AutoCodes – Generic – B2078

B2078 Code - Right Power Sliding Door Remote Control Switch 2 Signal Error

Quick Answer

The Power Sliding Door Control Unit receives inputs from the switches and sensors in the sliding door system and from B-CAN. Common causes include Faulty Right Power Sliding Door Remote Control Switch 2, Right Power Sliding Door Remote Control Switch 2 harness is open or shorted, Right Power Sliding Door Remote Control Switch 2 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: B2078 indicates Right Power Sliding Door Remote Control Switch 2 Signal Error.
Common causes: Common causes include Faulty Right Power Sliding Door Remote Control Switch 2, Right Power Sliding Door Remote Control Switch 2 harness is open or shorted, Right Power Sliding Door Remote Control Switch 2 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 994

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 16, 2019

Description
Possible Causes
How To Fix
Cost to Diagnose
FAQs
Comments
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Code B2078 Description

The Power Sliding Door Control Unit receives inputs from the switches and sensors in the sliding door system and from B-CAN. It outputs to the slide motor, release actuator, and closer motor to control the movement of the doors. It also controls the sliding door beeper and indicator. The OBDII code sets when the Right Power Sliding Door Control Unit detects a Right Power Sliding Door Remote Control Switch 2 Signal Error.

OBDII Code B2078 - Right Power Sliding Door Remote Control Switch 2 Signal Error - AutoCodes.com — B2078 Code - Right Power Sliding Door Remote Control Switch 2 Signal Error

What does this mean?

What are the Possible Causes of the DTC B2078?

Faulty Right Power Sliding Door Remote Control Switch 2
Right Power Sliding Door Remote Control Switch 2 harness is open or shorted
Right Power Sliding Door Remote Control Switch 2 circuit poor electrical connection
Faulty Right Power Sliding Door Control Unit

How to Fix the DTC B2078?

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 B2078 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 B2078 code?

Need more information on how to fix the B2078 code? Get Access to Factory Service Manuals

Need Help with the Code?

Get the B2078 code diagnosed by a professional: Find a repair shop in your area

Information for Specific Makes

B2078 Acura — Right Power Sliding Door Remote Control Switch 2 Signal Error
B2078 Honda — Right Power Sliding Door Remote Control Switch 2 Signal Error

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 B2078 Code

1. What does the OBDII code B2078 mean?

The B2078 code indicates a signal error with the Right Power Sliding Door Remote Control Switch 2, suggesting a communication or electrical fault.

2. What are the common symptoms of B2078?

Symptoms include the right power sliding door not responding to remote commands, intermittent operation, or the door being stuck in an open or closed position.

3. What causes the B2078 code to appear?

Common causes include a faulty remote control switch, damaged wiring or connectors, or an issue with the door control module.

4. Can a weak battery cause the B2078 code?

Yes, a weak or failing vehicle battery may cause electrical signal issues, potentially triggering this code.

5. How is the B2078 code diagnosed?

Diagnosis involves checking the switch for proper function, inspecting wiring and connectors for damage, and testing the door control module for faults.

6. Can I continue driving with a B2078 code?

Yes, the vehicle is drivable, but the right power sliding door may not function properly, which could be inconvenient or pose a safety risk.

7. How do I fix the B2078 code?

Repairs may include replacing the right power sliding door remote control switch, repairing damaged wiring or connectors, or reprogramming or replacing the door control module.

8. Is the B2078 code covered under warranty?

This depends on your vehicle's warranty coverage and terms. Check with your dealer to confirm.

9. Can I clear the B2078 code without fixing the issue?

Clearing the code with a scanner may temporarily turn off the check engine light, but the issue will likely return until the root cause is fixed.

10. How much does it cost to fix a B2078 code?

Repair costs vary but may range from $50 to $500 depending on whether the issue involves a simple wiring repair or the replacement of components like the remote control switch or module.