AutoCodes – RAM – B1985 RAM

B1985 RAM Code - Power Liftgate Latch Control 2 Circuit High

Quick Answer

The Power Liftgate Module monitors the Power Liftgate Latch. Common causes include High Battery Voltage, Faulty Liftgate Latch Cinch, Liftgate Latch Cinch harness is open or shorted. 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 RAM indicates Power Liftgate Latch Control 2 Circuit High.
Common causes: Common causes include High Battery Voltage, Faulty Liftgate Latch Cinch, Liftgate Latch Cinch harness is open or shorted.
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 650

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 03, 2019

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

The Power Liftgate Module monitors the Power Liftgate Latch. The Power Liftgate Module sets the OBDII codes when the liftgate latch motor cinch or release output is pulled high prior to or during a latch cinch or release operation, this code will set.

OBDII Code B1985 RAM - Power Liftgate Latch Control 2 Circuit High - AutoCodes.com — B1985 RAM Code - Power Liftgate Latch Control 2 Circuit High

What does this mean?

What are the Possible Causes of the DTC B1985 RAM?

High Battery Voltage
Faulty Liftgate Latch Cinch
Liftgate Latch Cinch harness is open or shorted
Liftgate Latch Cinch circuit poor electrical connection
Faulty Power Liftgate Latch
Faulty Power Liftgate Module

How to Fix the DTC B1985 RAM?

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 RAM 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 RAM code?

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

Need Help with the Code?

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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 RAM Code

1. What does the OBDII code B1985 mean in a RAM vehicle?

The B1985 code indicates a "Power Liftgate Latch Control 2 Circuit High," meaning there is an electrical issue in the liftgate latch control circuit.

2. What are the common symptoms of the B1985 code?

Symptoms include the liftgate not opening or closing properly, a warning light on the dashboard, or unresponsive liftgate latch controls.

3. What causes the B1985 code to appear?

Common causes include a damaged liftgate latch motor, corroded or loose wiring, a faulty control module, or a short circuit in the latch control system.

4. Can I drive my RAM vehicle with the B1985 code?

Yes, but the power liftgate may not function properly, which could be inconvenient if you need to access the cargo area frequently.

5. How can I diagnose the B1985 code in my RAM?

Start by visually inspecting the wiring and connectors for damage or corrosion, then test the liftgate latch motor and related circuits for proper voltage and continuity.

6. How do I fix the B1985 code?

Repairs may involve replacing damaged wiring, cleaning corroded connectors, repairing or replacing the latch motor, or reprogramming the control module if necessary.

7. How much does it cost to repair the B1985 code on a RAM vehicle?

Repair costs vary but can range from $100 to $500, depending on whether the issue is with wiring, the latch motor, or the control module.

8. Can a dead battery cause the B1985 code?

A dead or weak battery can sometimes contribute to electrical issues, but it is not a common cause for this specific code.

9. Is the B1985 code specific to RAM vehicles?

No, the B1985 code can appear in other vehicles with similar power liftgate systems, but the troubleshooting and repair steps may differ.

10. Do I need a professional mechanic to fix the B1985 code?

If you're comfortable with basic electrical diagnostics and repairs, you might handle it yourself. However, a professional mechanic is recommended for more complex issues.