AutoCodes – RAM – B185F RAM

B185F RAM Code - Passenger Window Control Circuit Low

Quick Answer

The Passenger Door Module (PDM) monitors the Passenger Window Motor Circuit. Common causes include Faulty Passenger Window Motor, Passenger Window Motor harness is open or shorted, Passenger Window 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: B185F RAM indicates Passenger Window Control Circuit Low.
Common causes: Common causes include Faulty Passenger Window Motor, Passenger Window Motor harness is open or shorted, Passenger Window 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 530

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 Jul 08, 2019

Description
Possible Causes
How To Fix
Cost to Diagnose
FAQs
Comments
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Code B185F RAM Description

The Passenger Door Module (PDM) monitors the Passenger Window Motor Circuit. The Passenger Door Module sets the OBDII code when the Passenger Window Driver Up circuit is grounded during a window up movement command.

OBDII Code B185F RAM - Passenger Window Control Circuit Low - AutoCodes.com — B185F RAM Code - Passenger Window Control Circuit Low

What does this mean?

What are the Possible Causes of the DTC B185F RAM?

Faulty Passenger Window Motor
Passenger Window Motor harness is open or shorted
Passenger Window Motor circuit poor electrical connection
Faulty Passenger Door Module (PDM)

How to Fix the DTC B185F 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 B185F 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.

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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 B185F RAM Code

1. What are the common symptoms of OBDII code B185F RAM "Passenger Window Control Circuit Low"?

- Common symptoms include the passenger window not responding to control inputs, the window moving slowly or erratically, or the window getting stuck in one position.

2. What are the possible causes of OBDII code B185F RAM "Passenger Window Control Circuit Low"?

- Possible causes include damaged wiring or connectors in the passenger window control circuit, a faulty power window switch, or a malfunctioning window motor.

3. How can I diagnose the issue related to OBDII code B185F RAM "Passenger Window Control Circuit Low"?

- You can start by visually inspecting the wiring and connectors for any signs of damage. Using a multimeter, test the continuity of the circuit and check for proper voltage levels at the switch and motor.

4. Can I reset the OBDII code B185F RAM "Passenger Window Control Circuit Low" by disconnecting the battery?

- While disconnecting the battery may clear the code temporarily, it won't fix the underlying issue causing the code. It's recommended to diagnose and repair the problem to prevent the code from reoccurring.

5. Is it safe to drive with OBDII code B185F RAM "Passenger Window Control Circuit Low" active?

- It is generally safe to drive with this code, but you may experience inconvenience due to the passenger window not functioning correctly. It's best to address the issue promptly to avoid potential safety concerns.

6. What are some repair tips for fixing OBDII code B185F RAM "Passenger Window Control Circuit Low"?

- Repair tips may include checking and repairing any damaged wiring, replacing a faulty power window switch or motor, and ensuring proper connections in the control circuit.

7. Do I need special tools to repair OBDII code B185F RAM "Passenger Window Control Circuit Low"?

- While basic tools like a multimeter and wiring tools may be sufficient for diagnosis and repair, specialized tools like window regulator repair kits may be needed depending on the specific cause of the issue.

8. Can extreme weather conditions cause OBDII code B185F RAM "Passenger Window Control Circuit Low" to trigger?

- Extreme weather conditions can potentially exacerbate existing issues with the window control circuit, leading to the code being triggered. It's important to ensure the circuit is properly insulated and protected from environmental factors.

9. How long does it typically take to repair OBDII code B185F RAM "Passenger Window Control Circuit Low"?

- The repair time can vary depending on the specific cause of the issue. Simple fixes like replacing a switch may take a short time, while more complex issues like wiring repairs or motor replacements may require more time.

10. Can I prevent OBDII code B185F RAM "Passenger Window Control Circuit Low" from recurring in the future?

- Regular maintenance of the power window system, including checking for loose connections and ensuring proper insulation of wiring, can help prevent the code from recurring.