P1355 Hyundai Code - #5 MF Signal Line Open
Quick Answer
P1355 Hyundai indicates #5 MF Signal Line Open. Common causes for P1355 Hyundai include wiring or connector problems, a faulty related sensor or actuator, and control module or calibration issues. 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
- P1355 Hyundai indicates #5 MF Signal Line Open.
- Common causes
- Common causes for P1355 Hyundai include wiring or connector problems, a faulty related sensor or actuator, and control module or calibration issues.
- 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 P1355 Hyundai Description
How to Fix the DTC P1355 Hyundai?
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 P1355 Hyundai 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.
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Frequently Asked Questions about P1355 Hyundai Code
1. What does the OBDII code P1355 mean on a Hyundai?
P1355 indicates an issue with the #5 MF (Misfire) signal line, specifically an open circuit or disconnection.
2. What are the common symptoms of code P1355 in a Hyundai?
Symptoms may include rough engine idle, poor acceleration, reduced fuel efficiency, and the check engine light illuminating.
3. What causes the P1355 code to appear?
This code is typically caused by a damaged or disconnected wiring harness, a faulty ignition coil, or a malfunctioning Engine Control Module (ECM).
4. Can I drive my Hyundai with a P1355 code?
Driving with this code is not recommended as it may lead to further engine damage or unsafe driving conditions due to misfires.
5. How can I diagnose the P1355 code on my Hyundai?
Inspect the wiring and connectors for the #5 cylinder ignition coil, test the ignition coil itself, and check for proper signal continuity.
6. How do I fix the P1355 code on a Hyundai?
Repairs may include reconnecting or replacing damaged wiring, replacing the faulty ignition coil, or, in rare cases, repairing or replacing the ECM.
7. How much does it cost to fix a P1355 code?
Repair costs vary, but replacing an ignition coil typically ranges from $100 to $300, while wiring repairs may cost less.
8. Can a dirty ignition coil cause the P1355 code?
While dirt or corrosion on the ignition coil connectors can contribute to poor connections, the code usually points to a more severe issue like a broken wire or faulty coil.
9. Will clearing the P1355 code fix the problem?
Clearing the code without addressing the underlying issue will only temporarily turn off the check engine light. The problem will likely return.
10. How can I prevent the P1355 code from occurring again?
Regular maintenance, such as inspecting ignition components and ensuring wiring integrity, can help prevent this issue in the future.
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