B370B Code - Rear Wiper Function Control Circuit Short to Ground
Quick Answer
The B370B diagnostic trouble code (DTC) refers to a fault in the rear wiper function control circuit where it is shorted to ground. Common causes include Damaged wiring in the rear wiper 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 indicates Rear Wiper Function Control Circuit Short to Ground.
- Common causes
- Common causes include Damaged wiring in the rear wiper 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.
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Code B370B Description
The B370B diagnostic trouble code (DTC) refers to a fault in the rear wiper function control circuit where it is shorted to ground. This means that there is an unintended connection between the control circuit and the vehicle's ground system, causing abnormal electrical flow. The rear wiper function control circuit is responsible for controlling the operation of the rear wiper, including its speed and timing. When this circuit is shorted to ground, it can lead to issues with the rear wiper's functionality, potentially causing it to malfunction or not work at all.
Common Causes of B370B
- Damaged wiring in the rear wiper circuit
- Faulty rear wiper motor
- Malfunctioning rear wiper control module
- Short circuit in the rear wiper system
- Corrosion in the rear wiper connections
Symptoms of B370B
- Rear wiper not functioning or operating erratically
- Rear wiper not turning off
- Fuse for rear wiper repeatedly blowing
- Electrical burning smell in the vehicle
- Rear wiper moving slowly or intermittently
How to Fix B370B
- Begin by inspecting the wiring and connections in the rear wiper circuit for any visible damage or corrosion.
- Test the rear wiper motor and control module to determine if they are functioning correctly or need replacement.
- Use a multimeter to diagnose the short to ground fault in the circuit and identify the exact location of the issue.
- Repair or replace any damaged wiring, components, or connections causing the short to ground fault.
- Clear the DTC from the vehicle's computer system and test the rear wiper to ensure proper operation.
Cost to Fix B370B
The cost of repairing a rear wiper function control circuit short to ground can vary depending on the extent of the damage and the specific parts that need to be replaced. On average, the repair costs for this issue can range from $150 to $400, including parts and labor. However, it's important to keep in mind that labor rates at auto repair shops can vary widely, so it's recommended to inquire about specific rates in your area for a more accurate estimate. Additionally, the cost may increase if additional components need to be replaced or if the repair requires more extensive diagnostic work.
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Code B370B Information for Specific Makes
- B370B Cadillac — Rear Wiper Function Control Circuit Short to Ground
- B370B Chevrolet — Rear Wiper Function Control Circuit Short to Ground
- B370B Saturn — Rear Wiper Function Control Circuit Short to Ground
Frequently Asked Questions about B370B Code
1. What are the common symptoms of OBDII code B370B (Rear Wiper Function Control Circuit Short to Ground)?
- Common symptoms include the rear wiper not working, erratic wiper movement, or the wiper getting stuck in one position.
2. What are the possible causes of the OBDII code B370B?
- Potential causes include damaged wiring or connectors in the rear wiper circuit, a faulty rear wiper motor, or a defective wiper switch.
3. How can I diagnose the issue related to OBDII code B370B?
- You can use a multimeter to test the continuity of the wiring, check for any visible damage, and inspect the rear wiper motor and switch for proper functioning.
4. What are some repair tips for fixing the Rear Wiper Function Control Circuit Short to Ground issue?
- Repair tips may include repairing or replacing damaged wiring, connectors, the rear wiper motor, or the wiper switch as needed to resolve the short to ground problem.
5. Can OBDII code B370B be safely ignored if the rear wiper is not essential?
- It is not recommended to ignore OBDII codes as they can indicate underlying issues that may affect other vehicle systems or lead to more significant problems in the future.
6. Is it safe to continue driving with the Rear Wiper Function Control Circuit Short to Ground issue?
- It is generally safe to drive with this issue, but it is advisable to address the problem promptly to ensure proper functioning of the rear wiper and prevent any potential electrical hazards.
7. How much does it typically cost to repair OBDII code B370B?
- The cost of repair can vary depending on the specific cause of the issue, but it may involve labor costs for diagnosis and repair, as well as the price of any necessary replacement parts.
8. Can a DIY enthusiast fix the Rear Wiper Function Control Circuit Short to Ground problem?
- Depending on your skill level and access to tools, you may be able to diagnose and repair this issue yourself, but it is recommended to have proper knowledge of automotive electrical systems.
9. Are there any preventive measures to avoid OBDII code B370B in the future?
- To prevent this issue, regular inspection of the rear wiper system, timely maintenance, and addressing any electrical problems promptly can help avoid the Rear Wiper Function Control Circuit Short to Ground code.
10. Will resetting the OBDII system clear the B370B code?
- Resetting the OBDII system may temporarily clear the code, but if the underlying issue causing the Rear Wiper Function Control Circuit Short to Ground is not addressed, the code is likely to return.
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