OBD Guide

P27E9

Transmission Range Control B Circuit Low

P27E9 is an OBD-II diagnostic trouble code meaning: Transmission Range Control B Circuit Low. Common causes: open or short circuit in transmission range control circuit b, gear selector 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

  • Incorrect gear shifting
  • Transmission transition to emergency mode
  • Check Engine light comes on
  • Problems starting the engine
  • Incorrect display of gear selector position on the instrument panel

Causes

  • Open or short circuit in transmission range control circuit B
  • Gear selector position sensor malfunction
  • Damage to connectors or corrosion of contacts
  • Transmission Control Module (TCM) Problems
  • Poor circuit grounding

How to Fix

  1. Check continuity of transmission range control circuit B
  2. Inspect connectors and contacts for damage and corrosion
  3. Check the functionality of the gear selector position sensor
  4. Test the Transmission Control Module (TCM)
  5. Check circuit grounding

Related codes

Error P27E9 by Vehicle Brand

FAQ

What does the P27E9 code mean?

P27E9 is an OBD-II diagnostic trouble code that indicates: Transmission Range Control B Circuit Low

What causes a P27E9 error code?

The most common causes of P27E9 include: Open or short circuit in transmission range control circuit B; Gear selector position sensor malfunction; Damage to connectors or corrosion of contacts; Transmission Control Module (TCM) Problems.

How do I fix a P27E9 diagnostic trouble code?

To fix P27E9: Check continuity of transmission range control circuit B. Inspect connectors and contacts for damage and corrosion. Check the functionality of the gear selector position sensor. For a complete diagnosis, use an OBD-II scanner.

Is it safe to drive with P27E9?

Limited driving only, diagnose soon

How much does it cost to fix P27E9?

The estimated repair cost for P27E9 is $17–56. Actual cost depends on your vehicle, location, and labor rates.

See also: Russian version · NationStat