OBD Guide

P28E9

Shift Motor Position Sensor Circuit Low

P28E9 is an OBD-II diagnostic trouble code meaning: Shift Motor Position Sensor Circuit Low. Common causes: open or short circuit in the sensor circuit, shift motor position sensor malfunction. Estimated repair cost: $17–56.

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

Symptoms

  • Difficulty shifting gears
  • Jerks when shifting gears
  • Check Engine Light Illuminates
  • Switching to emergency mode of the gearbox

Causes

  • Open or short circuit in the sensor circuit
  • Shift motor position sensor malfunction
  • Power or grounding problems
  • Malfunction of the transmission control unit
  • Wiring harness damage

How to Fix

  1. Check the integrity of the sensor circuit
  2. Check the supply voltage and grounding of the sensor
  3. Replace the shift motor position sensor
  4. Check and repair damaged wires
  5. Check the operation of the gearbox control unit

Related codes

Error P28E9 by Vehicle Brand

FAQ

What does the P28E9 code mean?

P28E9 is an OBD-II diagnostic trouble code that indicates: Shift Motor Position Sensor Circuit Low

What causes a P28E9 error code?

The most common causes of P28E9 include: Open or short circuit in the sensor circuit; Shift motor position sensor malfunction; Power or grounding problems; Malfunction of the transmission control unit.

How do I fix a P28E9 diagnostic trouble code?

To fix P28E9: Check the integrity of the sensor circuit. Check the supply voltage and grounding of the sensor. Replace the shift motor position sensor. For a complete diagnosis, use an OBD-II scanner.

Is it safe to drive with P28E9?

Limited driving only, diagnose soon

How much does it cost to fix P28E9?

The estimated repair cost for P28E9 is $17–56. Actual cost depends on your vehicle, location, and labor rates.

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