OBD-II CODE Medium

B0084

B0084: Seat Switch Circuit Malfunction

Est. Repair Cost

$100 - $300

Difficulty

3/5

Repair Time

1-2 hours

🩺 What Does B0084 Mean?

The body control module (BCM) has detected a malfunction in the seat switch circuit, which controls the seat position, lumbar support, or recline function.

⚠️ Symptoms

Seat not moving, lumbar support not adjusting, recline function not working, or a combination of these issues.

🔍 Common Causes

Faulty seat switch, damaged or corroded wiring, loose connections, or a malfunctioning BCM.

Doctor's Orders

🛠️ How to Fix B0084

1. Disconnect the battery to reset the BCM. 2. Inspect and clean the seat switch and wiring. 3. Replace the seat switch if damaged or faulty. 4. Check and repair any damaged or corroded wiring. 5. Update the BCM software if necessary.

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