📖 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.
Possible Solutions
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.
Recommended Parts & Tools
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📦 Parts Needed
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Frequently Asked Questions about B0084
How serious is B0084?
This code has a medium severity level. This should be diagnosed and repaired soon to prevent further issues.
Can I drive with B0084?
You can typically drive short distances, but have it diagnosed as soon as possible.
How much does it cost to fix B0084?
Repair costs vary depending on the root cause, but typically range from $100-300 including parts and labor.
Related Diagnostic Codes
Other codes that may appear with B0084
Airbag System Malfunction (B0000)
Body System Code B0001: Climate Control Malfunction
Body System Code B0002: Door Locks Malfunction
Body System Code B0003: Windows
Seat Position Sensor Malfunction
Body System Code B0005: Lighting Malfunction
💡 Why These Codes Are Related:
- • Similar Issues: Same root cause or component failure
- • Related Problems: Often occur together due to system interactions
- • Sequential Codes: Progressive failure stages or multiple sensors
- • Same System: Components within the same automotive system