B2000 Code - Short To Positive In Seat Belt Motor Right Circuit
Quick Answer
The Seat Belt Control ECU receives information from the master cylinder solenoid (Skid Control ECU) via the Controlled Are Network (CAN) communication line and tightens the seat belt by operating the motor in the Front Seat Outer Belt Assembly Right (RH) or Left (LH). Common causes include Faulty Front Seat Outer Belt Assembly Right (RH), Front Seat Outer Belt Assembly Right (RH) harness is open or shorted, Front Seat Outer Belt Assembly Right (RH) 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
- B2000 indicates Short To Positive In Seat Belt Motor Right Circuit.
- Common causes
- Common causes include Faulty Front Seat Outer Belt Assembly Right (RH), Front Seat Outer Belt Assembly Right (RH) harness is open or shorted, Front Seat Outer Belt Assembly Right (RH) 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 B2000 Description
What are the Possible Causes of the DTC B2000?
- Faulty Front Seat Outer Belt Assembly Right (RH)
- Front Seat Outer Belt Assembly Right (RH) harness is open or shorted
- Front Seat Outer Belt Assembly Right (RH) circuit poor electrical connection
- Faulty Seat Belt Control ECU
How to Fix the DTC B2000?
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 B2000 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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Information for Specific Makes
- B2000 Acura — Power Sliding Door Control Unit Communication Bus Line Error
- B2000 Honda — Power Sliding Door Control Unit Communication Bus Line Error
- B2000 Lexus — Short To Positive In Seat Belt Motor Right Circuit
- B2000 Scion — Short To Positive In Seat Belt Motor Right Circuit
- B2000 Toyota — Short To Positive In Seat Belt Motor Right Circuit
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 B2000 Code
1. What are the common symptoms of OBDII code B2000 "Short To Positive In Seat Belt Motor Right Circuit"?
- Common symptoms include a non-functional or erratic movement of the right seat belt motor, illuminated airbag warning light, and potential loss of power to the seat belt mechanism.
2. What are the possible causes of OBDII code B2000?
- The code B2000 can be triggered by a short circuit in the wiring harness or connectors associated with the right seat belt motor, damaged wiring, or a faulty seat belt motor itself.
3. How can I diagnose the issue related to OBDII code B2000?
- Diagnosing the issue involves inspecting the wiring and connectors for any visible damage, testing the seat belt motor for proper function, and using a multimeter to check for continuity and shorts in the circuit.
4. Can I repair the B2000 code issue myself?
- If you have experience with automotive electrical systems and the necessary tools, you may attempt to repair the issue yourself by identifying and rectifying the short circuit or replacing the faulty components.
5. Is it safe to drive with OBDII code B2000 active?
- It is not recommended to drive with the B2000 code active as it may affect the proper functioning of the seat belt system and compromise passenger safety in the event of a collision.
6. How much does it typically cost to repair OBDII code B2000 at a repair shop?
- The cost of repairing OBDII code B2000 can vary depending on the underlying cause of the issue, but it may range from $100 to $300 for parts and labor at a repair shop.
7. Can resetting the OBDII system clear the B2000 code?
- Resetting the OBDII system may temporarily clear the B2000 code, but if the underlying issue such as a short circuit remains unresolved, the code is likely to reappear.
8. Are there any preventive measures to avoid triggering OBDII code B2000?
- Regularly inspecting the seat belt system for any signs of wear or damage, avoiding pulling or tugging on the seat belt excessively, and ensuring proper installation of aftermarket accessories can help prevent issues leading to the B2000 code.
9. Is the OBDII code B2000 specific to a certain vehicle make or model?
- The OBDII code B2000 "Short To Positive In Seat Belt Motor Right Circuit" can be encountered in various vehicle makes and models equipped with OBDII systems and seat belt motor components.
10. Can a faulty seat belt motor cause other issues besides triggering the B2000 code?
- A faulty seat belt motor can potentially lead to other safety concerns such as improper restraint during a collision, increased risk of injury, and failure to meet safety inspection requirements.
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