P1355 Code - Cylinder 1 Ignition Circuit Open
Quick Answer
As part of the CARB/OBD regulations, the Engine Control Module (ECM) must determine if a misfire is occurring and also identify the specific cylinder(s) and the severity of the misfire event and whether it is emissions relevant or catalyst damaging. Common causes include Faulty Ignition Coil, Ignition Coil harness is open or shorted, Ignition Coil 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
- P1355 indicates Cylinder 1 Ignition Circuit Open.
- Common causes
- Common causes include Faulty Ignition Coil, Ignition Coil harness is open or shorted, Ignition Coil 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 P1355 Description
The misfire/engine roughness calculation is derived from the differences in the period duration (T) of individual increment gear segments. Each segment period consists of an angular range of 120° crank angle that starts 78° before Top Dead Center (TDC).
If the expected period duration is greater than the permissible value a misfire fault for the particular cylinder is stored in the fault memory of the ECM. Depending on the level of misfire rate measured the control unit will illuminate the "Service Engine Soon" light, may cutoff fuel to the particular cylinder and may switch lambda operation to open-loop. All misfire faults are weighted to determine if the misfire is emissions relevant or catalyst damaging.
What are the Possible Causes of the DTC P1355?
- Faulty Ignition Coil
- Ignition Coil harness is open or shorted
- Ignition Coil circuit poor electrical connection
How to Fix the DTC P1355?
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 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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Information for Specific Makes
- P1355 Audi — Cylinder 1 Ignition Activation Circuit Open
- P1355 BMW — Misfire Cylinder 7 With Fuel Cut-Off
- P1355 Buick — Ignition Control Module Output High/Pulse Detected When Grounded Cylinder 5
- P1355 Cadillac — Ignition Control Module Output High/Pulse Detected When Grounded Cylinder 5
- P1355 Chevrolet — Ignition Control Module Output High/Pulse Detected When Grounded Cylinder 5
- P1355 Ford — Ignition Coil 'D' Primary Circuit
- P1355 GMC — Ignition Control Module Output High/Pulse Detected When Grounded Cylinder 5
- P1355 Honda — Front Ignition Coil Power Circuit Malfunction
- P1355 Hyundai — #5 MF Signal Line Open
- P1355 Mazda — Ignition Coil 'D' Primary Circuit
- P1355 MINI — Misfire Cylinder 7 With Fuel Cut-Off
- P1355 Volkswagen — Cylinder 1 Ignition Activation Circuit Open
Frequently Asked Questions about P1355 Code
1. What are the common symptoms of OBDII code P1355 (Cylinder 1 Ignition Circuit Open)?
- Common symptoms include rough idling, misfiring engine, loss of power, and illuminated Check Engine Light.
2. What are the possible causes of OBDII code P1355?
- The code P1355 can be caused by a faulty ignition coil, damaged spark plug wires, loose connections, or a problem with the Engine Control Module (ECM).
3. How can I diagnose the issue related to code P1355?
- To diagnose the issue, you can start by inspecting the ignition coil and spark plug wires for any visible damage. Checking the electrical connections and conducting a continuity test can also help pinpoint the problem.
4. Can a DIY enthusiast repair OBDII code P1355 at home?
- Depending on the cause, a DIY enthusiast with some mechanical knowledge can potentially repair code P1355 at home by replacing the faulty ignition coil, spark plug wires, or addressing any loose connections.
5. What is the recommended repair approach for OBDII code P1355?
- The recommended repair approach for code P1355 is to first diagnose the exact cause of the issue, then replace any faulty components such as the ignition coil or spark plug wires, and finally clear the code with an OBDII scanner.
6. Is it safe to continue driving with OBDII code P1355 present?
- It is not recommended to continue driving with code P1355 present, as it can lead to further damage to the engine and potentially cause more severe issues over time. It is best to address the problem as soon as possible.
7. Can weather conditions affect the occurrence of OBDII code P1355?
- Extreme weather conditions, such as heavy rain or extreme cold, can potentially exacerbate issues related to code P1355 by affecting the ignition system components. It's important to keep the ignition system well maintained to prevent such issues.
8. How long does it typically take to repair OBDII code P1355?
- The repair time for code P1355 can vary depending on the exact cause of the issue and the availability of replacement parts. In general, it can take anywhere from 30 minutes to a few hours to diagnose and repair the problem.
9. Can resetting the ECM clear OBDII code P1355 temporarily?
- Resetting the ECM may temporarily clear the code P1355, but if the underlying issue is not addressed, the code is likely to reappear once the problem resurfaces. It is important to diagnose and repair the root cause of the code.
10. Is it necessary to visit a mechanic for OBDII code P1355 diagnosis and repair?
- While it is possible to diagnose and repair code P1355 at home for those with the necessary skills and tools, seeking professional help from a mechanic is recommended if you are unsure about the diagnosis or repair process.
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