OBD Guide

P09A5

Gate Select Position Circuit B High

P09A5 is an OBD-II diagnostic trouble code meaning: Gate Select Position Circuit B High. Common causes: open or short circuit in the sensor circuit, selector lever position sensor malfunction. Estimated repair cost: $17–56.

Severity
⚠️ Medium
Can you drive?
Do not drive — repair immediately
Approx. repair cost
$17–56 (est.)

Symptoms

  • Incorrect display of gear selector position
  • Gear shifting problems
  • Check Engine light comes on
  • The car may not start
  • The gearbox goes into emergency mode

Causes

  • Open or short circuit in the sensor circuit
  • Selector lever position sensor malfunction
  • Problems with the transmission control module
  • Wiring harness damage
  • Contact corrosion

How to Fix

  1. Check the integrity of the sensor circuit
  2. Test the selector lever position sensor
  3. Inspect the wiring harness for damage
  4. Check contacts for corrosion
  5. Replace faulty components

Related codes

Error P09A5 by Vehicle Brand

FAQ

What does the P09A5 code mean?

P09A5 is an OBD-II diagnostic trouble code that indicates: Gate Select Position Circuit B High

What causes a P09A5 error code?

The most common causes of P09A5 include: Open or short circuit in the sensor circuit; Selector lever position sensor malfunction; Problems with the transmission control module; Wiring harness damage.

How do I fix a P09A5 diagnostic trouble code?

To fix P09A5: Check the integrity of the sensor circuit. Test the selector lever position sensor. Inspect the wiring harness for damage. For a complete diagnosis, use an OBD-II scanner.

Is it safe to drive with P09A5?

Do not drive — repair immediately

How much does it cost to fix P09A5?

The estimated repair cost for P09A5 is $17–56. Actual cost depends on your vehicle, location, and labor rates.

See also: Russian version · NationStat