P1903 Volkswagen Code - Engine Coolant Hydraulic Blower Motor Solenoid Short To Positive
Quick Answer
P1903 Volkswagen 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 Volkswagen 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 Volkswagen Description
What are the Possible Causes of the DTC P1903 Volkswagen?
- 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 Volkswagen?
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 Volkswagen 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 Volkswagen code?
Need more information on how to fix the P1903 Volkswagen code? Get Access to Factory Service Manuals
Need Help with the Code?
Get the P1903 Volkswagen code diagnosed by a professional: Find a repair shop in your area
Frequently Asked Questions about P1903 Volkswagen Code
What does the OBDII code P1903 mean for a Volkswagen?
1. P1903 indicates an issue with the Engine Coolant Hydraulic Blower Motor Solenoid, specifically a short to positive in the electrical circuit. 2.
What are the common symptoms of the P1903 code in a Volkswagen?
Symptoms may include engine overheating, the cooling fan not functioning properly, an illuminated check engine light, and potential reduced engine performance. 3.
What causes the P1903 code to appear?
The code is usually caused by a shorted or damaged solenoid, frayed or exposed wiring, corroded electrical connections, or a faulty blower motor relay. 4.
Can I keep driving my Volkswagen with a P1903 code?
Driving with this code may lead to engine overheating, which could cause severe damage. It’s best to address the issue promptly. 5.
How do I diagnose the P1903 code in a Volkswagen?
Start by inspecting the solenoid and its wiring for damage or corrosion, check the blower motor relay, and test the circuit with a multimeter for continuity or short to positive. 6.
How is the P1903 code typically fixed?
Common fixes include repairing or replacing damaged wiring, cleaning corroded connections, replacing the solenoid, or replacing the blower motor relay if defective. 7.
How much does it cost to fix the P1903 code in a Volkswagen?
Repair costs vary but typically range from $100 to $300 depending on whether wiring repairs or part replacements are required. 8.
Will clearing the P1903 code solve the problem?
Clearing the code will temporarily turn off the check engine light, but the underlying issue must be repaired to prevent the code from returning. 9.
What tools are needed to fix the P1903 code?
You may need a multimeter, an OBDII scanner, basic hand tools, and possibly wiring repair kits or replacement parts. 10.
Can a faulty coolant temperature sensor trigger the P1903 code?
While unlikely, a malfunctioning coolant temperature sensor could indirectly contribute to cooling system issues, so it’s worth inspecting if other components check out.
Discuss the causes and fixes for P1903 Volkswagen OBDII Code
Code P1903 Volkswagen comments
No comments found for this page.
Fix Your Car Smarter
Try the New AutoCodes App!
Get complete OBDII diagnostics, repair solutions, and cost estimates, plus AI chat support on demand.
