AutoCodes – Generic – B2115

B2115 Code - Rear Washer Input Short To Ground

Quick Answer

The Body Control Module (BCM) monitors the Rear Washer Motor. Common causes include Faulty Rear Washer Motor, Rear Washer Motor harness is open or shorted, Rear Washer Motor 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: B2115 indicates Rear Washer Input Short To Ground.
Common causes: Common causes include Faulty Rear Washer Motor, Rear Washer Motor harness is open or shorted, Rear Washer Motor 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.

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Code Popularity 4,381

How popular is this code, among other codes? Low

Repair Importance Level

Urgent (Diagnose now) (3 / 3)

Repair Difficulty Level

Advanced (Pro) (3 / 3)

What is this?

Table of contents Created and updated by William Orellana on Sep 17, 2019

Description
Possible Causes
How To Fix
Cost to Diagnose
FAQs
Comments
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Code B2115 Description

The Body Control Module (BCM) monitors the Rear Washer Motor. The BCM sets the OBDII code when the Rear Washer Motor is not to factory specifications.

OBDII Code B2115 - Rear Washer Input Short To Ground - AutoCodes.com — B2115 Code - Rear Washer Input Short To Ground

What does this mean?

What are the Possible Causes of the DTC B2115?

Faulty Rear Washer Motor
Rear Washer Motor harness is open or shorted
Rear Washer Motor circuit poor electrical connection
Faulty Body Control Module (BCM)

How to Fix the DTC B2115?

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 B2115 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 B2115 code?

Need more information on how to fix the B2115 code? Get Access to Factory Service Manuals

Need Help with the Code?

Get the B2115 code diagnosed by a professional: Find a repair shop in your area

Information for Specific Makes

B2115 Buick — Power Seat Position Sensor Voltage
B2115 Cadillac — Power Seat Position Sensor Voltage
B2115 Chevrolet — Power Seat Position Sensor Voltage
B2115 GMC — Power Seat Position Sensor Voltage

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 B2115 Code

1. What are common symptoms of OBDII code B2115 (Rear Washer Input Short To Ground)?

- Common symptoms include the rear washer not functioning, intermittent operation, or the washer fluid pump running continuously.

2. What are the possible causes of OBDII code B2115?

- The code B2115 can be caused by a short circuit in the rear washer system, faulty wiring, a defective washer fluid pump, or a malfunctioning rear washer switch.

3. How can I diagnose the source of the rear washer input short to ground issue?

- To diagnose the issue, you can start by checking the wiring and connections related to the rear washer system, inspecting the washer fluid pump for any signs of damage, and testing the rear washer switch for proper functionality.

4. Can I still use the front washer while OBDII code B2115 is present?

- Yes, you should still be able to use the front washer without any issues even if the rear washer input is shorted to ground.

5. Is it safe to continue driving with OBDII code B2115 active?

- It is generally safe to continue driving with this code, but it is recommended to address the issue promptly to ensure the proper functioning of the rear washer system.

6. How can I repair OBDII code B2115 (Rear Washer Input Short To Ground) myself?

- Repairing this code may involve repairing the wiring, replacing the washer fluid pump, or fixing the rear washer switch. If you are not experienced with automotive electrical systems, it is advisable to seek professional help.

7. Will resetting the OBDII code B2115 clear the issue permanently?

- Resetting the code may temporarily clear the issue, but if the underlying cause is not addressed, the code is likely to return.

8. Can extreme weather conditions cause OBDII code B2115 to trigger?

- Yes, extreme weather conditions can sometimes lead to electrical issues, including shorts in the rear washer system, which may trigger code B2115.

9. How can I prevent OBDII code B2115 from occurring again in the future?

- Regularly inspecting the washer system components, ensuring proper wiring connections, and using quality washer fluid can help prevent the recurrence of code B2115.

10. Is OBDII code B2115 specific to certain vehicle makes or models?

- OBDII code B2115 (Rear Washer Input Short To Ground) can appear in various vehicle makes and models equipped with an onboard diagnostics system compatible with this code.