P0355 2006 Toyota Highlander Code - Ignition Coil 5 Primary/Secondary Circuit
Quick Answer
The P0355 diagnostic trouble code (DTC) for a 2006 Toyota Highlander indicates a problem with the Ignition Coil 5 Primary/Secondary Circuit. Common causes include Faulty ignition coil, Damaged wiring or connectors in the ignition coil circuit, ECM malfunction. 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
- P0355 2006 Toyota Highlander indicates Ignition Coil 5 Primary/Secondary Circuit.
- Common causes
- Common causes include Faulty ignition coil, Damaged wiring or connectors in the ignition coil circuit, ECM malfunction.
- 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.
Fix Your Car Smarter
Try the New AutoCodes App!
Get complete OBDII diagnostics, repair solutions, and cost estimates, plus AI chat support on demand.
Code P0355 2006 Toyota Highlander Description
The P0355 diagnostic trouble code (DTC) for a 2006 Toyota Highlander indicates a problem with the Ignition Coil 5 Primary/Secondary Circuit. This code specifically points to an issue with the ignition coil for cylinder 5 in the engine. The ignition coil is responsible for converting the low voltage from the battery into the high voltage needed to ignite the fuel and air mixture in the combustion chamber. When the ignition coil malfunctions, it can lead to misfires, poor engine performance, and even engine stalling.
Common Causes of P0355 2006 Toyota Highlander
- Faulty ignition coil
- Damaged wiring or connectors in the ignition coil circuit
- ECM malfunction
- Spark plug issues
- Carbon buildup on the spark plug
Symptoms of P0355 2006 Toyota Highlander
- Engine misfires
- Rough idling
- Decreased fuel efficiency
- Engine stalling
- Illumination of the Check Engine Light
How to Fix P0355 2006 Toyota Highlander
- Diagnose the issue by using a scan tool to confirm the P0355 code and pinpoint the exact cause of the problem.
- Inspect the ignition coil for cylinder 5 and test its resistance to determine if it is faulty.
- Check the wiring and connectors in the ignition coil circuit for any damage or corrosion, and repair or replace as needed.
- If the ignition coil is confirmed to be faulty, replace it with a new one and ensure it is properly connected.
- Clear the DTC with a scan tool and test drive the vehicle to verify that the issue has been resolved.
Cost to Fix P0355 2006 Toyota Highlander
The cost of repairing the Ignition Coil 5 Primary/Secondary Circuit issue on a 2006 Toyota Highlander can vary depending on the specific parts needed and labor rates in your area. On average, the cost of replacing an ignition coil can range from $100 to $300, including parts and labor. Additional costs may be incurred if other components need to be replaced or if further diagnosis is required. It's recommended to contact local auto repair shops for accurate estimates based on your location and vehicle specifics.
When is the Code Detected?
Need more information about the P0355 2006 Toyota Highlander code?
Need more information on how to fix the P0355 2006 Toyota Highlander code? Get Access to Factory Service Manuals
Need Help with the Code?
Get the P0355 2006 Toyota Highlander code diagnosed by a professional: Find a repair shop in your area
Frequently Asked Questions about P0355 2006 Toyota Highlander Code
1. What does the OBDII code P0355 mean for a 2006 Toyota Highlander?
P0355 indicates a malfunction in the ignition coil "E" (cylinder 5) primary or secondary circuit, which may affect engine performance.
2. What are the common symptoms of a P0355 code?
Symptoms include engine misfires, rough idling, reduced power, poor fuel economy, and the Check Engine Light being illuminated.
3. What causes the P0355 code to appear?
Possible causes include a faulty ignition coil, damaged wiring or connectors in the ignition circuit, a malfunctioning PCM (Powertrain Control Module), or a bad spark plug.
4. How can I locate cylinder 5 in my 2006 Toyota Highlander?
Cylinder 5 is located on the rear bank of the engine (closest to the firewall) in the V6 engine configuration. Refer to the firing order diagram for clarity.
5. Can I still drive my Toyota Highlander with a P0355 code?
Driving with this code is not recommended as it can cause further damage to the engine or catalytic converter due to unburned fuel from misfires.
6. How do I diagnose a P0355 code?
Start by inspecting the ignition coil for cylinder 5, checking for damaged wiring or loose connections, and testing the coil with a multimeter. A scan tool can also help verify misfire data.
7. How do I fix a P0355 code on my 2006 Toyota Highlander?
Repairs may include replacing the faulty ignition coil, repairing damaged wiring or connectors, replacing the spark plug, or reprogramming/updating the PCM.
8. How much does it cost to fix a P0355 code?
The cost varies depending on the repair, but replacing an ignition coil typically costs $100–$300, including parts and labor.
9. Can a bad spark plug cause the P0355 code?
Yes, a worn or damaged spark plug can cause the ignition coil to malfunction, triggering the P0355 code.
10. Will clearing the P0355 code with a scan tool fix the problem?
Clearing the code will turn off the Check Engine Light temporarily, but the underlying issue must be resolved to prevent the code from returning.
Discuss the causes and fixes for P0355 2006 Toyota Highlander OBDII Code
Code P0355 2006 Toyota Highlander comments
No comments found for this page.
Fix Your Car Smarter
Try the New AutoCodes App!
Get complete OBDII diagnostics, repair solutions, and cost estimates, plus AI chat support on demand.