P1900 Audi Code - Engine Coolant Blower Motor Speed 2 Open Circuit/Short To Ground
Quick Answer
The Engine Control Module (ECM) monitors the Engine Coolant Blower Motor. Common causes include Faulty Engine Coolant Blower Motor, Engine Coolant Blower Motor harness is open or shorted, Engine Coolant Blower Motor 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
- P1900 Audi indicates Engine Coolant Blower Motor Speed 2 Open Circuit/Short To Ground.
- Common causes
- Common causes include Faulty Engine Coolant Blower Motor, Engine Coolant Blower Motor harness is open or shorted, Engine Coolant Blower Motor 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 P1900 Audi Description
What are the Possible Causes of the DTC P1900 Audi?
- Faulty Engine Coolant Blower Motor
- Engine Coolant Blower Motor harness is open or shorted
- Engine Coolant Blower Motor circuit poor electrical connection
How to Fix the DTC P1900 Audi?
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 P1900 Audi 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 P1900 Audi Code
1. What does the OBDII code P1900 mean for an Audi?
P1900 indicates an issue with the Engine Coolant Blower Motor Speed 2 circuit, specifically an open circuit or a short to ground.
2. What are the symptoms of the P1900 code in an Audi?
Common symptoms include engine overheating, reduced cooling performance, a non-functional blower motor, or the activation of the Check Engine Light.
3. What causes the P1900 code to appear on an Audi?
Causes may include a faulty blower motor, damaged wiring or connectors in the circuit, a blown fuse, or a malfunctioning control module.
4. How can I diagnose the P1900 code on my Audi?
Start by inspecting the blower motor, wiring, and connectors for damage or corrosion. Use a multimeter to test for continuity and voltage in the circuit.
5. Can I drive my Audi with the P1900 code?
Driving with the P1900 code is not recommended, as engine overheating can cause severe damage if the cooling system is not functioning properly.
6. How do I fix the P1900 code on my Audi?
Repairs may include replacing the blower motor, fixing or replacing damaged wiring, checking and replacing fuses, or reprogramming or replacing the control module.
7. How much does it cost to repair the P1900 code on an Audi?
Repair costs can vary widely depending on the exact cause but may range from $100 to $500, including parts and labor.
8. Can a blown fuse cause the P1900 code in an Audi?
Yes, a blown fuse in the blower motor circuit can trigger the P1900 code.
9. Will resetting the Check Engine Light fix the P1900 code?
Resetting the light may temporarily clear the code, but the underlying issue must be resolved to prevent it from returning.
10. Is the P1900 code common in Audi vehicles?
While not extremely common, it can occur, particularly in older or high-mileage vehicles where wiring and components may degrade.
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