B2071 Scion Code - Stop Light Control Relay Malfunction
Quick Answer
This Diagnostic Trouble Code (DTC) is stored when the master cylinder solenoid (Skid Control ECU) detects that the brake light relay is malfunctioning and transmits this to the seat belt control ECU via CAN communication. Common causes include Faulty Vehicle Stability Control System, Faulty Seat Belt Control ECU. 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
- B2071 Scion indicates Stop Light Control Relay Malfunction.
- Common causes
- Common causes include Faulty Vehicle Stability Control System, Faulty Seat Belt Control ECU.
- 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 B2071 Scion Description
What are the Possible Causes of the DTC B2071 Scion?
- Faulty Vehicle Stability Control System
- Faulty Seat Belt Control ECU
How to Fix the DTC B2071 Scion?
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 B2071 Scion 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 B2071 Scion Code
1. What are the common symptoms of OBDII code B2071 in a Scion related to Stop Light Control Relay Malfunction?
- Common symptoms include non-functioning brake lights, cruise control not engaging, and potential issues with the vehicle's transmission shifting.
2. What could be causing the Stop Light Control Relay Malfunction in a Scion triggering code B2071?
- Possible causes include a faulty stop light control relay, wiring issues, a malfunctioning brake light switch, or a problem with the vehicle's ECM.
3. How can I diagnose the Stop Light Control Relay Malfunction causing OBDII code B2071 in my Scion?
- You can start by checking the stop light control relay for proper functioning, inspecting the wiring for any damage, testing the brake light switch, and scanning the vehicle's ECM for related fault codes.
4. Can I continue driving my Scion with the OBDII code B2071 related to a Stop Light Control Relay Malfunction?
- It is not recommended to drive your Scion with this issue as non-functioning brake lights can pose a safety hazard on the road.
5. Will resetting the OBDII code B2071 resolve the Stop Light Control Relay Malfunction in my Scion?
- Resetting the code may temporarily clear the warning light, but it will not fix the underlying issue causing the Stop Light Control Relay Malfunction.
6. How much does it cost to repair the Stop Light Control Relay Malfunction triggering OBDII code B2071 in a Scion?
- The cost of repair can vary depending on the exact cause of the issue, but it may range from $100 to $300 for parts and labor.
7. Can I replace the stop light control relay in my Scion myself to fix the OBDII code B2071?
- If you have experience working on automotive electrical systems, you may be able to replace the relay yourself. Otherwise, it's best to consult a professional mechanic.
8. Are there any preventive measures to avoid encountering OBDII code B2071 related to Stop Light Control Relay Malfunction in my Scion?
- Regularly checking and maintaining your vehicle's brake lights, wiring, and stop light control relay can help prevent issues that may trigger this code.
9. Will OBDII code B2071 affecting the Stop Light Control Relay Malfunction cause any damage to other vehicle components?
- While the code itself may not directly damage other components, it's essential to address the underlying issue promptly to prevent any potential safety hazards or further malfunctions.
10. How long does it typically take to repair the Stop Light Control Relay Malfunction causing OBDII code B2071 in a Scion?
- The repair time can vary based on the specific cause of the issue and the availability of parts, but it usually takes around 1-2 hours for a professional mechanic to diagnose and fix the problem.
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