AutoCodes – Scion – P0351 2006 Scion xB

P0351 2006 Scion xB Code - Ignition Coil 1 Primary/Secondary Circuit

Quick Answer

A Direct Ignition System (DIS) is used on this vehicle. 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 2006 Scion xB 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.

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Code Popularity 3,185

How popular is this code, among other codes? Low

Repair Importance Level

Urgent (Diagnose now) (3 / 3)

Repair Difficulty Level

Intermediate (2 / 3)

What is this?

Table of contents Created and updated by William Orellana on Jun 14, 2020

Description
Step-by-Step Diagnostic Guide
Possible Causes
How To Fix
Cost to Diagnose
FAQs
Comments
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Code P0351 2006 Scion xB Description

A Direct Ignition System (DIS) is used on this vehicle. The DIS is a 1-cylinder ignition system in which each cylinder is ignited by 1 ignition coil, and 1 spark plug is connected to the end of each secondary wiring. A powerful voltage, generated in the secondary wiring, is applied directly to each spark plug. The sparks of the spark plugs pass from the center electrodes to the ground electrodes. The 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 on and off the current to the primary coil. 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.

OBDII Code P0351 2006 Scion xB - Ignition Coil 1 Primary/Secondary Circuit - AutoCodes.com — P0351 2006 Scion xB Code - Ignition Coil 1 Primary/Secondary Circuit

What does this mean?

What are the Possible Causes of the DTC P0351 2006 Scion xB?

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 2006 Scion xB?

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 2006 Scion xB 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 2006 Scion xB code?

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About the author: William Orellana is a Master Mechanic and Mechanical Engineer with over 30 years of experience diagnosing and repairing vehicles. Learn more about his background.

Frequently Asked Questions about P0351 2006 Scion xB Code

1. What does OBDII code P0351 on a 2006 Scion xB 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 on a 2006 Scion xB?

Common symptoms include engine misfires, rough idling, loss of power, and illuminated check engine light.

3. What are the possible causes of OBDII code P0351 on a 2006 Scion xB?

Possible causes include a faulty ignition coil, damaged wiring or connectors, poor electrical connections, or a problem with the engine control module.

4. How can I diagnose the issue related to OBDII code P0351 on a 2006 Scion xB?

Diagnosis typically involves checking the ignition coil, inspecting the wiring and connectors for damages, and testing the electrical connections in the circuit.

5. Can I continue driving my 2006 Scion xB with OBDII code P0351?

It is not recommended to drive the vehicle with code P0351 as it can lead to further damage to the engine components.

6. How can I repair OBDII code P0351 on a 2006 Scion xB?

Repairing the issue may involve replacing the faulty ignition coil, repairing damaged wiring or connectors, and ensuring proper electrical connections.

7. Is it possible to reset OBDII code P0351 on a 2006 Scion xB without fixing the underlying issue?

Resetting the code without addressing the underlying problem may temporarily turn off the check engine light, but the issue will likely reoccur.

8. How much does it cost to fix OBDII code P0351 on a 2006 Scion xB?

The cost of fixing code P0351 can vary depending on the root cause of the issue, but it may involve parts and labor costs for replacing the ignition coil or repairing wiring.

9. Can a DIY enthusiast fix OBDII code P0351 on a 2006 Scion xB?

Depending on the skill level and tools available, some DIY enthusiasts may be able to address the issue themselves by following repair guides and utilizing basic automotive knowledge.

10. How often does OBDII code P0351 occur in a 2006 Scion xB?

The occurrence of code P0351 can vary and is typically influenced by factors such as the vehicle's maintenance history, driving habits, and environmental conditions.