C1555 Lexus Code - Power Steering Motor Relay Welding Failure
Quick Answer
The Power Steering ECU supplies current to the Power Steering Motor through this circuit. Common causes include Faulty Power Steering Motor Assembly, Power Steering Motor Assembly harness is open or shorted, Power Steering Motor Assembly 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
- C1555 Lexus indicates Power Steering Motor Relay Welding Failure.
- Common causes
- Common causes include Faulty Power Steering Motor Assembly, Power Steering Motor Assembly harness is open or shorted, Power Steering Motor Assembly 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 C1555 Lexus Description
What are the Possible Causes of the DTC C1555 Lexus?
- Faulty Power Steering Motor Assembly
- Power Steering Motor Assembly harness is open or shorted
- Power Steering Motor Assembly circuit poor electrical connection
- Faulty Power Steering ECU
How to Fix the DTC C1555 Lexus?
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.
Code Tech Notes
What is the Cost to Diagnose the Code?
Labor: 1.0
To diagnose the C1555 Lexus 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 C1555 Lexus Code
1. What are the common symptoms of OBDII code C1555 related to power steering motor relay welding failure in a Lexus?
- Common symptoms include loss of power steering assistance, illuminated power steering warning light on the dashboard, and difficulty steering at lower speeds.
2. What causes the power steering motor relay welding failure in a Lexus, triggering OBDII code C1555?
- The primary cause is a fault in the power steering motor relay, leading to welding failure due to excessive current draw or other electrical issues.
3. How can I diagnose if OBDII code C1555 in my Lexus is indeed caused by power steering motor relay welding failure?
- A diagnostic scan tool can be used to retrieve the error code and confirm the specific issue. Additionally, inspecting the power steering motor relay for signs of damage can help pinpoint the problem.
4. Can driving with OBDII code C1555 due to power steering motor relay welding failure be dangerous?
- Driving with this issue can be unsafe, especially at lower speeds where steering effort is increased. It is recommended to address the problem promptly to ensure safe driving conditions.
5. What are the repair options for resolving OBDII code C1555 related to power steering motor relay welding failure in a Lexus?
- Repair options include replacing the faulty power steering motor relay with a new one, checking and correcting any underlying electrical issues, and clearing the error code from the vehicle's system.
6. Is it possible to reset OBDII code C1555 in a Lexus related to power steering motor relay welding failure without fixing the underlying issue?
- While it is possible to clear the error code temporarily, it is not recommended as the root cause, the power steering motor relay welding failure, would persist and potentially lead to further problems.
7. Can I fix the power steering motor relay welding failure causing OBDII code C1555 in my Lexus myself?
- Depending on your experience with automotive repairs and access to tools, replacing the power steering motor relay can be done as a DIY repair. However, if unsure, it is advisable to seek professional assistance.
8. Will replacing the power steering motor relay prevent OBDII code C1555 from reoccurring in my Lexus?
- Replacing the power steering motor relay should resolve the issue and prevent the recurrence of OBDII code C1555 as long as the new relay is functioning correctly and there are no other underlying problems.
9. Are there any preventive maintenance tips to avoid power steering motor relay welding failure and OBDII code C1555 in a Lexus?
- Regularly inspecting the power steering system, ensuring proper electrical connections, and addressing any warning signs promptly can help prevent power steering motor relay welding failure and related OBDII codes.
10. Can OBDII code C1555 related to power steering motor relay welding failure in a Lexus affect other vehicle systems?
- While the primary impact is on the power steering system, unresolved issues leading to this code can potentially affect other electrical components or systems in the vehicle, emphasizing the importance of timely repairs.
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