OBD Guide

P27ED

Transmission Range Control A Position Sensor/Switch Circuit Low

P27ED is an OBD-II diagnostic trouble code meaning: Transmission Range Control A Position Sensor/Switch Circuit Low. Common causes: selector lever position sensor malfunction, open or short circuit in the sensor circuit. Estimated repair cost: $17–67.

Severity
⚠️ Medium
Can you drive?
Limited driving only, diagnose soon
Approx. repair cost
$17–67 (est.)

Symptoms

  • Incorrect display of selector position on the instrument panel
  • Gear shifting problems
  • The gearbox goes into emergency mode
  • Check Engine light comes on
  • The car may not start in P or N position

Causes

  • Selector lever position sensor malfunction
  • Open or short circuit in the sensor circuit
  • Poor contact in the sensor connector
  • Wiring harness damage
  • Malfunction of the automatic transmission control unit

How to Fix

  1. Check the integrity of the sensor circuit
  2. Inspect connectors and contacts for corrosion or damage
  3. Check sensor resistance and voltage
  4. Replace the selector lever position sensor if necessary
  5. Check and replace wiring harness if necessary

Related codes

Error P27ED by Vehicle Brand

FAQ

What does the P27ED code mean?

P27ED is an OBD-II diagnostic trouble code that indicates: Transmission Range Control A Position Sensor/Switch Circuit Low

What causes a P27ED error code?

The most common causes of P27ED include: Selector lever position sensor malfunction; Open or short circuit in the sensor circuit; Poor contact in the sensor connector; Wiring harness damage.

How do I fix a P27ED diagnostic trouble code?

To fix P27ED: Check the integrity of the sensor circuit. Inspect connectors and contacts for corrosion or damage. Check sensor resistance and voltage. For a complete diagnosis, use an OBD-II scanner.

Is it safe to drive with P27ED?

Limited driving only, diagnose soon

How much does it cost to fix P27ED?

The estimated repair cost for P27ED is $17–67. Actual cost depends on your vehicle, location, and labor rates.

See also: Russian version · NationStat