B1B52 RAM Code - 1st Row Driver Seat Belt Sensor Circuit Open
Quick Answer
When powered, the Occupant Restraint Controller (ORC) sends a test current across the Driver Seat Belt Buckle Switch circuits every 100 ms to verify the integrity of the switch and wiring. Common causes include Faulty Driver Seat Belt Buckle Switch, Driver Seat Belt Buckle Switch harness is open or shorted, Driver Seat Belt Buckle Switch 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
- B1B52 RAM indicates 1st Row Driver Seat Belt Sensor Circuit Open.
- Common causes
- Common causes include Faulty Driver Seat Belt Buckle Switch, Driver Seat Belt Buckle Switch harness is open or shorted, Driver Seat Belt Buckle Switch 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 B1B52 RAM Description
What are the Possible Causes of the DTC B1B52 RAM?
- Faulty Driver Seat Belt Buckle Switch
- Driver Seat Belt Buckle Switch harness is open or shorted
- Driver Seat Belt Buckle Switch circuit poor electrical connection
- Faulty Occupant Restraint Controller (ORC)
How to Fix the DTC B1B52 RAM?
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 B1B52 RAM 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.
Need more information about the B1B52 RAM code?
Need more information on how to fix the B1B52 RAM code? Get Access to Factory Service Manuals
Need Help with the Code?
Get the B1B52 RAM code diagnosed by a professional: Find a repair shop in your area
Precautions for SRS “AIR BAG” and “SEAT BELT PRE-TENSIONER” Service
- Never probe the electrical connectors on air bag, side air curtain modules or seat belts.
- Never disassemble or tamper with safety belt buckle/retractor pretensioners, adaptive load limiting retractors, safety belt inflators, or probe the electrical connectors.
- Do not use electrical test equipment to check SRS circuits unless instructed to in this Service Manual.
- Before servicing the SRS, turn ignition switch OFF, disconnect both battery cables and wait at least 3 minutes. For approximately 3 minutes after the cables are removed, it is still possible for the air bag and seat belt pre-tensioner to deploy. Therefore, do not work on any SRS connectors or wires until at least 3 minutes have passed.
Failure to follow this instruction may result in the accidental deployment of these modules, which increases the risk of serious personal injury or death.
Frequently Asked Questions about B1B52 RAM Code
1. What does the OBDII code B1B52 mean?
B1B52 indicates an open circuit in the 1st Row Driver Seat Belt Sensor Circuit, meaning the sensor is not properly communicating with the vehicle’s control module.
2. What are the common symptoms of the B1B52 code?
Common symptoms include the seat belt warning light staying on, an audible chime, and potential malfunction of safety features like the airbag system.
3. What causes the B1B52 code to appear?
The code can be caused by a damaged seat belt buckle sensor, a faulty wiring connection, a broken harness, or corrosion at the sensor or connector.
4. Can I still drive my vehicle with the B1B52 code?
Yes, you can drive, but it’s not recommended as safety systems like airbags may not function properly in the event of an accident.
5. How do I diagnose the B1B52 code?
Start by visually inspecting the seat belt sensor, wiring, and connectors for damage or corrosion. Use a multimeter to check for continuity in the circuit and scan for related codes.
6. How can I fix the B1B52 code?
Repairs may include replacing the driver seat belt buckle sensor, repairing or replacing damaged wiring or connectors, and clearing the code with an OBDII scanner.
7. Is the B1B52 code a serious issue?
Yes, it’s serious because it can affect the proper operation of safety systems like airbags, which depend on accurate seat belt sensor data.
8. How much does it cost to repair the B1B52 code?
The repair cost varies but typically ranges from $100 to $300, depending on whether you need a replacement sensor or wiring repairs.
9. Can a weak battery cause the B1B52 code?
A weak or failing battery is unlikely to directly cause this code but could lead to intermittent electrical issues that might affect the sensor.
10. Do I need to reprogram my vehicle after fixing the B1B52 code?
In most cases, no reprogramming is required. However, you’ll need to clear the code with an OBDII scanner after completing the repair.
Discuss the causes and fixes for B1B52 RAM OBDII Code
Code B1B52 RAM comments
No comments found for this page.
Fix Your Car Smarter
Try the New AutoCodes App!
Get complete OBDII diagnostics, repair solutions, and cost estimates, plus AI chat support on demand.
