OBD Guide
ENFRDEESPT

B18DB

Passenger Door Pawl Switch Stuck

B18DB is an OBD-II diagnostic trouble code meaning: Passenger Door Pawl Switch Stuck. Common causes: latch switch mechanism jammed, contamination or oxidation of switch contacts. Estimated repair cost: $33–89.

Severity
⚠️ Medium
Can you drive?
Limited driving only, diagnose soon
Approx. repair cost
$33–89 (est.)

Symptoms

  • Incorrect operation of the central locking
  • False alarm
  • Constant indication of an open door on the instrument panel
  • No response to opening/closing the passenger door

Causes

  • Latch switch mechanism jammed
  • Contamination or oxidation of switch contacts
  • Open or shorted wiring harness
  • Body Control Module (BCM) Malfunction
  • Mechanical damage to the door latch

How to Fix

  1. Visual inspection of the door latch and switch
  2. Cleaning the switch contacts
  3. Checking the integrity of the wiring harness
  4. Replacing the latch switch if necessary
  5. BCM diagnostics and flashing (if required)

Related codes

B18DAB18DCB18DD

FAQ

What does the B18DB code mean?

B18DB is an OBD-II diagnostic trouble code that indicates: Passenger Door Pawl Switch Stuck

What causes a B18DB error code?

The most common causes of B18DB include: Latch switch mechanism jammed; Contamination or oxidation of switch contacts; Open or shorted wiring harness; Body Control Module (BCM) Malfunction.

How do I fix a B18DB diagnostic trouble code?

To fix B18DB: Visual inspection of the door latch and switch. Cleaning the switch contacts. Checking the integrity of the wiring harness. For a complete diagnosis, use an OBD-II scanner.

Is it safe to drive with B18DB?

Limited driving only, diagnose soon

How much does it cost to fix B18DB?

The estimated repair cost for B18DB is $33–89. Actual cost depends on your vehicle, location, and labor rates.

FRDEESPT

See also: Russian version · NationStat