P1902 Audi Code - Engine Coolant Blower Motor Run-On Relay Short To Ground
Quick Answer
The Engine Control Module (ECM) monitors the Engine Coolant Blower Motor. Common causes include Faulty Engine Coolant Blower Motor Run-On Relay, Engine Coolant Blower Motor Run-On Relay harness is open or shorted, Engine Coolant Blower Motor Run-On Relay 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
- P1902 Audi indicates Engine Coolant Blower Motor Run-On Relay Short To Ground.
- Common causes
- Common causes include Faulty Engine Coolant Blower Motor Run-On Relay, Engine Coolant Blower Motor Run-On Relay harness is open or shorted, Engine Coolant Blower Motor Run-On Relay 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 P1902 Audi Description
What are the Possible Causes of the DTC P1902 Audi?
- Faulty Engine Coolant Blower Motor Run-On Relay
- Engine Coolant Blower Motor Run-On Relay harness is open or shorted
- Engine Coolant Blower Motor Run-On Relay circuit poor electrical connection
How to Fix the DTC P1902 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 P1902 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 P1902 Audi Code
What does OBDII code P1902 mean for an Audi?
P1902 indicates a short-to-ground issue in the Engine Coolant Blower Motor Run-On Relay circuit.
What are common symptoms of code P1902?
Symptoms may include the engine cooling fan running excessively, overheating, or a check engine light.
What causes code P1902 in an Audi?
Common causes include damaged wiring, a faulty relay, or a short circuit within the blower motor run-on relay.
Can I drive my Audi with a P1902 code?
While the car may still be drivable, ignoring the issue can lead to overheating or further electrical damage.
How is code P1902 diagnosed?
Diagnosis includes inspecting the wiring, testing the relay, and checking the cooling fan circuit for shorts or damage.
What tools are needed to fix P1902?
Basic tools include a multimeter for testing electrical circuits and a scan tool to clear the code after repairs.
How do you repair code P1902?
Repairs may involve replacing the faulty relay, fixing damaged wiring, or addressing any short circuits.
How much does it cost to fix P1902?
Repair costs vary but typically range from $100 to $300 depending on labor and parts.
Can a faulty cooling fan cause P1902?
Yes, a malfunctioning cooling fan can contribute to the short circuit triggering this code.
Will replacing the relay clear the P1902 code?
Replacing a damaged relay can resolve the issue, but the code must be cleared with an OBDII scan tool after repairs.
Discuss the causes and fixes for P1902 Audi OBDII Code
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