B1D37 RAM 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 RAM 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 RAM Description
What are the Possible Causes of the DTC B1D37 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 B1D37 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 B1D37 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 B1D37 RAM Code
1. What does the OBDII code B1D37 mean on a RAM vehicle?
The B1D37 code indicates a Passenger Mirror Heater Control Circuit Low, meaning there is an issue with the electrical circuit controlling the passenger-side heated mirror.
2. What are the common symptoms of the B1D37 code?
Symptoms may include the passenger-side heated mirror not warming up, an illuminated check engine light, or reduced functionality of the mirror's defrosting feature.
3. What causes the B1D37 code to appear?
Common causes include a faulty mirror heater element, damaged wiring or connectors, a blown fuse, or a malfunctioning power mirror control module.
4. Can I drive my RAM with the B1D37 code?
Yes, you can drive with this code, but the heated mirror may not function properly, which could reduce visibility in cold or foggy conditions.
5. How do I diagnose the B1D37 code?
Diagnosis involves inspecting the passenger mirror heater circuit for damaged wiring or connectors, checking the fuse, and using a multimeter to test the heater element and control module.
6. What tools do I need to fix the B1D37 code?
You may need a multimeter, a diagnostic scan tool, wire repair tools, and possibly replacement parts like a new mirror heater element or wiring.
7. How much does it cost to repair the B1D37 code?
Repair costs vary but typically range from $50 to $200, depending on whether the issue is with wiring, the heater element, or the control module.
8. Can a blown fuse cause the B1D37 code?
Yes, a blown fuse in the mirror heater circuit can cause the control circuit to register as low and trigger the code.
9. How do I reset the B1D37 code after repairs?
After fixing the issue, use an OBDII scanner to clear the code, or disconnect the vehicle battery for a few minutes to reset the system.
10. Is the B1D37 code related to other mirror functions?
Typically, this code only affects the heated mirror function, but in some cases, issues with the control module may impact other mirror adjustments.
Discuss the causes and fixes for B1D37 RAM OBDII Code
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