B1D12 Code - Passenger Mirror Position Sensor Power Supply Circuit Low
Quick Answer
When the Passenger Door Module (PDM) senses voltage below 4.3 volts on the Passenger Mirror Position Sensor Supply Circuit for over 30 ms., this Diagnostic Trouble Code (DTC) will set. Common causes include Faulty Passenger Mirror, Passenger Mirror harness is open or shorted, Passenger Mirror 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
- B1D12 indicates Passenger Mirror Position Sensor Power Supply Circuit Low.
- Common causes
- Common causes include Faulty Passenger Mirror, Passenger Mirror harness is open or shorted, Passenger Mirror 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 B1D12 Description
What are the Possible Causes of the DTC B1D12?
- Faulty Passenger Mirror
- Passenger Mirror harness is open or shorted
- Passenger Mirror circuit poor electrical connection
- Faulty Passenger Door Module (PDM)
How to Fix the DTC B1D12?
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 B1D12 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
- B1D12 Chrysler — Passenger Mirror Position Sensor Power Supply Circuit Low
- B1D12 Dodge — Passenger Mirror Position Sensor Power Supply Circuit Low
- B1D12 Jeep — Passenger Mirror Position Sensor Power Supply Circuit Low
- B1D12 RAM — Passenger Mirror Position Sensor Power Supply Circuit Low
Frequently Asked Questions about B1D12 Code
1. What does the OBDII code B1D12 mean?
The code B1D12 indicates a problem with the passenger mirror position sensor's power supply circuit, specifically a low voltage condition.
2. What are the common symptoms of code B1D12?
Symptoms include the passenger side mirror not adjusting properly, mirror memory functions not working, or no response from the mirror control.
3. What causes the B1D12 code to appear?
Causes can include a faulty mirror position sensor, damaged wiring or connectors, a blown fuse, or a malfunctioning mirror control module.
4. How can I diagnose code B1D12?
Diagnose by inspecting the wiring and connectors for damage or corrosion, testing the power supply to the mirror position sensor, and checking the fuse and control module.
5. Can I drive with the B1D12 code active?
Yes, you can drive with this code active, but the passenger mirror may not function properly, which could reduce visibility and safety.
6. How do I fix the B1D12 code?
Repairs may involve replacing the mirror position sensor, repairing damaged wiring or connectors, or replacing a faulty control module.
7. How much does it cost to repair code B1D12?
The cost can vary, but replacing a mirror position sensor typically ranges from $100 to $300, depending on the vehicle and labor rates.
8. Can I reset the B1D12 code without repairing it?
You can clear the code with an OBDII scanner, but it will likely return if the underlying issue is not resolved.
9. Will a blown fuse cause the B1D12 code?
Yes, a blown fuse in the mirror circuit can cause the power supply to drop and trigger this code.
10. Is the B1D12 code specific to certain vehicles?
While this code can appear on many vehicles, it is more commonly associated with models that have advanced mirror adjustment and memory features.
Discuss the causes and fixes for B1D12 OBDII Code
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