OBD Guide
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B176E

Roof Latch Lock Sensor

B176E is an OBD-II diagnostic trouble code meaning: Roof Latch Lock Sensor. Common causes: lock sensor malfunction, open or shorted wiring harness. Estimated repair cost: $56–167.

Severity
⚠️ Medium
Can you drive?
Do not drive — repair immediately
Approx. repair cost
$56–167 (est.)

Symptoms

  • Error indication on the instrument panel
  • Sunroof does not open/close
  • Incorrect operation of the sunroof (spontaneous opening/closing)

Causes

  • Lock sensor malfunction
  • Open or shorted wiring harness
  • Damage to sensor contacts
  • Mechanical failure of the hatch lock
  • Problems with the body control module

How to Fix

  1. Check the condition of the sensor and its contacts
  2. Check the integrity of the wiring harness
  3. Test the operation of the hatch lock manually
  4. Replace the lock sensor if necessary
  5. Clean or reset sensor contacts
  6. Check and update the control unit software

Related codes

B176FB1770B1771

FAQ

What does the B176E code mean?

B176E is an OBD-II diagnostic trouble code that indicates: Roof Latch Lock Sensor

What causes a B176E error code?

The most common causes of B176E include: Lock sensor malfunction; Open or shorted wiring harness; Damage to sensor contacts; Mechanical failure of the hatch lock.

How do I fix a B176E diagnostic trouble code?

To fix B176E: Check the condition of the sensor and its contacts. Check the integrity of the wiring harness. Test the operation of the hatch lock manually. For a complete diagnosis, use an OBD-II scanner.

Is it safe to drive with B176E?

Do not drive — repair immediately

How much does it cost to fix B176E?

The estimated repair cost for B176E is $56–167. Actual cost depends on your vehicle, location, and labor rates.

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See also: Russian version · NationStat