OBD Guide

P084E

Transmission Fluid Pressure Sensor/Switch H Circuit Intermittent

Severity
⚠️ Medium
Can you drive?
Limited driving only, diagnose soon
Approx. repair cost
$28–89 (est.)

Symptoms

  • Incorrect gear shifting
  • Hard or abrupt shifts
  • Automatic transmission goes into emergency mode
  • Check Engine Light Is On
  • Reduced transmission efficiency

Causes

  • Open or short circuit in the sensor circuit
  • Transmission fluid pressure sensor malfunction
  • Poor contact in the sensor connector
  • Wiring harness damage
  • Transmission control unit malfunction (rare)

How to Fix

  1. Check the continuity of the fluid pressure sensor circuit
  2. Inspect the sensor connectors for oxidation or damage.
  3. Check the resistance and signal of the pressure sensor
  4. If necessary, replace the transmission fluid pressure sensor
  5. Check the level and condition of the transmission fluid

Related codes

Error P084E by Vehicle Brand