OBD Guide
ENFRDEESPT

B2591

No PSD Detent Switch Detected On Unlatch

B2591 is an OBD-II diagnostic trouble code meaning: No PSD Detent Switch Detected On Unlatch. Common causes: faulty psd lock sensor, open or short circuit in wiring harness. Estimated repair cost: $56–167.

Severity
⚠️ Medium
Can you drive?
Limited driving only, diagnose soon
Approx. repair cost
$56–167 (est.)

Symptoms

  • The door does not lock in the unlocked position
  • Incorrect operation of the electric door drive
  • The malfunction indicator on the instrument panel lights up

Causes

  • Faulty PSD lock sensor
  • Open or short circuit in wiring harness
  • Poor contact in connectors
  • Door control unit malfunction

How to Fix

  1. Check the status of the PSD lock sensor
  2. Check the integrity of the wiring harness and contacts in the connectors
  3. Test the door control unit
  4. Replace sensor or repair wiring harness if necessary

Related codes

B2590B2592B2580

FAQ

What does the B2591 code mean?

B2591 is an OBD-II diagnostic trouble code that indicates: No PSD Detent Switch Detected On Unlatch

What causes a B2591 error code?

The most common causes of B2591 include: Faulty PSD lock sensor; Open or short circuit in wiring harness; Poor contact in connectors; Door control unit malfunction.

How do I fix a B2591 diagnostic trouble code?

To fix B2591: Check the status of the PSD lock sensor. Check the integrity of the wiring harness and contacts in the connectors. Test the door control unit. For a complete diagnosis, use an OBD-II scanner.

Is it safe to drive with B2591?

Limited driving only, diagnose soon

How much does it cost to fix B2591?

The estimated repair cost for B2591 is $56–167. Actual cost depends on your vehicle, location, and labor rates.

FRDEESPT

See also: Russian version · NationStat