OBD Guide
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B1452

Tailgate/Liftgate/Boot/Trunk Latch Release Actuator

B1452 is an OBD-II diagnostic trouble code meaning: Tailgate/Liftgate/Boot/Trunk Latch Release Actuator. Common causes: open or shorted wiring harness, malfunction of the actuator (solenoid). Estimated repair cost: $33–167.

Severity
⚠️ Medium
Can you drive?
Yes, but get it checked soon
Approx. repair cost
$33–167 (est.)

Symptoms

  • Trunk won't open with button
  • Trunk won't open with remote key
  • Emergency lamp flashes when trying to open

Causes

  • Open or shorted wiring harness
  • Malfunction of the actuator (solenoid)
  • Body Control Module (BCM) Problems
  • Oxidation of contacts in connectors
  • Mechanical damage to the lock

How to Fix

  1. Checking the trunk circuit fuse
  2. Diagnostics of the condition of the wiring harness
  3. Checking the functionality of the actuator
  4. Checking Signals with BCM
  5. Replacing damaged components

Related codes

B1453B1454B1455

FAQ

What does the B1452 code mean?

B1452 is an OBD-II diagnostic trouble code that indicates: Tailgate/Liftgate/Boot/Trunk Latch Release Actuator

What causes a B1452 error code?

The most common causes of B1452 include: Open or shorted wiring harness; Malfunction of the actuator (solenoid); Body Control Module (BCM) Problems; Oxidation of contacts in connectors.

How do I fix a B1452 diagnostic trouble code?

To fix B1452: Checking the trunk circuit fuse. Diagnostics of the condition of the wiring harness. Checking the functionality of the actuator. For a complete diagnosis, use an OBD-II scanner.

Is it safe to drive with B1452?

Yes, but get it checked soon

How much does it cost to fix B1452?

The estimated repair cost for B1452 is $33–167. Actual cost depends on your vehicle, location, and labor rates.

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See also: Russian version · NationStat