OBD2 code P0809: Transmission - Gear/clutch selection
Gear or clutch selection fault.
Detected Root Component
Powertrain Component
Observed Symptoms
- Hard or abrupt gear shifting
- Transmission stuck in one gear
- Transmission slippage
Possible Causes
- Faulty solenoid valve
- Faulty transmission speed sensor
- Damaged transmission harness
- Faulty TCM computer
Tools Required
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Parts likely to be the cause (Moteur (général))
Moteur (général)
Photo d'illustration : Moteur (général)
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Frequently asked questions about code P0809
What does code P0809 mean? ▾
OBD2 code P0809: Transmission - Gear/clutch selection. Gear or clutch selection fault.
What are the symptoms of code P0809? ▾
Code P0809 may cause: Hard or abrupt gear shifting, Transmission stuck in one gear, Transmission slippage. The intensity of these symptoms varies depending on the vehicle and driving conditions.
What causes code P0809? ▾
The most common causes of code P0809 are: Faulty solenoid valve, Faulty transmission speed sensor, Damaged transmission harness, Faulty TCM computer. A proper OBD2 diagnostic will pinpoint the exact cause.
Is it serious to drive with code P0809? ▾
Yes, code P0809 is critical (Critical). Avoid driving and consult a professional promptly to prevent major damage.
How do I fix code P0809? ▾
Start by reading the code with an OBD2 scanner, then follow the interactive decision tree on this page. Priority causes to check: Faulty solenoid valve, Faulty transmission speed sensor, Damaged transmission harness, Faulty TCM computer. Difficulty: Medium · Estimated time: 30-60min.