B164B Dodge 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 Dodge 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.
Code B164B Dodge Description
What are the Possible Causes of the DTC B164B Dodge?
- 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 Dodge?
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 Dodge 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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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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