AutoCodes – RAM – B164B RAM

B164B RAM Code - Driver Mirror Signal Lamp Control Circuit Low

Quick Answer

The Drivers Door Module (DDM) monitors the Driver Mirror Signal Lamp. Common causes include Faulty Drivers Power Mirror Assembly, Drivers Power Mirror Assembly harness is open or shorted, Drivers Power Mirror Assembly 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: B164B RAM indicates Driver Mirror Signal Lamp Control Circuit Low.
Common causes: Common causes include Faulty Drivers Power Mirror Assembly, Drivers Power Mirror Assembly harness is open or shorted, Drivers Power Mirror Assembly 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 602

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 May 28, 2019

Description
Possible Causes
How To Fix
Cost to Diagnose
FAQs
Comments
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Code B164B RAM Description

The Drivers Door Module (DDM) monitors the Driver Mirror Signal Lamp. The Drivers Door Module sets the OBDII code when the Driver Mirror Signal Lamp is not to factory specifications.

OBDII Code B164B RAM - Driver Mirror Signal Lamp Control Circuit Low - AutoCodes.com — B164B RAM Code - Driver Mirror Signal Lamp Control Circuit Low

What does this mean?

What are the Possible Causes of the DTC B164B RAM?

Faulty Drivers Power Mirror Assembly
Drivers Power Mirror Assembly harness is open or shorted
Drivers Power Mirror Assembly circuit poor electrical connection
Faulty Drivers Door Module (DDM)

How to Fix the DTC B164B 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 B164B 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 B164B RAM Code

1. What are common symptoms of OBDII code B164B RAM related to Driver Mirror Signal Lamp Control Circuit Low?

- Common symptoms include a malfunctioning or inoperative driver side mirror signal lamp.

2. What are the possible causes of OBDII code B164B RAM?

- Possible causes may include a faulty driver side mirror signal lamp bulb, a damaged wiring harness, or a defective mirror signal lamp control module.

3. How can I diagnose the issue related to OBDII code B164B RAM?

- To diagnose the issue, check the driver side mirror signal lamp for any visible damage, inspect the wiring harness for any breaks or shorts, and test the mirror signal lamp control module for proper functionality.

4. Can a loose connection cause OBDII code B164B RAM to trigger?

- Yes, a loose or poor connection between the driver side mirror signal lamp and the control module can trigger the B164B RAM code.

5. What are some repair tips for fixing OBDII code B164B RAM?

- Repair tips may include replacing the driver side mirror signal lamp bulb, repairing or replacing any damaged wiring, and recalibrating or replacing the mirror signal lamp control module.

6. Is it safe to drive with OBDII code B164B RAM active?

- While the code itself may not pose an immediate safety risk, it is recommended to address the issue promptly as it can affect visibility and communication with other drivers on the road.

7. Can extreme weather conditions cause OBDII code B164B RAM to appear?

- Extreme weather conditions such as heavy rain or snow can potentially damage the driver side mirror signal lamp or its wiring, leading to the B164B RAM code.

8. How much does it typically cost to repair OBDII code B164B RAM?

- The cost of repair can vary depending on the extent of the issue and the specific components that need to be replaced. It is advisable to consult a professional for an accurate estimate.

9. Are there any preventive measures to avoid OBDII code B164B RAM in the future?

- Regularly inspecting and maintaining the driver side mirror signal lamp, checking the wiring harness for any signs of wear, and ensuring secure connections can help prevent the recurrence of the B164B RAM code.

10. Can OBDII code B164B RAM affect other electrical systems in the vehicle?

- While the code is specific to the driver mirror signal lamp control circuit, underlying issues such as wiring faults can potentially impact other electrical systems in the vehicle.