OBD Guide

P28DB

Clutch B Motor Position Sensor Circuit Range/Performance

Severity
⚠️ Medium
Can you drive?
Limited driving only, diagnose soon
Approx. repair cost
$17–56 (est.)

Symptoms

  • Incorrect clutch operation
  • Problems when shifting gears
  • The Check Engine light comes on
  • Reduced vehicle dynamics
  • Possible jerks when switching

Causes

  • Clutch motor position sensor fault B
  • Open or short circuit in the sensor circuit
  • Poor contact in the sensor connector
  • Mechanical failure of the clutch motor
  • Problems with the transmission control unit

How to Fix

  1. Check the integrity of the sensor circuit
  2. Inspect the connectors and contacts of the sensor
  3. Check sensor resistance
  4. Replace position sensor if necessary
  5. Check the operation of the clutch motor

Related codes

Error P28DB by Vehicle Brand