B392B Chevrolet Code - Seat Lumbar/Bolster Pump
Quick Answer
When a seat lumbar, bolster, or massage function is commanded ON, the Seat Bolster Memory Control Module applies battery voltage and a low side drive Pulse Width Modulated (PWM) signal through their respective control circuits to the seat lumbar/bolster pump. Common causes include Faulty Seat Lumbar/Bolster Pump, Seat Lumbar/Bolster Pump harness is open or shorted, Seat Lumbar/Bolster Pump circuit poor electrical connection. Severity is High - diagnose this code as soon as possible. Driving is not recommended if the warning light is flashing, the engine runs poorly, or safety-related symptoms are present.
- What it means
- B392B Chevrolet indicates Seat Lumbar/Bolster Pump.
- Common causes
- Common causes include Faulty Seat Lumbar/Bolster Pump, Seat Lumbar/Bolster Pump harness is open or shorted, Seat Lumbar/Bolster Pump circuit poor electrical connection.
- Severity
- High - diagnose this code as soon as possible.
- Can I drive?
- Driving is not recommended if the warning light is flashing, the engine runs poorly, or safety-related symptoms are present.
Code B392B Chevrolet Description
What are the Possible Causes of the DTC B392B Chevrolet?
- Faulty Seat Lumbar/Bolster Pump
- Seat Lumbar/Bolster Pump harness is open or shorted
- Seat Lumbar/Bolster Pump circuit poor electrical connection
- Faulty Seat Bolster Memory Control Module
How to Fix the DTC B392B Chevrolet?
Review the 'Possible Causes' above and visually examine the corresponding wiring harness and connectors. Check for damaged components and inspect connector pins for signs of being broken, bent, pushed out, or corroded.
What is the Cost to Diagnose the Code?
Labor: 1.0
To diagnose the B392B Chevrolet code, it typically requires 1.0 hour of labor. Rates vary by location, vehicle, and shop. Many shops charge between $80–$150 per hour; dealerships and metro areas may be higher, independents may be lower.
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Frequently Asked Questions about B392B Chevrolet Code
1. What are common symptoms of OBDII code B392B in a Chevrolet related to the Seat Lumbar/Bolster Pump?
- Common symptoms include loss of lumbar support or bolstering in the seat, unusual noises coming from the pump, or complete failure of the pump to operate.
2. What are possible causes of OBDII code B392B related to the Seat Lumbar/Bolster Pump in a Chevrolet?
- Potential causes may include a faulty lumbar/bolster pump motor, damaged wiring or connectors, low power supply to the pump, or a malfunctioning control module.
3. How can I diagnose the issue causing OBDII code B392B in a Chevrolet related to the Seat Lumbar/Bolster Pump?
- To diagnose the problem, you can start by checking the wiring and connectors for any visible damage, testing the power supply to the pump, and scanning the control module for fault codes.
4. What are some DIY repair tips for addressing OBDII code B392B in a Chevrolet related to the Seat Lumbar/Bolster Pump?
- DIY repair tips include checking and replacing blown fuses, inspecting and repairing damaged wiring, testing the pump motor for functionality, and resetting the control module after repairs.
5. Can I drive my Chevrolet with OBDII code B392B related to the Seat Lumbar/Bolster Pump without causing further damage?
- It is generally safe to drive the vehicle with this code, but it is recommended to address the issue promptly to avoid discomfort while driving and prevent potential worsening of the problem.
6. How much does it typically cost to repair OBDII code B392B in a Chevrolet related to the Seat Lumbar/Bolster Pump?
- Repair costs can vary depending on the specific cause of the issue, but they may range from $100 to $400 for parts and labor, with pump motor replacements being on the higher end.
7. Can resetting the OBDII code B392B related to the Seat Lumbar/Bolster Pump in a Chevrolet fix the issue temporarily?
- Resetting the code may temporarily clear the warning light, but if the underlying problem with the lumbar/bolster pump system is not addressed, the code is likely to reappear.
8. Are there any recalls or service bulletins related to OBDII code B392B in a Chevrolet regarding the Seat Lumbar/Bolster Pump?
- It is recommended to check with Chevrolet dealerships or online resources for any recalls or service bulletins specific to this OBDII code and the lumbar/bolster pump system.
9. Is it possible to disable the lumbar/bolster pump system to prevent OBDII code B392B from recurring in a Chevrolet?
- Disabling the system is not recommended as it may impact the comfort and support provided by the seat. It is best to properly diagnose and repair the issue causing the code.
10. How long does it typically take to repair OBDII code B392B in a Chevrolet related to the Seat Lumbar/Bolster Pump?
- The repair time can vary depending on the complexity of the issue and the availability of parts, but it may take anywhere from 1 to 3 hours for a professional mechanic to diagnose and fix the problem.
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