Power Sliding Detent (Latch) Circuit Failure
The power sliding detent (latch) mechanism that holds your seat or door in position isn't responding correctly to electrical commands. It's like a motorized lock that's stuck or not communicating properly with the vehicle's brain.
The ECU monitors voltage and current draw from the power detent solenoid or motor circuit during actuation commands. It checks for proper circuit continuity, short-to-ground, short-to-power, and open circuit conditions. When resistance or current falls outside expected parameters during commanded operation, the fault is triggered.
| Parameter | Normal Range | Fault Condition |
|---|---|---|
| Solenoid Current Draw | 2-5 amps during activation | No current, excessive current (>8A), or intermittent dropout |
| Circuit Voltage | 11-14V during operation | <9V or electrical dropout detected |
Code B2374 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, B2374 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.