P1903 Code - Engine Coolant Hydraulic Blower Motor Solenoid Short To Positive
Quick Answer
P1903 indicates Engine Coolant Hydraulic Blower Motor Solenoid Short To Positive. Common causes include Faulty Engine Coolant Hydraulic Blower Motor Solenoid, Engine Coolant Hydraulic Blower Motor Solenoid harness is open or shorted, Engine Coolant Hydraulic Blower Motor 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
- P1903 indicates Engine Coolant Hydraulic Blower Motor Solenoid Short To Positive.
- Common causes
- Common causes include Faulty Engine Coolant Hydraulic Blower Motor Solenoid, Engine Coolant Hydraulic Blower Motor Solenoid harness is open or shorted, Engine Coolant Hydraulic Blower Motor 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 P1903 Description
What are the Possible Causes of the DTC P1903?
- Faulty Engine Coolant Hydraulic Blower Motor Solenoid
- Engine Coolant Hydraulic Blower Motor Solenoid harness is open or shorted
- Engine Coolant Hydraulic Blower Motor Solenoid circuit poor electrical connection
How to Fix the DTC P1903?
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 P1903 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 P1903 code?
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Get the P1903 code diagnosed by a professional: Find a repair shop in your area
Information for Specific Makes
- P1903 Audi — Engine Coolant Hydraulic Blower Motor Solenoid Short To Positive
- P1903 Ford — Kickdown Solenoid Circuit Low Voltage
- P1903 Volkswagen — Engine Coolant Hydraulic Blower Motor Solenoid Short To Positive
Frequently Asked Questions about P1903 Code
1. What are common symptoms of OBDII code P1903?
- Common symptoms include rough idling, engine overheating, and the blower motor not functioning properly.
2. What causes the Engine Coolant Hydraulic Blower Motor Solenoid Short To Positive code to trigger?
- This code is typically triggered by a short circuit in the wiring or the solenoid itself, causing it to be stuck in the open position.
3. How can I diagnose the cause of OBDII code P1903?
- Use a multimeter to check the wiring and solenoid for continuity and shorts. Also, inspect the connectors for any signs of corrosion or damage.
4. Can I still drive my vehicle with code P1903 present?
- It is not recommended to drive the vehicle with this code present, as it can lead to engine overheating and potential damage to the hydraulic system.
5. How can I repair OBDII code P1903?
- Repairing this code typically involves replacing the faulty solenoid or repairing the wiring harness to resolve the short circuit issue.
6. Is it necessary to clear the code after fixing the issue?
- Yes, it is recommended to clear the code after fixing the issue to reset the system and ensure the problem has been resolved.
7. Are there any preventive measures to avoid OBDII code P1903 from reoccurring?
- Regularly inspecting the wiring harness for damage and ensuring proper maintenance of the hydraulic system can help prevent this code from reoccurring.
8. Can a DIY enthusiast fix OBDII code P1903, or should it be done by a professional?
- Depending on your skill level and knowledge of automotive systems, you may be able to fix this issue yourself. However, if you are unsure, it is best to seek help from a professional.
9. Will OBDII code P1903 affect my vehicle's performance?
- Yes, this code can affect your vehicle's performance by causing issues with engine cooling and the blower motor operation.
10. How long does it typically take to repair OBDII code P1903?
- The repair time for this code can vary depending on the extent of the issue, but it usually takes a few hours to diagnose and fix the problem.
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