B2006 Lexus Code - Short To Ground In Seat Belt Motor Left 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 Left (LH), Front Seat Outer Belt Assembly Left (LH) harness is open or shorted, Front Seat Outer Belt Assembly Left (LH) 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
- B2006 Lexus indicates Short To Ground In Seat Belt Motor Left Circuit.
- Common causes
- Common causes include Faulty Front Seat Outer Belt Assembly Left (LH), Front Seat Outer Belt Assembly Left (LH) harness is open or shorted, Front Seat Outer Belt Assembly Left (LH) 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 B2006 Lexus Description
What are the Possible Causes of the DTC B2006 Lexus?
- Faulty Front Seat Outer Belt Assembly Left (LH)
- Front Seat Outer Belt Assembly Left (LH) harness is open or shorted
- Front Seat Outer Belt Assembly Left (LH) circuit poor electrical connection
- Faulty Seat Belt Control ECU
How to Fix the DTC B2006 Lexus?
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 B2006 Lexus 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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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 B2006 Lexus Code
1. What are common symptoms of OBDII code B2006 in a Lexus related to a short to ground in the seat belt motor left circuit?
- Common symptoms include the seat belt not retracting properly, the seat belt warning light illuminating on the dashboard, and potential issues with the seat belt motor's functionality.
2. What are possible causes of OBDII code B2006 indicating a short to ground in the seat belt motor left circuit in a Lexus?
- Possible causes include damaged or frayed wiring in the seat belt motor left circuit, a faulty seat belt motor, or a short circuit in the electrical system.
3. How can I diagnose the source of the short to ground in the seat belt motor left circuit triggering OBDII code B2006 in my Lexus?
- To diagnose the issue, you can use a multimeter to test the continuity of the wiring in the seat belt motor left circuit, inspect the seat belt motor for any visible damage, and check for any loose connections or shorts in the electrical system.
4. Can I repair OBDII code B2006 related to a short to ground in the seat belt motor left circuit in my Lexus myself?
- Depending on your level of expertise, you may be able to repair the issue yourself by repairing or replacing damaged wiring, replacing the seat belt motor if necessary, and ensuring all connections are secure.
5. Is it safe to continue driving my Lexus with OBDII code B2006 indicating a short to ground in the seat belt motor left circuit?
- It is not recommended to drive your vehicle with this issue as it can compromise the effectiveness of the seat belt system, which is crucial for occupant safety in the event of a collision.
6. How much does it typically cost to repair OBDII code B2006 related to a short to ground in the seat belt motor left circuit in a Lexus?
- The cost of repair can vary depending on the extent of the damage, but it may involve labor costs for diagnosis and repair, as well as the cost of any necessary replacement parts.
7. Are there any preventive measures I can take to avoid encountering OBDII code B2006 in my Lexus due to a short to ground in the seat belt motor left circuit?
- Regularly inspecting the condition of the seat belt system, avoiding putting excess strain on the seat belt during use, and addressing any issues promptly can help prevent this code from occurring.
8. Can OBDII code B2006 in a Lexus be intermittently triggered by a loose connection in the seat belt motor left circuit?
- Yes, a loose or intermittent connection in the seat belt motor left circuit can sometimes trigger the code, so it is important to thoroughly check all connections during diagnosis and repair.
9. Does OBDII code B2006 indicating a short to ground in the seat belt motor left circuit affect the functionality of other safety systems in a Lexus?
- While the code specifically relates to the seat belt motor left circuit, it is important to ensure that all safety systems in the vehicle are functioning properly to maintain overall safety.
10. Can a faulty seat belt motor cause OBDII code B2006 due to a short to ground in the seat belt motor left circuit in a Lexus?
- Yes, a faulty seat belt motor can potentially cause the code to be triggered, and replacing the motor may be necessary to resolve the issue.
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