P1909 Volkswagen Code - Transmission Temperature Sensor Circuit Open or Shorted to Power Or Ground
Quick Answer
P1909 Volkswagen indicates Transmission Temperature Sensor Circuit Open or Shorted to Power Or Ground. Common causes include Faulty Transmission Temperature Sensor, Transmission Temperature Sensor harness is open or shorted, Transmission Temperature Sensor 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
- P1909 Volkswagen indicates Transmission Temperature Sensor Circuit Open or Shorted to Power Or Ground.
- Common causes
- Common causes include Faulty Transmission Temperature Sensor, Transmission Temperature Sensor harness is open or shorted, Transmission Temperature Sensor 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 P1909 Volkswagen Description
What are the Possible Causes of the DTC P1909 Volkswagen?
- Faulty Transmission Temperature Sensor
- Transmission Temperature Sensor harness is open or shorted
- Transmission Temperature Sensor circuit poor electrical connection
How to Fix the DTC P1909 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 P1909 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 P1909 Volkswagen code?
Need more information on how to fix the P1909 Volkswagen code? Get Access to Factory Service Manuals
Need Help with the Code?
Get the P1909 Volkswagen code diagnosed by a professional: Find a repair shop in your area
Frequently Asked Questions about P1909 Volkswagen Code
1. What does the OBDII code P1909 mean on a Volkswagen?
The P1909 code indicates a problem with the transmission temperature sensor circuit, which may be open or shorted to power or ground.
2. What are the symptoms of the P1909 code in a Volkswagen?
Symptoms may include erratic or harsh shifting, the transmission slipping, reduced fuel efficiency, or the transmission going into limp mode.
3. What causes the P1909 code to appear in a Volkswagen?
Common causes include a faulty transmission temperature sensor, damaged wiring or connectors, or issues with the vehicle's powertrain control module (PCM).
4. Can I drive my Volkswagen with the P1909 code?
Driving with the P1909 code is not recommended as it can cause transmission damage or unsafe driving conditions due to shifting issues.
5. How do I diagnose the P1909 code in a Volkswagen?
Diagnosis involves checking the transmission temperature sensor, inspecting the wiring and connectors for damage, and testing the circuit for continuity and shorts.
6. How do I fix the P1909 code on my Volkswagen?
Repairs may include replacing the transmission temperature sensor, repairing or replacing damaged wiring, or addressing issues with the PCM.
7. How much does it cost to fix the P1909 code in a Volkswagen?
The repair cost depends on the specific issue but typically ranges from $150 to $400, including parts and labor.
8. Can a faulty transmission temperature sensor trigger the P1909 code?
Yes, a malfunctioning transmission temperature sensor is a common cause of the P1909 code.
9. Does the P1909 code automatically mean I need a new transmission?
No, the P1909 code typically relates to the sensor or its circuit and doesn’t necessarily indicate a need for a new transmission.
10. Will clearing the P1909 code fix the problem in my Volkswagen?
Clearing the code may temporarily reset the check engine light, but the underlying issue must be fixed to prevent the code from returning.
Discuss the causes and fixes for P1909 Volkswagen OBDII Code
Code P1909 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.
