AutoCodes – Generic – B1985

B1985 Code - Seat Switch Lumbar Deflate Circuit Failure

Quick Answer

The Body Control Module (BCM) monitors the Seat Switch Lumbar Deflate. Common causes include Faulty Seat Switch Lumbar Deflate, Seat Switch Lumbar Deflate harness is open or shorted, Seat Switch Lumbar Deflate 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: B1985 indicates Seat Switch Lumbar Deflate Circuit Failure.
Common causes: Common causes include Faulty Seat Switch Lumbar Deflate, Seat Switch Lumbar Deflate harness is open or shorted, Seat Switch Lumbar Deflate 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 3,750

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 Aug 02, 2019

Description
Possible Causes
How To Fix
Cost to Diagnose
FAQs
Comments
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Code B1985 Description

The Body Control Module (BCM) monitors the Seat Switch Lumbar Deflate. The BCM sets the OBDII code when the Seat Switch Lumbar Deflate is not to factory specifications.

OBDII Code B1985 - Seat Switch Lumbar Deflate Circuit Failure - AutoCodes.com — B1985 Code - Seat Switch Lumbar Deflate Circuit Failure

What does this mean?

What are the Possible Causes of the DTC B1985?

Faulty Seat Switch Lumbar Deflate
Seat Switch Lumbar Deflate harness is open or shorted
Seat Switch Lumbar Deflate circuit poor electrical connection
Faulty Body Control Module (BCM)

How to Fix the DTC B1985?

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 B1985 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 B1985 code?

Need more information on how to fix the B1985 code? Get Access to Factory Service Manuals

Need Help with the Code?

Get the B1985 code diagnosed by a professional: Find a repair shop in your area

Information for Specific Makes

B1985 Chrysler — Power Liftgate Latch Control 2 Circuit High
B1985 Dodge — Power Liftgate Latch Control 2 Circuit High
B1985 Jeep — Power Liftgate Latch Control 2 Circuit High
B1985 RAM — Power Liftgate Latch Control 2 Circuit High

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 B1985 Code

1. What are common symptoms of OBDII code B1985 Seat Switch Lumbar Deflate Circuit Failure?

The common symptoms include the inability to adjust the lumbar support in the seat, a lumbar support that is stuck in one position, or a warning light on the dashboard.

2. What are the possible causes of OBDII code B1985 Seat Switch Lumbar Deflate Circuit Failure?

Possible causes include damaged wiring or connectors in the seat switch lumbar deflate circuit, a faulty seat switch, or a malfunctioning lumbar support motor.

3. How can I diagnose OBDII code B1985 Seat Switch Lumbar Deflate Circuit Failure?

You can diagnose this code by inspecting the wiring and connectors in the seat switch lumbar deflate circuit, testing the seat switch and lumbar support motor for proper function, and using a scan tool to read and clear the code.

4. What are some tips for repairing OBDII code B1985 Seat Switch Lumbar Deflate Circuit Failure?

Start by checking the wiring and connectors for any damage or corrosion, replace any faulty components such as the seat switch or lumbar support motor, and clear the code using a scan tool after making the repairs.

5. Can I drive my vehicle with OBDII code B1985 Seat Switch Lumbar Deflate Circuit Failure?

It is generally safe to drive your vehicle with this code, but it is recommended to address the issue promptly to ensure the proper functioning of the lumbar support system.

6. How do I reset OBDII code B1985 Seat Switch Lumbar Deflate Circuit Failure?

You can reset the code by using a scan tool to clear the stored fault code in the vehicle's onboard computer after repairing the underlying issue.

7. Is OBDII code B1985 Seat Switch Lumbar Deflate Circuit Failure a common problem in vehicles?

This code is not as common as some other OBDII codes, but it can occur in vehicles with power-operated seats equipped with lumbar support features.

8. Can a DIY enthusiast repair OBDII code B1985 Seat Switch Lumbar Deflate Circuit Failure?

Depending on your skill level and access to tools, a DIY enthusiast may be able to repair this code by following diagnostic procedures and replacing any faulty components in the seat switch lumbar deflate circuit.

9. Are there any recalls related to OBDII code B1985 Seat Switch Lumbar Deflate Circuit Failure?

Recalls specific to this OBDII code may vary by vehicle make and model, so it is recommended to check with the manufacturer or a dealership to inquire about any related recalls.

10. How much does it cost to repair OBDII code B1985 Seat Switch Lumbar Deflate Circuit Failure at a mechanic?

The cost of repairing this code at a mechanic can vary depending on the specific cause of the issue, but it may involve diagnostic fees, labor costs, and the price of any replacement parts needed.