code?
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Frequently Asked Questions about P0353 2018 Toyota RAV4 Code
1. What does OBDII code P0353 mean for a 2018 Toyota RAV4?
P0353 indicates a malfunction in the ignition coil's primary or secondary circuit for cylinder 3.
2. What are the common symptoms of code P0353 in a 2018 Toyota RAV4?
Symptoms may include engine misfires, poor acceleration, rough idling, reduced fuel efficiency, and the check engine light turning on.
3. What causes code P0353 in a 2018 Toyota RAV4?
Common causes include a faulty ignition coil, damaged wiring or connectors, a failed spark plug, or issues with the engine control module (ECM).
4. Can I still drive my 2018 Toyota RAV4 with code P0353?
Driving with this code is not recommended as it can cause further engine damage, reduced performance, and increased emissions.
5. How do I diagnose code P0353 in a 2018 Toyota RAV4?
Diagnosis involves checking the ignition coil, inspecting wiring and connectors, testing the spark plug, and using a multimeter to verify voltage and continuity.
6. How do I fix code P0353 on a 2018 Toyota RAV4?
Repairs may include replacing the ignition coil for cylinder 3, repairing damaged wiring, replacing the spark plug, or reprogramming or replacing the ECM.
7. How much does it cost to fix code P0353 on a 2018 Toyota RAV4?
The repair cost varies but typically ranges from $150 to $400, depending on the part needing replacement and labor rates.
8. Can a faulty spark plug cause code P0353 in a 2018 Toyota RAV4?
Yes, a worn or damaged spark plug can lead to ignition coil circuit issues and trigger the P0353 code.
9. Will clearing the P0353 code solve the issue on a 2018 Toyota RAV4?
Clearing the code will not fix the underlying problem; proper diagnosis and repair are necessary to prevent the code from returning.
10. What tools are needed to troubleshoot code P0353 on a 2018 Toyota RAV4?
You’ll need an OBDII scanner, a multimeter, and basic hand tools to inspect and test the ignition coil and related components.
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