B370C Buick Code - Rain Sensor Intensity Signal Circuit
Quick Answer
Ignition voltage is supplied to the windshield outside moisture sensor from the Body Control Module (BCM). Common causes include Faulty Windshield Outside Moisture Sensor (Rain Sensor), Windshield Outside Moisture Sensor harness is open or shorted, Windshield Outside Moisture Sensor 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
- B370C Buick indicates Rain Sensor Intensity Signal Circuit.
- Common causes
- Common causes include Faulty Windshield Outside Moisture Sensor (Rain Sensor), Windshield Outside Moisture Sensor harness is open or shorted, Windshield Outside Moisture Sensor 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 B370C Buick Description
The windshield outside moisture sensor uses the moisture sensor signal 2 circuit to command wiper motor wipe cycles and to confirm the moisture sensor signal 1 is being received. If at anytime communication between the windshield outside moisture sensor and BCM is lost, the BCM will use the inputs from the windshield wiper/washer switch in the delay positions to operate the wiper motor at continuous variable delay intervals.
The Diagnostic Trouble Code (DTC) sets if an open, short to ground or a short to voltage has been detected on moisture sensor signal 2 circuit.
What are the Possible Causes of the DTC B370C Buick?
- Faulty Windshield Outside Moisture Sensor (Rain Sensor)
- Windshield Outside Moisture Sensor harness is open or shorted
- Windshield Outside Moisture Sensor circuit poor electrical connection
- Faulty Body Control Module (BCM)
How to Fix the DTC B370C Buick?
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 B370C Buick 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 B370C Buick code?
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Frequently Asked Questions about B370C Buick Code
1. What are the common symptoms of OBDII code B370C in a Buick related to the rain sensor intensity signal circuit?
The common symptoms include erratic behavior of the rain-sensing wipers, wipers not working in response to rain intensity, or the wipers operating at an incorrect speed.
2. What typically causes the OBDII code B370C in a Buick?
The code B370C is usually triggered by a malfunction in the rain sensor module, a faulty wiring connection, or a problem with the rain sensor itself.
3. How can I diagnose the rain sensor intensity signal circuit issue in my Buick?
Diagnosing the issue involves inspecting the rain sensor module, checking the wiring connections for any damage or corrosion, and testing the rain sensor's functionality using a diagnostic tool.
4. Are there any simple DIY repair tips for fixing the rain sensor intensity signal circuit problem in a Buick?
DIY repair tips include checking and cleaning the wiring connections, ensuring the rain sensor is properly aligned and free of debris, and resetting the rain sensor system according to the manufacturer's instructions.
5. Can extreme weather conditions affect the rain sensor intensity signal circuit in a Buick?
Yes, extreme weather conditions such as heavy rain, snow, or extreme temperatures can impact the performance of the rain sensor intensity signal circuit in a Buick.
6. Is it safe to continue driving with the OBDII code B370C triggered in a Buick?
While the vehicle may still be operable with this code, it is recommended to address the issue promptly to ensure the proper functioning of the rain sensor system for optimal visibility during inclement weather.
7. How much does it typically cost to repair the rain sensor intensity signal circuit issue in a Buick?
The cost of repairs can vary depending on the exact cause of the issue, but it may range from a simple DIY fix with minimal costs to a more complex repair involving the replacement of the rain sensor module.
8. Can I reset the OBDII code B370C in my Buick myself?
Yes, you can attempt to reset the code using an OBDII scanner or by disconnecting the car's battery for a few minutes. However, it is important to address the underlying issue causing the code to prevent it from reoccurring.
9. Will fixing the rain sensor intensity signal circuit issue improve the overall performance of the rain sensor system in my Buick?
Yes, repairing the rain sensor intensity signal circuit problem will help restore the proper functioning of the rain sensor system, ensuring accurate detection of rain intensity and optimal operation of the wipers.
10. Is it necessary to visit a dealership or auto repair shop to address the OBDII code B370C in a Buick?
While it is recommended to seek professional help for accurate diagnosis and repair, some minor issues related to the rain sensor intensity signal circuit can be resolved by following DIY repair guides and troubleshooting steps.
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