B1D39 Code - Passenger Mirror Heater Control Circuit Open
Quick Answer
This code is set 10 seconds after the Passenger Memory Mirror Module detects an open in the Passenger Mirror Heater Control Circuit. Common causes include Faulty Passenger Mirror Heater, Passenger Mirror Heater harness is open or shorted, Passenger Mirror Heater 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
- B1D39 indicates Passenger Mirror Heater Control Circuit Open.
- Common causes
- Common causes include Faulty Passenger Mirror Heater, Passenger Mirror Heater harness is open or shorted, Passenger Mirror Heater 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 B1D39 Description
What are the Possible Causes of the DTC B1D39?
- Faulty Passenger Mirror Heater
- Passenger Mirror Heater harness is open or shorted
- Passenger Mirror Heater circuit poor electrical connection
- Faulty Passenger Memory Mirror Module
How to Fix the DTC B1D39?
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 B1D39 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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Information for Specific Makes
- B1D39 Chrysler — Passenger Mirror Heater Control Circuit Open
- B1D39 Dodge — Passenger Mirror Heater Control Circuit Open
- B1D39 Jeep — Passenger Mirror Heater Control Circuit Open
- B1D39 RAM — Passenger Mirror Heater Control Circuit Open
Frequently Asked Questions about B1D39 Code
1. What does OBDII code B1D39 mean?
B1D39 indicates an issue with the passenger mirror heater control circuit, specifically an open circuit that disrupts the mirror heater's operation.
2. What are the symptoms of code B1D39?
Common symptoms include the passenger-side mirror heater not working, reduced defrosting capability, or no visible heating effect on the mirror.
3. What causes the B1D39 code?
Potential causes include a damaged or disconnected wiring harness, a faulty mirror heater, a bad control module, or corroded electrical connections.
4. Can I still drive my car with a B1D39 code?
Yes, you can still drive the car, but the passenger mirror heater will not function, which could impact visibility in cold or wet conditions.
5. How can I diagnose the B1D39 code?
Inspect the wiring and connectors for damage, test the mirror heater for continuity, and check the control circuit for proper voltage.
6. How do I fix the B1D39 code?
Repairs may involve reconnecting or replacing damaged wires, replacing the passenger-side mirror heater, or addressing issues with the control module.
7. How much does it cost to fix the B1D39 code?
Repair costs vary but typically range from $100 to $300, depending on whether the mirror heater or wiring needs replacement.
8. Can I fix the B1D39 code myself?
If you are comfortable with electrical diagnostics and repairs, you can attempt to fix it. Otherwise, it’s best to consult a professional mechanic.
9. What tools are needed to diagnose B1D39?
You’ll need a multimeter to test for continuity and voltage, and an OBDII scanner to confirm the code and clear it after repairs.
10. Does the B1D39 code affect other systems in the car?
No, this code typically affects only the passenger mirror heater and does not impact other vehicle systems.
Discuss the causes and fixes for B1D39 OBDII Code
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