B370D Saturn Code - Rain Sensor Mode Control 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
- B370D Saturn indicates Rain Sensor Mode Control 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 B370D Saturn 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 the moisture Sensor Signal 1 circuit.
What are the Possible Causes of the DTC B370D Saturn?
- 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 B370D Saturn?
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 B370D Saturn 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 B370D Saturn Code
1. What are the common symptoms of OBDII code B370D on a Saturn related to Rain Sensor Mode Control Circuit?
- Common symptoms include malfunctioning rain-sensing wipers, unresponsive automatic wiper settings, or erratic wiper behavior.
2. What are the possible causes of the OBDII code B370D on a Saturn?
- The code B370D could be triggered by a faulty rain sensor, a damaged wiring harness, a malfunctioning control module, or a poor electrical connection.
3. How can I diagnose the Rain Sensor Mode Control Circuit issue on my Saturn?
- To diagnose the issue, you can start by inspecting the rain sensor and its wiring for any visible damage. Additionally, a diagnostic scan tool can help identify the specific problem within the circuit.
4. Can I continue driving my Saturn with the B370D code present?
- While the vehicle may remain drivable with this code, it is recommended to address the issue promptly to ensure proper wiper functionality, especially during inclement weather.
5. Are there any DIY repair tips for fixing the Rain Sensor Mode Control Circuit problem on a Saturn?
- DIY enthusiasts can attempt to check and clean the rain sensor lens, inspect and repair any damaged wiring, or reset the rain sensor system following the manufacturer's guidelines.
6. How much does it typically cost to repair the Rain Sensor Mode Control Circuit issue on a Saturn?
- The cost of repair can vary depending on the specific cause of the problem. Simple fixes like cleaning the sensor or repairing wiring may be inexpensive, while replacing components like the sensor or control module can be more costly.
7. Can a Rain Sensor Mode Control Circuit problem affect other vehicle systems on a Saturn?
- While the primary impact of this issue is on the wiper system, it is essential to address it promptly to prevent potential electrical issues or malfunctions in other connected systems.
8. Is it possible to reset the Rain Sensor Mode Control Circuit without professional help?
- Resetting the rain sensor system may be possible by following the instructions in the vehicle's manual. However, if the issue persists after a reset, further diagnosis and repair may be required.
9. Will the B370D code on a Saturn clear on its own after the issue is fixed?
- In most cases, once the underlying problem causing the B370D code is resolved, the code should clear on its own. If not, using a diagnostic scan tool to clear the code manually may be necessary.
10. How important is the Rain Sensor Mode Control Circuit for the overall safety and performance of a Saturn?
- The Rain Sensor Mode Control Circuit plays a crucial role in ensuring proper visibility and safety while driving in adverse weather conditions. Addressing this issue promptly is essential for maintaining optimal wiper functionality and overall driving safety.
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