OBD Guide

P28DE

Clutch B Pressure Sensor Circuit High

P28DE is an OBD-II diagnostic trouble code meaning: Clutch B Pressure Sensor Circuit High. Common causes: short to power in the sensor circuit, clutch pressure sensor malfunction. Estimated repair cost: $33–167.

Severity
⚠️ Medium
Can you drive?
Do not drive — repair immediately
Approx. repair cost
$33–167 (est.)

Symptoms

  • Rough or harsh gear shifting
  • Delays when shifting gears
  • Power loss during acceleration
  • Increased vibrations
  • Activating emergency transmission mode

Causes

  • Short to power in the sensor circuit
  • Clutch pressure sensor malfunction
  • Damage to wiring or connectors
  • Problems in the transmission control unit
  • Mechanical faults in the hydraulic clutch system

How to Fix

  1. Check the integrity of the wiring and connectors
  2. Measure the resistance and voltage of the sensor
  3. Check pressure parameters in the clutch system
  4. Replace pressure sensor if necessary
  5. Test the operation of the transmission control unit

Related codes

Error P28DE by Vehicle Brand

FAQ

What does the P28DE code mean?

P28DE is an OBD-II diagnostic trouble code that indicates: Clutch B Pressure Sensor Circuit High

What causes a P28DE error code?

The most common causes of P28DE include: Short to power in the sensor circuit; Clutch pressure sensor malfunction; Damage to wiring or connectors; Problems in the transmission control unit.

How do I fix a P28DE diagnostic trouble code?

To fix P28DE: Check the integrity of the wiring and connectors. Measure the resistance and voltage of the sensor. Check pressure parameters in the clutch system. For a complete diagnosis, use an OBD-II scanner.

Is it safe to drive with P28DE?

Do not drive — repair immediately

How much does it cost to fix P28DE?

The estimated repair cost for P28DE is $33–167. Actual cost depends on your vehicle, location, and labor rates.

See also: Russian version · NationStat