Power Cable For Power Sliding Door Broken
The power cable connecting to your power sliding door has broken or lost electrical connection, like a severed extension cord that can no longer deliver power. The door won't operate electrically until the cable is repaired or replaced.
The body control module monitors voltage and current draw on the sliding door power circuit. It detects cable continuity by measuring resistance and amperage during door actuation commands. A broken cable causes open-circuit voltage or excessive resistance that exceeds normal operating thresholds.
| Parameter | Normal Range | Fault Condition |
|---|---|---|
| Cable Voltage | 12-14.4V under load | 0V or >14.4V / erratic fluctuation |
| Circuit Resistance | <2 ohms | >10 ohms or open circuit (infinite) |
Code B2238 is a low-severity fault. Your vehicle is generally safe to drive to a workshop for diagnosis. However, do not ignore it indefinitely — low-severity codes often indicate developing problems that become expensive if neglected. Book a diagnostic appointment within 2–4 weeks. If you notice any additional symptoms (rough running, power loss, unusual smells), treat it as higher priority.
Once the fault is repaired, B2238 can be cleared using any OBD-II scanner. Connect the scanner, navigate to "Clear Codes" or "Erase DTCs," and confirm. The check engine light turns off immediately.
The code will return if the root cause was not actually fixed. The ECM re-detects the fault within 1–3 drive cycles and sets the code again.