OBD Guide
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B2637

Driver B/L Door Fail

B2637 is an OBD-II diagnostic trouble code meaning: Driver B/L Door Fail. Common causes: open/short circuit in the door wiring harness, door lock solenoid malfunction. Estimated repair cost: $17–89.

Severity
⚠️ Medium
Can you drive?
Yes, but get it checked soon
Approx. repair cost
$17–89 (est.)

Symptoms

  • Driver's door automatic lock does not work
  • Problems with central locking
  • Glitches in the operation of the power window
  • The security system malfunction indicator lights up

Causes

  • Open/short circuit in the door wiring harness
  • Door lock solenoid malfunction
  • Problems with the BCM module
  • Oxidation of contacts
  • Mechanical damage to the door lock

How to Fix

  1. Check the integrity of the wiring harness in the door hinges
  2. Diagnose the resistance of the locking solenoid
  3. Read the operating parameters of the BCM block with a scanner
  4. Check the condition of connectors and contacts
  5. If necessary, replace the faulty component

Related codes

B2635B2636B2638B2640

FAQ

What does the B2637 code mean?

B2637 is an OBD-II diagnostic trouble code that indicates: Driver B/L Door Fail

What causes a B2637 error code?

The most common causes of B2637 include: Open/short circuit in the door wiring harness; Door lock solenoid malfunction; Problems with the BCM module; Oxidation of contacts.

How do I fix a B2637 diagnostic trouble code?

To fix B2637: Check the integrity of the wiring harness in the door hinges. Diagnose the resistance of the locking solenoid. Read the operating parameters of the BCM block with a scanner. For a complete diagnosis, use an OBD-II scanner.

Is it safe to drive with B2637?

Yes, but get it checked soon

How much does it cost to fix B2637?

The estimated repair cost for B2637 is $17–89. Actual cost depends on your vehicle, location, and labor rates.

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See also: Russian version · NationStat