B1D39 RAM 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 RAM 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 RAM Description
What are the Possible Causes of the DTC B1D39 RAM?
- 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 RAM?
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 RAM 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 B1D39 RAM Code
1. What does the OBDII code B1D39 mean?
The B1D39 code indicates an open circuit issue in the passenger mirror heater control, meaning the system cannot activate the mirror's heating function.
2. What are the symptoms of the B1D39 code?
Symptoms include the passenger-side mirror heater not working, the mirror fogging up during cold or wet conditions, and potentially an illuminated warning light on the dashboard.
3. What causes the B1D39 code to appear?
Common causes include a damaged or disconnected wiring harness, a faulty mirror heater element, or a malfunctioning control module.
4. Can I still drive my car with the B1D39 code?
Yes, the vehicle is still drivable, but the passenger mirror defroster will not work, which may reduce visibility in cold or wet weather.
5. How can I diagnose the B1D39 code?
Start by visually inspecting the wiring and connectors for damage or corrosion. Use a multimeter to check for continuity in the circuit and test the mirror heater element for proper resistance.
6. What repairs can fix the B1D39 code?
Repairs may include replacing damaged wiring, repairing loose connectors, replacing the mirror heater element, or reprogramming or replacing the control module if it's faulty.
7. How much does it cost to fix the B1D39 code?
Repair costs vary depending on the issue. Replacing the mirror heater element typically costs $100–$300, while wiring repairs or module replacements may cost more.
8. Can I fix the B1D39 code myself?
If you are comfortable with electrical diagnostics and repairs, you can check and fix wiring or replace the mirror heater element. Otherwise, consult a professional mechanic.
9. Does clearing the B1D39 code solve the issue?
Clearing the code without addressing the root cause will likely result in the code returning. Proper diagnosis and repair are necessary.
10. Is the B1D39 code related to other mirror functions?
No, the code specifically relates to the mirror heater circuit and does not typically affect functions like mirror adjustment or folding.
Discuss the causes and fixes for B1D39 RAM OBDII Code
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