What Does B2238 Mean?
This code indicates the Body Control Module (BCM) has detected an open circuit, short circuit, or excessive resistance in the power cable supplying the power sliding door motor. The BCM monitors voltage and current flow to the sliding door actuator and has identified that the power cable is broken, damaged, or disconnected, preventing proper operation of the power sliding door system.
Common Causes
45%
Broken or severed power cable in the door jamb or hinge area due to repeated flexing and wear
30%
Corroded or damaged connector terminals at the sliding door motor or BCM connection points
15%
Chafed or pinched power cable causing intermittent or complete open circuit
10%
Failed sliding door motor causing internal short or open circuit detected as cable fault
Diagnostic Steps
1
Step 1: Perform visual inspection of the power sliding door wiring harness, focusing on the door jamb and hinge areas where cables flex during operation. Look for visible breaks, cuts, chafing, or exposed wires
2
Step 2: Using a digital multimeter, check continuity of the power cable from the BCM connector to the sliding door motor connector with the harness disconnected at both ends. Resistance should be less than 1 ohm for intact cable
3
Step 3: Inspect all connectors in the power sliding door circuit for corrosion, bent pins, or moisture intrusion. Clean connectors with electrical contact cleaner and check for proper terminal tension
4
Step 4: With connectors reconnected, measure voltage at the sliding door motor connector while commanding door operation through the scan tool. Should see battery voltage (12-14V) when activated
5
Step 5: If voltage is present but code persists, perform current draw test on the sliding door motor. Excessive current (over manufacturer specification, typically 15-30 amps) indicates motor failure
6
Step 6: After repairs, clear codes, cycle the power sliding door through multiple open/close operations, and verify no codes return and door operates smoothly
Estimated Repair Cost
$150 - $800
Parts + labor, varies by vehicle and location
This code indicates the Body Control Module (BCM) has detected an open circuit, short circuit, or excessive resistance in the power cable supplying the power sliding door motor. The BCM monitors voltage and current flow to the sliding door actuator and has identified that the power cable is broken, ...
The most common cause of B2238 (Power Cable For Power Sliding Door Broken) is: Broken or severed power cable in the door jamb or hinge area due to repeated flexing and wear
Typical repair costs for B2238 range from $150 to $800, depending on the vehicle, location, and whether you do it yourself or go to a shop.
This is not a safety-critical issue and the vehicle is safe to drive. The power sliding door will not function electrically but can typically be manually operated. Repair at convenience to restore power door functionality.
Start by connecting an OBD2 scanner to read the code and any freeze frame data. Then follow the diagnostic steps specific to B2238 to identify the root cause.
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Quick Info
Category
Body
System
Power Sliding Door System
Difficulty
Type
Generic (SAE)
Recommended Tools
OBD2 Scanner
A quality scan tool helps you read codes, view live data, and clear faults.
