Engine-CodesSaturn – B370B Saturn

B370B Saturn Code - Rear Wiper Function Control Circuit Short to Ground

Quick Answer

The B370B Saturn diagnostic trouble code indicates a problem with the Rear Wiper Function Control Circuit being shorted to ground. Common causes include Damaged wiring in the rear wiper control circuit, Faulty rear wiper motor, Malfunctioning rear wiper control module. 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
B370B Saturn indicates Rear Wiper Function Control Circuit Short to Ground.
Common causes
Common causes include Damaged wiring in the rear wiper control circuit, Faulty rear wiper motor, Malfunctioning rear wiper control module.
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.
Table of contents Created and updated by William Orellana on Sep 11, 2024
💬 Need more help? Ask Auto Expert for instant answers — it's free!
AutoCodes App

Fix Your Car Smarter

Try the New AutoCodes App!

Get complete OBDII diagnostics, repair solutions, and cost estimates, plus AI chat support on demand.

AutoCodes App on Google Play

Code B370B Saturn Description

The B370B Saturn diagnostic trouble code indicates a problem with the Rear Wiper Function Control Circuit being shorted to ground. The rear wiper function is controlled by an electric motor that moves the wiper arm across the rear window to improve visibility in poor weather conditions. When this circuit is shorted to ground, it means that there is an unintended connection between the control circuit and the vehicle's metal body or chassis, causing an electrical malfunction.

OBDII Code B370B Saturn - Rear Wiper Function Control Circuit Short to Ground
B370B Saturn Code - Rear Wiper Function Control Circuit Short to Ground

Common Causes of B370B Saturn

  1. Damaged wiring in the rear wiper control circuit.
  2. Faulty rear wiper motor.
  3. Malfunctioning rear wiper control module.
  4. Corrosion in the electrical connections.
  5. Short circuit due to water intrusion or physical damage.

Symptoms of B370B Saturn

  1. Rear wiper not functioning at all.
  2. Rear wiper stuck in one position.
  3. Rear wiper moving erratically.
  4. Rear wiper continuing to operate even when turned off.

How to Fix B370B Saturn

  1. Begin by performing a visual inspection of the rear wiper control circuit, looking for any visible signs of damage or corrosion.
  2. Use a multimeter to test the continuity of the wiring in the rear wiper circuit to identify any shorts to ground.
  3. Check the rear wiper motor for proper operation and replace it if necessary.
  4. Inspect the rear wiper control module for any signs of damage or malfunction and replace it if needed.
  5. Repair any damaged wiring, clean corroded connections, and ensure proper insulation to prevent future shorts to ground.

Cost to Fix B370B Saturn

The cost of repairing a Rear Wiper Function Control Circuit Short to Ground issue can vary depending on the specific cause of the problem and the labor rates at the auto repair shop. In general, the parts required for this repair, such as a new rear wiper motor or control module, can range from $50 to $200. Labor costs typically range from $100 to $300, depending on the complexity of the repair and the shop's hourly rates.

Need more information about the B370B Saturn code?

Need more information on how to fix the B370B Saturn code? Get Access to Factory Service Manuals

Need Help with the Code?

Get the B370B Saturn code diagnosed by a professional: Find a repair shop in your area

About the author: William Orellana is a Master Mechanic and Mechanical Engineer with over 30 years of experience diagnosing and repairing vehicles. Learn more about his background.

Frequently Asked Questions about B370B Saturn Code

1. What are the common symptoms of OBDII code B370B Saturn (Rear Wiper Function Control Circuit Short to Ground)?

- Common symptoms include the rear wiper not working, the rear wiper working intermittently, or the rear wiper not turning off.

2. What are the possible causes of OBDII code B370B Saturn?

- Possible causes include a short to ground in the rear wiper circuit, a faulty rear wiper motor, damaged wiring, or a defective wiper control module.

3. How can I diagnose the cause of OBDII code B370B Saturn?

- You can use a multimeter to test for continuity in the rear wiper wiring, inspect the rear wiper motor for damage or corrosion, and check the wiper control module for any signs of malfunction.

4. Can I still drive my Saturn with OBDII code B370B?

- It is generally safe to drive your Saturn with this code, but it is recommended to address the issue promptly to ensure the proper functioning of the rear wiper.

5. How can I repair OBDII code B370B Saturn?

- Repair options include repairing or replacing damaged wiring, replacing the rear wiper motor if faulty, and potentially replacing the wiper control module if necessary.

6. Is it possible to reset OBDII code B370B Saturn without fixing the issue?

- Resetting the code without addressing the underlying issue may temporarily remove the warning light, but the problem will persist and likely trigger the code again.

7. Can extreme weather conditions cause OBDII code B370B Saturn to appear?

- Yes, extreme weather conditions like heavy rain or snow can potentially exacerbate issues with the rear wiper function control circuit, leading to the code being triggered.

8. How do I prevent OBDII code B370B Saturn from recurring in the future?

- Regularly inspecting and maintaining the rear wiper system, ensuring proper wiring connections, and addressing any issues promptly can help prevent the code from reappearing.

9. Are there any common mistakes to avoid when diagnosing OBDII code B370B Saturn?

- Avoid overlooking simple causes like loose wiring connections, neglecting to check the rear wiper motor for functionality, and assuming the issue is solely electronic without a thorough inspection.

10. Can a DIY enthusiast repair OBDII code B370B Saturn, or is professional assistance recommended?

- Depending on your skill level and access to tools, DIY repair of this code is possible for some individuals. However, professional assistance may be recommended for complex diagnoses or repairs.

Discuss the causes and fixes for B370B Saturn OBDII Code

Code B370B Saturn comments

No comments found for this page.