P0846
Transmission Fluid Pressure Sensor/Switch B Circuit Range/Performance
P0846 is an OBD-II diagnostic trouble code meaning: Transmission Fluid Pressure Sensor/Switch B Circuit Range/Performance. Common causes: transmission fluid pressure sensor b malfunction, open or short circuit in the sensor circuit. Estimated repair cost: $17–56.
Symptoms
- Hard gear shifts
- The gearbox goes into emergency mode
- Check Engine light comes on
- Reduced transmission efficiency
- Unusual noises when shifting gears
Causes
- Transmission fluid pressure sensor B malfunction
- Open or short circuit in the sensor circuit
- Poor contact in sensor connectors
- Low transmission fluid level
- Transmission fluid contamination
How to Fix
- Check the level and condition of the transmission fluid
- Visually inspect the sensor wiring and connectors
- Check resistance and sensor signal
- If necessary, replace the pressure sensor
- Clean or replace transmission fluid
Related codes
Error P0846 by Vehicle Brand
FAQ
What does the P0846 code mean?
P0846 is an OBD-II diagnostic trouble code that indicates: Transmission Fluid Pressure Sensor/Switch B Circuit Range/Performance
What causes a P0846 error code?
The most common causes of P0846 include: Transmission fluid pressure sensor B malfunction; Open or short circuit in the sensor circuit; Poor contact in sensor connectors; Low transmission fluid level.
How do I fix a P0846 diagnostic trouble code?
To fix P0846: Check the level and condition of the transmission fluid. Visually inspect the sensor wiring and connectors. Check resistance and sensor signal. For a complete diagnosis, use an OBD-II scanner.
Is it safe to drive with P0846?
Limited driving only, diagnose soon
How much does it cost to fix P0846?
The estimated repair cost for P0846 is $17–56. Actual cost depends on your vehicle, location, and labor rates.
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