B1D39 Dodge Code - Passenger Mirror Heater Control Circuit Open
Quick Answer
The B1D39 diagnostic trouble code for Dodge vehicles indicates a problem with the passenger mirror heater control circuit being open. Common causes include Faulty mirror heater switch, Damaged or corroded wiring in the mirror heater circuit, Malfunctioning mirror heater 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
- B1D39 Dodge indicates Passenger Mirror Heater Control Circuit Open.
- Common causes
- Common causes include Faulty mirror heater switch, Damaged or corroded wiring in the mirror heater circuit, Malfunctioning mirror heater 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.
Fix Your Car Smarter
Try the New AutoCodes App!
Get complete OBDII diagnostics, repair solutions, and cost estimates, plus AI chat support on demand.
Code B1D39 Dodge Description
The B1D39 diagnostic trouble code for Dodge vehicles indicates a problem with the passenger mirror heater control circuit being open. This means that there is an interruption in the electrical circuit that controls the heating function of the passenger side mirror. The mirror heater is designed to defrost or de-ice the mirror, improving visibility in cold or icy conditions. When this circuit is open, the mirror heater will not function properly, potentially leading to reduced visibility and safety hazards.
Common Causes of B1D39 Dodge
- Faulty mirror heater switch.
- Damaged or corroded wiring in the mirror heater circuit.
- Malfunctioning mirror heater control module.
- Defective heating element in the mirror glass.
Symptoms of B1D39 Dodge
- Passenger side mirror does not defrost or de-ice in cold weather.
- Indicator light on mirror heater switch does not illuminate.
- Passenger mirror remains foggy or frosted even after the vehicle has been running for a while.
- Mirror heater may intermittently work or not work at all.
How to Fix B1D39 Dodge
- Begin by visually inspecting the wiring harness and connections for any visible damage or corrosion. Repair or replace any damaged wires.
- Test the mirror heater switch for continuity using a multimeter. Replace the switch if it is faulty.
- Check the mirror heater control module for proper operation. If necessary, replace the control module.
- If all other components are in working order, the issue may lie with the heating element in the mirror glass. In this case, the mirror assembly may need to be replaced.
Cost to Fix B1D39 Dodge
The cost of repairing a B1D39 code for a Dodge vehicle can vary depending on the specific cause of the issue and the labor rates in your area. Typically, the parts required for this repair, such as a new mirror heater switch or control module, can range from $50 to $200. Labor costs at auto repair shops can vary between $80 and $150 per hour. Therefore, the total repair cost for this issue could range from $150 to $500 or more, depending on the extent of the repair needed. It's recommended to contact local auto repair shops for accurate estimates based on your vehicle's make and model.
Need more information about the B1D39 Dodge code?
Need more information on how to fix the B1D39 Dodge code? Get Access to Factory Service Manuals
Need Help with the Code?
Get the B1D39 Dodge code diagnosed by a professional: Find a repair shop in your area
Frequently Asked Questions about B1D39 Dodge Code
1. What does the OBDII code B1D39 mean on a Dodge?
The B1D39 code indicates an open circuit in the passenger mirror heater control circuit, which affects the functionality of the heated mirror.
2. What are the symptoms of the B1D39 code?
Common symptoms include the passenger-side heated mirror not warming up and potentially an illuminated check engine or warning light.
3. What causes the B1D39 code to appear?
The code can be triggered by a damaged or disconnected wiring harness, a failed mirror heating element, or a faulty mirror control module.
4. How do I diagnose the B1D39 code?
Start by visually inspecting the wiring and connectors to the passenger mirror heater for damage or disconnection. Use a multimeter to check for continuity in the circuit.
5. Can I drive with the B1D39 code active?
Yes, you can drive with this code, but the passenger-side heated mirror will not function, which may affect visibility during cold or frosty conditions.
6. How do you fix the B1D39 code on a Dodge?
Repairs may include reconnecting or repairing damaged wiring, replacing the heated mirror assembly, or replacing the mirror control module if it’s faulty.
7. How much does it cost to repair the B1D39 code?
Costs vary depending on the exact repair but typically range from $100 to $300, including parts and labor.
8. Can a blown fuse cause the B1D39 code?
Yes, a blown fuse in the mirror heater circuit can cause the code. Check and replace the fuse if necessary.
9. Is the B1D39 code specific to Dodge vehicles?
While the code itself is used in various OBDII systems, the specific designation for the passenger mirror heater circuit is most commonly associated with Dodge vehicles.
10. Does clearing the B1D39 code fix the issue?
Clearing the code may temporarily reset the system, but the underlying issue must be repaired to prevent the code from returning.
Discuss the causes and fixes for B1D39 Dodge OBDII Code
Code B1D39 Dodge comments
No comments found for this page.
Fix Your Car Smarter
Try the New AutoCodes App!
Get complete OBDII diagnostics, repair solutions, and cost estimates, plus AI chat support on demand.