B164B Dodge Code - Driver Mirror Signal Lamp Control Circuit Low
Quick Answer
The B164B diagnostic trouble code (DTC) for Dodge vehicles refers to the "Driver Mirror Signal Lamp Control Circuit Low." This code indicates that there is a low voltage condition detected in the control circuit for the driver-side mirror signal lamp. Common causes include Faulty driver-side mirror signal lamp, Damaged wiring or connectors in the control circuit, Corrosion or poor connections in the control circuit. 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 Dodge indicates Driver Mirror Signal Lamp Control Circuit Low.
- Common causes
- Common causes include Faulty driver-side mirror signal lamp, Damaged wiring or connectors in the control circuit, Corrosion or poor connections in the control circuit.
- 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 B164B Dodge Description
The B164B diagnostic trouble code (DTC) for Dodge vehicles refers to the "Driver Mirror Signal Lamp Control Circuit Low." This code indicates that there is a low voltage condition detected in the control circuit for the driver-side mirror signal lamp. The mirror signal lamp is an important safety feature that alerts other drivers of your intentions to change lanes or make a turn. When this circuit is not functioning properly, it can compromise the visibility of your vehicle to other drivers, increasing the risk of accidents.
Common Causes of B164B Dodge
- Faulty driver-side mirror signal lamp.
- Damaged wiring or connectors in the control circuit.
- Corrosion or poor connections in the control circuit.
- Defective mirror signal lamp control module.
- Issues with the vehicle's body control module (BCM) affecting the mirror signal lamp circuit.
Symptoms of B164B Dodge
- Illumination of the Check Engine Light (CEL) or Malfunction Indicator Lamp (MIL) on the dashboard.
- Inoperative or dim driver-side mirror signal lamp.
- Intermittent flashing of the mirror signal lamp.
- Loss of communication with the mirror signal lamp.
How to Fix B164B Dodge
- Begin by visually inspecting the driver-side mirror signal lamp for any physical damage or signs of malfunction.
- Check the wiring and connectors in the control circuit for any damage, corrosion, or poor connections. Repair or replace as needed.
- Test the mirror signal lamp control module for proper operation and replace if faulty.
- If the issue persists, diagnose the vehicle's body control module (BCM) for any faults related to the mirror signal lamp circuit.
- Clear the DTC and test the mirror signal lamp to ensure proper operation.
Cost to Fix B164B Dodge
The typical repair costs for addressing the B164B code may vary depending on the specific cause of the issue. In general, replacing a faulty mirror signal lamp or repairing damaged wiring/connectors may cost between $50 to $200. If the mirror signal lamp control module needs replacement, the cost can range from $100 to $300. Labor costs at auto repair shops can vary between $80 and $150 per hour, so the total repair bill may be in the range of $150 to $500. It's advisable to consult with a qualified mechanic to get an accurate estimate based on your vehicle's make and model, as well as the extent of the repairs needed.
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Frequently Asked Questions about B164B Dodge Code
1. What does the OBDII code B164B on a Dodge mean?
The B164B code indicates a low voltage issue in the driver mirror signal lamp control circuit.
2. What are the common symptoms of the B164B code on a Dodge vehicle?
Symptoms include the driver-side mirror turn signal not working, dim or flickering signal light, or no response when the turn signal is activated.
3. What causes the B164B Driver Mirror Signal Lamp Control Circuit Low code?
Common causes include a faulty signal lamp, damaged wiring or connectors, a malfunctioning control module, or corrosion in the circuit.
4. Can I still drive my Dodge with the B164B code active?
Yes, the vehicle is drivable, but the turn signal in the driver-side mirror may not function properly, which could reduce visibility and safety.
5. How do I diagnose the B164B code on my Dodge?
Start by inspecting the wiring and connectors for damage or corrosion, then test the mirror signal lamp and control circuit for continuity and proper voltage.
6. What tools do I need to fix the B164B code?
You may need a multimeter, a scan tool, and basic hand tools to diagnose and repair the issue.
7. Is a faulty driver-side mirror signal lamp a common cause of the B164B code?
Yes, a malfunctioning or burned-out signal lamp is a frequent cause and should be checked first.
8. How much does it cost to repair the B164B code?
The cost depends on the root cause. Replacing a signal lamp may cost $50-$150, while repairing wiring or replacing a control module could be more expensive.
9. Can I fix the B164B code myself?
If you are comfortable with basic electrical diagnostics and repairs, you may be able to fix it yourself by replacing the lamp or repairing damaged wiring.
10. Do I need to clear the code after repairing the B164B issue?
Yes, after completing repairs, use a scan tool to clear the code and ensure the issue is resolved.
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