What Does B2244 Mean?
This diagnostic trouble code indicates that the Body Control Module (BCM) has detected an abnormal electrical condition in the driver-side sliding door ajar switch circuit. Specifically, the circuit voltage is being pulled to ground when it should be at a higher reference voltage, suggesting a short to ground condition. This affects the vehicle's ability to properly detect whether the sliding door is open or closed, impacting interior lighting, security systems, and door lock functions.
Common Causes
45%
Damaged wiring harness or chafed wire insulation in the door jamb area causing short to ground
30%
Faulty driver sliding door ajar switch with internal short to ground
15%
Corroded or moisture-damaged electrical connector at door ajar switch causing ground fault
10%
Failed Body Control Module with internal circuit fault on door ajar input
Diagnostic Steps
1
Step 1: Perform visual inspection of the driver sliding door ajar switch wiring harness from the door jamb through the flexible conduit into the door. Look for chafed, pinched, or damaged wires, particularly where the harness flexes during door operation. Check for exposed copper wire contacting metal surfaces.
2
Step 2: Disconnect the driver sliding door ajar switch connector and measure resistance between the switch signal wire terminal (BCM side) and known good chassis ground using a digital multimeter. Reading should be infinite (open circuit); any continuity indicates a wire-to-ground short in the harness.
3
Step 3: If harness tests good, measure resistance across the door ajar switch terminals with switch in both open and closed positions. Verify switch operates correctly per manufacturer specifications (typically closed when door open, open when door closed). Check for any abnormal low resistance to switch mounting bracket indicating internal short.
4
Step 4: Inspect the door ajar switch connector for corrosion, pushed-back pins, or moisture intrusion. Clean connector terminals with electrical contact cleaner and check terminal tension. Ensure connector seals are intact and properly seated.
5
Step 5: If all components and wiring test normal, suspect BCM internal circuit fault. Verify BCM ground connections are clean and tight. Check for BCM technical service bulletins or software updates. May require BCM replacement if all other components are verified functional.
6
Step 6: After repairs, clear codes, cycle the sliding door multiple times through full range of motion, and verify code does not return. Confirm interior lights, door locks, and security system respond correctly to door position.
Estimated Repair Cost
$100 - $450
Parts + labor, varies by vehicle and location
This diagnostic trouble code indicates that the Body Control Module (BCM) has detected an abnormal electrical condition in the driver-side sliding door ajar switch circuit. Specifically, the circuit voltage is being pulled to ground when it should be at a higher reference voltage, suggesting a short...
The most common cause of B2244 (Driver Sliding Door Ajar Circuit Short to GND) is: Damaged wiring harness or chafed wire insulation in the door jamb area causing short to ground
Typical repair costs for B2244 range from $100 to $450, depending on the vehicle, location, and whether you do it yourself or go to a shop.
Safe to continue driving. This code affects convenience features like interior lights, door lock operation, and security system monitoring, but does not impact vehicle drivability or safety systems. Repair at earliest convenience to restore proper door monitoring function.
Start by connecting an OBD2 scanner to read the code and any freeze frame data. Then follow the diagnostic steps specific to B2244 to identify the root cause.
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Quick Info
Category
Body
System
Body Control System
Difficulty
Type
Generic (SAE)
Recommended Tools
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