P1555 Code - Electronic Variable Orifice Output
Quick Answer
With the engine runtime over 2.5 seconds, vehicle speed over 10 mph, current flowing in Electronic Variable Orifice (EVO) solenoid (to increase steering effort), the Powertrain Control Module (PCM) detects that desired and feedback current did not match. Common causes include Faulty Electronic Variable Orifice (EVO) solenoid, Electronic Variable Orifice (EVO) solenoid harness is open or shorted, Electronic Variable Orifice (EVO) solenoid 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
- P1555 indicates Electronic Variable Orifice Output.
- Common causes
- Common causes include Faulty Electronic Variable Orifice (EVO) solenoid, Electronic Variable Orifice (EVO) solenoid harness is open or shorted, Electronic Variable Orifice (EVO) solenoid 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 P1555 Description
What are the Possible Causes of the DTC P1555?
- Faulty Electronic Variable Orifice (EVO) solenoid
- Electronic Variable Orifice (EVO) solenoid harness is open or shorted
- Electronic Variable Orifice (EVO) solenoid circuit poor electrical connection
How to Fix the DTC P1555?
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 P1555 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 P1555 code?
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Need Help with the Code?
Get the P1555 code diagnosed by a professional: Find a repair shop in your area
Information for Specific Makes
- P1555 Audi — Charge Pressure Upper Limit Exceeded
- P1555 Buick — Electronic Variable Orifice Output
- P1555 Cadillac — Electronic Variable Orifice Output
- P1555 Chevrolet — Electronic Variable Orifice Output
- P1555 GMC — Electronic Variable Orifice Output
- P1555 Hyundai — Idle Co-Potentiometer Open/Short
- P1555 Lexus — Reactor Temperature Sensor Circuit Low
- P1555 Toyota — Reactor Temperature Sensor Circuit Low
- P1555 Volkswagen — Charge Pressure Upper Limit Exceeded
Frequently Asked Questions about P1555 Code
1. What are common symptoms of OBDII code P1555 (Electronic Variable Orifice Output)?
- Common symptoms include rough idling, decreased engine performance, and potential stalling.
2. What are possible causes of OBDII code P1555?
- Possible causes may include a faulty electronic variable orifice control solenoid, wiring issues, or a malfunctioning engine control module (ECM).
3. How can I diagnose the cause of OBDII code P1555?
- To diagnose the issue, you can perform a visual inspection of the wiring, test the electronic variable orifice control solenoid, and check for any ECM-related issues using a diagnostic tool.
4. Can driving with OBDII code P1555 cause further damage to my vehicle?
- Continuing to drive with this code may lead to poor fuel efficiency, engine misfires, and potential damage to other engine components over time.
5. How can I repair OBDII code P1555?
- Repairing this code may involve replacing the faulty electronic variable orifice control solenoid, repairing any damaged wiring, or addressing any ECM issues as needed.
6. Is it safe to continue driving my vehicle with OBDII code P1555?
- It is not recommended to drive with this code for an extended period, as it can lead to further engine problems and potential safety issues on the road.
7. How much does it typically cost to repair OBDII code P1555?
- The cost of repair can vary depending on the exact cause of the issue, but it may range from $100 to $300 for parts and labor.
8. Can I reset OBDII code P1555 myself?
- You can reset the code using an OBDII scanner, but it is important to address the underlying issue causing the code to prevent it from reoccurring.
9. How long does it take to repair OBDII code P1555?
- The repair time can vary based on the specific cause and complexity of the issue, but it usually takes 1-2 hours for a professional technician to diagnose and fix the problem.
10. Will OBDII code P1555 cause my vehicle to fail an emissions test?
- Yes, this code can cause your vehicle to fail an emissions test due to the impact on engine performance and emissions control systems.
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