P0879

Transmission Fluid Pressure Sensor/Switch D Circuit Intermittent

Severity

⚠️ Medium

Can you drive?

Yes, but get it checked soon

Approx. repair cost

$17–56 (est.)

Symptoms

Incorrect gear shifting
Hard gear shifts
Transmission transition to emergency mode
Check Engine light comes on
Reduced transmission efficiency

Causes

Transmission fluid pressure sensor fault D
Damaged or corroded wiring
Poor contact in connectors
Transmission control module (TCM) problems
Low transmission fluid level

How to Fix

Check the level and condition of the transmission fluid
Inspect the sensor wiring and connectors for damage
Check the resistance and signal of the pressure sensor
Replace transmission fluid pressure sensor if necessary
Clean or replace damaged wires and connectors

Related codes

P0876 P0877 P0878