B1D37 Code - Passenger Mirror Heater Control Circuit Low
Quick Answer
If the Passenger Memory Mirror Module senses an excessive current draw on the Passenger Mirror Heater Driver circuit within 10 ms of turning on the Mirror Heater Driver Output. 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
- B1D37 indicates Passenger Mirror Heater Control Circuit Low.
- 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 B1D37 Description
What are the Possible Causes of the DTC B1D37?
- 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 B1D37?
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 B1D37 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
- B1D37 Chrysler — Passenger Mirror Heater Control Circuit Low
- B1D37 Dodge — Passenger Mirror Heater Control Circuit Low
- B1D37 Jeep — Passenger Mirror Heater Control Circuit Low
- B1D37 RAM — Passenger Mirror Heater Control Circuit Low
Frequently Asked Questions about B1D37 Code
1. What are common symptoms of OBDII code B1D37 (Passenger Mirror Heater Control Circuit Low)?
Common symptoms include inoperative passenger mirror heater, illuminated dashboard warning light, and loss of mirror defrost function.
2. What causes the OBDII code B1D37 to trigger?
The code B1D37 is typically triggered by a malfunction in the passenger mirror heater control circuit, often due to a damaged or shorted wiring harness, faulty mirror heater element, or a defective mirror control module.
3. How can I diagnose the cause of OBDII code B1D37?
To diagnose the cause of B1D37, start by visually inspecting the wiring harness and connectors for any visible damage. Use a multimeter to test for continuity and resistance in the heater circuit. Additionally, check the mirror heater element for proper functionality.
4. Can I still drive my vehicle with OBDII code B1D37 active?
While it is generally safe to drive with this code, it is important to address the underlying issue promptly to ensure the proper functioning of the mirror heater and related systems.
5. How can I repair OBDII code B1D37 (Passenger Mirror Heater Control Circuit Low)?
Repair options may include repairing or replacing damaged wiring, fixing a faulty mirror heater element, or replacing the mirror control module. Ensure all repairs are done accurately to prevent further issues.
6. Is it possible to reset OBDII code B1D37 without fixing the underlying problem?
Resetting the code without addressing the root cause will only temporarily clear the error code. The issue will likely resurface until the underlying problem is resolved.
7. How much does it typically cost to repair OBDII code B1D37?
The cost of repairing B1D37 can vary depending on the extent of the issue and the specific components that need to be replaced. It is advisable to consult a professional mechanic for an accurate diagnosis and cost estimate.
8. Are there any preventive measures to avoid OBDII code B1D37 from occurring?
Regularly inspecting the mirror heater system for any signs of damage or wear can help prevent the occurrence of B1D37. Keeping the system well-maintained can also extend its lifespan and reduce the likelihood of issues.
9. Can extreme weather conditions contribute to triggering OBDII code B1D37?
Yes, extreme cold weather conditions can sometimes exacerbate issues with mirror heaters, potentially leading to the triggering of code B1D37. It is essential to address any malfunctions promptly, especially in harsh weather environments.
10. Is OBDII code B1D37 a common issue in specific vehicle models?
While the code B1D37 may occur in various vehicle models with mirror heater systems, its frequency can vary. Consult your vehicle's manual or a professional mechanic to determine if this is a common issue in your specific make and model.
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