Engine-CodesRAM – B164F RAM

B164F RAM Code - Passenger Mirror Signal Lamp Control Circuit Low

Quick Answer

The B164F diagnostic trouble code (DTC) refers to an issue with the passenger mirror signal lamp control circuit being detected as low. Common causes include Faulty wiring in the control circuit, Malfunctioning signal lamp assembly, Defective control module. 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
B164F RAM indicates Passenger Mirror Signal Lamp Control Circuit Low.
Common causes
Common causes include Faulty wiring in the control circuit, Malfunctioning signal lamp assembly, Defective control module.
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 11, 2024
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Code B164F RAM Description

The B164F diagnostic trouble code (DTC) refers to an issue with the passenger mirror signal lamp control circuit being detected as low. In simpler terms, this code indicates that there is a problem with the control circuit that operates the signal lamp in the passenger side mirror of the vehicle. This can affect the functionality of the signal lamp, which is a crucial component for indicating the driver's intention to turn or change lanes to other road users.

OBDII Code B164F RAM - Passenger Mirror Signal Lamp Control Circuit Low
B164F RAM Code - Passenger Mirror Signal Lamp Control Circuit Low

Common Causes of B164F RAM

  1. Faulty wiring in the control circuit
  2. Malfunctioning signal lamp assembly
  3. Defective control module
  4. Poor connection in the circuit
  5. Water damage or corrosion in the wiring

Symptoms of B164F RAM

  1. Passenger side mirror signal lamp not working
  2. Dim or flickering light in the signal lamp
  3. Dashboard indicator for signal lamp malfunction
  4. Signal lamp flashing at irregular intervals

How to Fix B164F RAM

  1. Begin by inspecting the wiring in the control circuit for any visible damage or loose connections.
  2. Test the signal lamp assembly to check for any faults or malfunctions.
  3. Check the control module for any signs of damage or malfunction and replace if necessary.
  4. Repair any poor connections in the circuit by soldering or replacing damaged connectors.
  5. Clear the DTC from the vehicle's onboard computer using a diagnostic tool to reset the system and test the functionality of the signal lamp.

Cost to Fix B164F RAM

The typical repair costs for addressing a B164F diagnostic code can vary depending on the specific cause of the issue. On average, the parts required for this repair, such as wiring, signal lamp assembly, or control module, can range from $50 to $200. Labor costs at auto repair shops can be between $100 and $300, depending on the shop's hourly rates and the level of expertise required for the repair. Overall, the total cost for resolving this issue could be around $150 to $500. It is advisable to consult with a professional mechanic for an accurate estimate based on the vehicle's make and model, as well as the extent of the repair needed.

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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 B164F RAM Code

1. What does OBDII code B164F mean in a RAM vehicle?

Code B164F indicates a problem with the Passenger Mirror Signal Lamp Control Circuit, specifically that the circuit voltage is lower than expected.

2. What are the common symptoms of code B164F in a RAM?

Symptoms include the passenger-side mirror signal lamp not functioning, dim or flickering light, or a warning light on the dashboard.

3. What causes the B164F code to trigger?

The most common causes are a faulty signal lamp, damaged wiring or connectors in the circuit, or an issue with the control module.

4. Can a blown fuse cause the B164F code?

Yes, a blown fuse in the circuit controlling the passenger mirror signal lamp can result in this code.

5. How do I diagnose code B164F on my RAM vehicle?

Start by inspecting the passenger mirror signal lamp, checking for damaged wires, loose connectors, or a blown fuse. Use a multimeter to test circuit voltage and continuity.

6. Is it safe to drive with a B164F code?

Yes, it is generally safe to drive, but the malfunctioning signal lamp can reduce visibility and communication with other drivers, especially when making turns.

7. How do I fix the B164F code?

Repairs may involve replacing the faulty signal lamp, repairing damaged wiring or connectors, or addressing issues with the control module.

8. Can a software update fix the B164F code?

In rare cases, a software glitch in the control module may cause the issue, and a software update from the dealership could resolve it.

9. What tools do I need to troubleshoot code B164F?

You’ll need an OBDII scanner, a multimeter, and basic tools for accessing the wiring and connectors around the passenger mirror.

10. What should I check if replacing the signal lamp doesn’t fix code B164F?

If replacing the lamp doesn’t resolve the issue, inspect the wiring harness, connectors, and control module for faults, and test the circuit for proper voltage.

Discuss the causes and fixes for B164F RAM OBDII Code

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