B1571 Lexus Code - Manual Switch Green Indicator Malfunction
Quick Answer
This Diagnostic Trouble Code (DTC) is set when the Data Communication Module (DCM) (Telematics Transceiver) detects an open or short in the manual (SOS) switch green indicator circuit of the manual (SOS) switch. Common causes include Faulty Map Light Assembly, Map Light Assembly harness is open or shorted, Map Light Assembly 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
- B1571 Lexus indicates Manual Switch Green Indicator Malfunction.
- Common causes
- Common causes include Faulty Map Light Assembly, Map Light Assembly harness is open or shorted, Map Light Assembly 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 B1571 Lexus Description
What are the Possible Causes of the DTC B1571 Lexus?
- Faulty Map Light Assembly
- Map Light Assembly harness is open or shorted
- Map Light Assembly circuit poor electrical connection
- Faulty Data Communication Module (DCM) (Telematics Transceiver)
How to Fix the DTC B1571 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 B1571 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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Frequently Asked Questions about B1571 Lexus Code
1. What are the common symptoms of OBDII code B1571 in a Lexus related to the Manual Switch Green Indicator Malfunction?
- The common symptoms include the manual switch green indicator not functioning properly or not illuminating as expected.
2. What could be the possible causes of OBDII code B1571 in a Lexus?
- Possible causes may include a faulty manual switch, a wiring issue, a malfunctioning indicator light, or a problem with the control module.
3. How can I diagnose the Manual Switch Green Indicator Malfunction in my Lexus?
- You can start by checking the manual switch and wiring connections for any visible damage or loose connections. Testing the indicator light and control module may also be necessary.
4. Is it safe to continue driving my Lexus with OBDII code B1571 triggered?
- It is generally safe to drive the vehicle with this code, but it is recommended to address the issue promptly to ensure proper functionality of the manual switch indicator.
5. Can I repair OBDII code B1571 in my Lexus by myself, or do I need professional help?
- Depending on your experience with automotive repairs and diagnostics, you may be able to resolve the issue yourself by checking the manual switch and associated components. Professional help may be required for more complex repairs.
6. Are there any reset procedures I can try to clear OBDII code B1571 in my Lexus?
- In some cases, disconnecting the car battery for a few minutes may reset the code. However, it is important to diagnose and fix the underlying issue to prevent the code from reappearing.
7. How much does it typically cost to repair OBDII code B1571 in a Lexus at a repair shop?
- The cost of repair can vary depending on the exact cause of the issue and the labor rates of the repair shop. It is best to consult with a professional for an accurate estimate.
8. Will fixing OBDII code B1571 improve the overall performance of my Lexus?
- Resolving the Manual Switch Green Indicator Malfunction may not directly impact the performance of the vehicle, but it is essential for ensuring the proper functioning of the indicator system.
9. Can extreme weather conditions affect the triggering of OBDII code B1571 in a Lexus?
- While extreme weather conditions may not directly trigger this code, they can potentially worsen existing issues with the manual switch indicator or related components.
10. How often should I check for OBDII code B1571 in my Lexus to ensure the indicator system is functioning correctly?
- It is recommended to regularly inspect the manual switch indicator during routine maintenance checks to catch any issues early and prevent the code from triggering.
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