Engine-CodesRAM – B164B RAM

B164B RAM Code - Driver Mirror Signal Lamp Control Circuit Low

Quick Answer

The B164B diagnostic trouble code (DTC) refers to the driver mirror signal lamp control circuit being detected as low. Common causes include Faulty driver mirror signal lamp, Wiring or connector issues in the driver mirror signal lamp circuit, Defective body control module (BCM). 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 driver mirror signal lamp, Wiring or connector issues in the driver mirror signal lamp circuit, Defective body control module (BCM).
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.
Table of contents Created and updated by William Orellana on Sep 19, 2024
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Code B164B RAM Description

The B164B diagnostic trouble code (DTC) refers to the driver mirror signal lamp control circuit being detected as low. This means that there is a problem with the circuit that controls the signal lamp on the driver's side mirror. The signal lamp is an important safety feature that alerts other drivers of your intentions to turn or change lanes. When this circuit is not functioning properly, it can impact the visibility and safety of the vehicle.

OBDII Code B164B RAM - Driver Mirror Signal Lamp Control Circuit Low
B164B RAM Code - Driver Mirror Signal Lamp Control Circuit Low

Common Causes of B164B RAM

  1. Faulty driver mirror signal lamp.
  2. Wiring or connector issues in the driver mirror signal lamp circuit.
  3. Defective body control module (BCM).
  4. Corrosion or damage to the circuit components.
  5. Electrical short in the circuit.

Symptoms of B164B RAM

  1. Driver side mirror signal lamp not illuminating.
  2. Intermittent functioning of the driver side mirror signal lamp.
  3. Constant illumination of the driver side mirror signal lamp.
  4. Dashboard warning light indicating an issue with the driver mirror signal lamp.

How to Fix B164B RAM

  1. Begin by visually inspecting the driver mirror signal lamp for any visible damage or defects.
  2. Check the wiring and connectors in the circuit for any signs of corrosion, damage, or loose connections.
  3. Test the driver mirror signal lamp with a multimeter to ensure it is functioning properly.
  4. If the lamp and wiring are in good condition, the issue may lie with the body control module. Have the BCM tested and replaced if necessary.
  5. Clear the DTC using a diagnostic scanner after completing the repair to reset the system and ensure the issue has been resolved.

Cost to Fix B164B RAM

The typical repair costs for addressing the B164B DTC can vary depending on the specific cause of the issue. In general, replacing a driver mirror signal lamp can cost between $50 and $100, while repairing wiring or connectors may range from $100 to $200. If the body control module needs to be replaced, the cost can be higher, potentially ranging from $200 to $500 or more. Labor costs can add to the total repair bill, with rates typically ranging between $80 and $150 per hour. It is recommended to consult with a professional mechanic to get an accurate estimate based on the specific circumstances of the vehicle.

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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.

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