P084D

Transmission Fluid Pressure Sensor/Switch H Circuit High

Severity

⚠️ Medium

Can you drive?

Limited driving only, diagnose soon

Approx. repair cost

$17–50 (est.)

Symptoms

Incorrect gear shifting
Car jerking when driving
The CHECK ENGINE indicator light comes on.
Transition to emergency mode of operation of the transmission

Causes

Transmission fluid pressure sensor malfunction
Open or short circuit in the sensor circuit
Poor contact in the sensor connector
Transmission control module (TCM) malfunction

How to Fix

Check the level and condition of the transmission fluid
Visually inspect the sensor circuit for damage
Check the resistance and signal of the pressure sensor
Replace transmission fluid pressure sensor if necessary
Scan TCM error memory

Related codes

P0841 P0842 P0843