OBD Guide

B1338

Door Ajar Right Rear Circuit Short To Ground

B1338 is an OBD-II diagnostic trouble code meaning: Door Ajar Right Rear Circuit Short To Ground. Common causes: wiring harness damage, short circuit to ground in the sensor circuit. Estimated repair cost: $22–89.

Severity
⚠️ Medium
Can you drive?
Limited driving only, diagnose soon
Approx. repair cost
$22–89 (est.)

Symptoms

  • Inoperative right rear door sensor
  • Incorrect door status display on dashboard
  • Activation of interior lighting when the door is closed
  • Warning message on dashboard

Causes

  • Wiring harness damage
  • Short circuit to ground in the sensor circuit
  • Door sensor malfunction
  • Corrosion or oxidation of contacts
  • Problems with the body control module (rare)

How to Fix

  1. Visual inspection of the wiring harness in the area of the right rear door
  2. Checking the continuity of the sensor circuit using a multimeter
  3. Checking the door sensor resistance
  4. Cleaning Contacts and Terminals
  5. Replace the sensor or repair the wiring harness if necessary

Related codes

FAQ

What does the B1338 code mean?

B1338 is an OBD-II diagnostic trouble code that indicates: Door Ajar Right Rear Circuit Short To Ground

What causes a B1338 error code?

The most common causes of B1338 include: Wiring harness damage; Short circuit to ground in the sensor circuit; Door sensor malfunction; Corrosion or oxidation of contacts.

How do I fix a B1338 diagnostic trouble code?

To fix B1338: Visual inspection of the wiring harness in the area of the right rear door. Checking the continuity of the sensor circuit using a multimeter. Checking the door sensor resistance. For a complete diagnosis, use an OBD-II scanner.

Is it safe to drive with B1338?

Limited driving only, diagnose soon

How much does it cost to fix B1338?

The estimated repair cost for B1338 is $22–89. Actual cost depends on your vehicle, location, and labor rates.

See also: Russian version · NationStat