P1358 Code - Ignition Diagnostic Monitor Signal Out of Self-Test Range
Quick Answer
The P1358 diagnostic trouble code (DTC) indicates that the Ignition Diagnostic Monitor Signal is out of the self-test range. Common causes include Faulty ignition coil, Damaged spark plugs, Wiring issues in the ignition system. 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
- P1358 indicates Ignition Diagnostic Monitor Signal Out of Self-Test Range.
- Common causes
- Common causes include Faulty ignition coil, Damaged spark plugs, Wiring issues in the ignition system.
- 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 P1358 Description
The P1358 diagnostic trouble code (DTC) indicates that the Ignition Diagnostic Monitor Signal is out of the self-test range. This code is specific to Ford vehicles and is related to the On-Board Diagnostic (OBD) system. The Ignition Diagnostic Monitor (IDM) is a component of the OBD system that monitors the ignition system's performance. When the IDM signal is out of the self-test range, it means that the OBD system has detected a fault or discrepancy in the ignition system's operation. This could lead to issues with engine performance, fuel efficiency, and emissions.
Common Causes of P1358
- Faulty ignition coil
- Damaged spark plugs
- Wiring issues in the ignition system
- Malfunctioning ignition control module
Symptoms of P1358
- Engine misfires or rough idling
- Reduced engine power
- Decreased fuel efficiency
- Check Engine Light illuminated on the dashboard
How to Fix P1358
- Use an OBD-II scanner to retrieve the specific DTC and identify the source of the issue.
- Inspect the ignition system components, including the ignition coil, spark plugs, and wiring, for any signs of damage or wear.
- Replace any faulty ignition components identified during the inspection.
- Clear the DTC and reset the OBD system to see if the issue has been resolved.
- Test drive the vehicle to ensure the problem has been fixed and the code does not reappear.
Cost to Fix P1358
The cost of repairing a P1358 DTC can vary depending on the specific cause of the issue and the vehicle make and model. On average, the repair cost for this issue can range from $100 to $300, including parts and labor. It's important to note that labor rates at auto repair shops can vary, so it's recommended to get quotes from multiple shops to find the best price.
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Code P1358 Information for Specific Makes
- P1358 Audi — Cylinder 2 Ignition Activation Circuit Open
- P1358 BMW — Misfire During Start Cylinder 9
- P1358 Buick — Ignition Control Module Output High/Pulse Detected When Grounded Cylinder 8
- P1358 Cadillac — Ignition Control Module Output High/Pulse Detected When Grounded Cylinder 8
- P1358 Chevrolet — Ignition Control Module Output High/Pulse Detected When Grounded Cylinder 8
- P1358 Ford — Ignition Diagnostic Monitor Signal Out of Self-Test Range
- P1358 GMC — Ignition Control Module Output High/Pulse Detected When Grounded Cylinder 8
- P1358 Hyundai — #8 MF Signal Line Open
- P1358 Lincoln — Ignition Diagnostic Monitor Signal Out of Self-Test Range
- P1358 Mercury — Ignition Diagnostic Monitor Signal Out of Self-Test Range
- P1358 Volkswagen — Cylinder 2 Ignition Activation Circuit Open
Frequently Asked Questions about P1358 Code
1. What are the common symptoms of OBDII code P1358?
- Common symptoms include rough engine idle, engine misfires, loss of power, and in some cases, the Check Engine Light may illuminate.
2. What can cause the OBDII code P1358 to trigger?
- The code P1358 is typically triggered by issues with the Ignition Diagnostic Monitor system, such as faulty spark plugs, ignition coils, or wiring problems.
3. How serious is the OBDII code P1358?
- While the code itself may not cause immediate harm to the engine, it should be addressed promptly to prevent potential damage to the catalytic converter and other engine components.
4. What are some possible repair tips for OBDII code P1358?
- Start by checking and replacing spark plugs, ignition coils, and spark plug wires. Additionally, ensure all wiring connections related to the ignition system are secure and free of damage.
5. Can I drive my vehicle with the OBDII code P1358 present?
- It is generally not recommended to drive the vehicle with this code present, as it can lead to decreased engine performance and potentially more serious issues if left unresolved.
6. How do I diagnose the OBDII code P1358?
- Diagnosis typically involves using a scan tool to retrieve the code, followed by a visual inspection of the ignition system components and testing their functionality using a multimeter.
7. Will resetting the Check Engine Light resolve OBDII code P1358?
- Resetting the Check Engine Light may temporarily clear the code, but it will likely return if the underlying issue causing the code is not addressed.
8. Can a DIY enthusiast fix the OBDII code P1358 at home?
- Depending on your level of experience and access to tools, DIY enthusiasts may be able to address the code by inspecting and replacing the faulty ignition system components.
9. How much does it typically cost to repair OBDII code P1358 at a mechanic?
- The cost of repairs can vary depending on the extent of the issue and the rates of the mechanic, but it may range from $100 to $300 or more, including parts and labor.
10. Is it possible for the OBDII code P1358 to return after repairs?
- If the underlying issue causing the code is not properly diagnosed and fixed, there is a possibility that the code may return even after repairs have been made. Regular maintenance and thorough inspections can help prevent recurrence.
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