OBD Guide
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B117B

Latch Motor Circuit Open

B117B is an OBD-II diagnostic trouble code meaning: Latch Motor Circuit Open. Common causes: broken wiring harness, lock motor malfunction. Estimated repair cost: $56–167.

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

Symptoms

  • The door or trunk lid does not open automatically
  • The lock does not respond to commands from the key fob
  • Clicking or no sounds from the lock motor

Causes

  • Broken wiring harness
  • Lock motor malfunction
  • Oxidation or damage to connector contacts
  • Problems with the control module

How to Fix

  1. Check the integrity of the lock circuit wiring harness
  2. Test the operation of the lock motor
  3. Clean or replace connectors
  4. Check the control module (if necessary)

Related codes

B117AB117CB117D

FAQ

What does the B117B code mean?

B117B is an OBD-II diagnostic trouble code that indicates: Latch Motor Circuit Open

What causes a B117B error code?

The most common causes of B117B include: Broken wiring harness; Lock motor malfunction; Oxidation or damage to connector contacts; Problems with the control module.

How do I fix a B117B diagnostic trouble code?

To fix B117B: Check the integrity of the lock circuit wiring harness. Test the operation of the lock motor. Clean or replace connectors. For a complete diagnosis, use an OBD-II scanner.

Is it safe to drive with B117B?

Limited driving only, diagnose soon

How much does it cost to fix B117B?

The estimated repair cost for B117B is $56–167. Actual cost depends on your vehicle, location, and labor rates.

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See also: Russian version · NationStat