P084C
Transmission Fluid Pressure Sensor/Switch H Circuit Low
P084C is an OBD-II diagnostic trouble code meaning: Transmission Fluid Pressure Sensor/Switch H Circuit Low. Common causes: transmission fluid pressure sensor malfunction, open or short circuit in the sensor circuit. Estimated repair cost: $28–89.
Symptoms
- The car goes into emergency gearbox mode
- Difficulty shifting gears
- Increased fuel consumption
- Check Engine light comes on
- Reduced vehicle dynamics
Causes
- Transmission fluid pressure sensor malfunction
- Open or short circuit in the sensor circuit
- Poor contact in the sensor connector
- Problems with power or grounding of the circuit
- Transmission control module (TCM) malfunction
How to Fix
- Check the level and condition of the transmission fluid
- Inspect the sensor wiring and connectors for damage
- Check the power supply and grounding of the sensor circuit
- Test or replace pressure sensor
- If necessary, diagnose the TCM
Related codes
Error P084C by Vehicle Brand
FAQ
What does the P084C code mean?
P084C is an OBD-II diagnostic trouble code that indicates: Transmission Fluid Pressure Sensor/Switch H Circuit Low
What causes a P084C error code?
The most common causes of P084C include: Transmission fluid pressure sensor malfunction; Open or short circuit in the sensor circuit; Poor contact in the sensor connector; Problems with power or grounding of the circuit.
How do I fix a P084C diagnostic trouble code?
To fix P084C: Check the level and condition of the transmission fluid. Inspect the sensor wiring and connectors for damage. Check the power supply and grounding of the sensor circuit. For a complete diagnosis, use an OBD-II scanner.
Is it safe to drive with P084C?
Limited driving only, diagnose soon
How much does it cost to fix P084C?
The estimated repair cost for P084C is $28–89. Actual cost depends on your vehicle, location, and labor rates.
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