B1D04 Dodge Code - Mirror Adjust Switch Input Circuit Performance
Quick Answer
When the Driver Door Module (DDM) receives a mirror movement command from the switch but then senses an open or shorted circuit on one of the switch sense circuits for over 100 ms., this code will set. Common causes include Faulty Mirror Adjust Switch, Mirror Adjust Switch harness is open or shorted, Mirror Adjust Switch 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
- B1D04 Dodge indicates Mirror Adjust Switch Input Circuit Performance.
- Common causes
- Common causes include Faulty Mirror Adjust Switch, Mirror Adjust Switch harness is open or shorted, Mirror Adjust Switch 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 B1D04 Dodge Description
What are the Possible Causes of the DTC B1D04 Dodge?
- Faulty Mirror Adjust Switch
- Mirror Adjust Switch harness is open or shorted
- Mirror Adjust Switch circuit poor electrical connection
- Faulty Driver Door Module (DDM)
How to Fix the DTC B1D04 Dodge?
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 B1D04 Dodge 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 B1D04 Dodge Code
1. What does the OBDII code B1D04 mean on a Dodge vehicle?
The B1D04 code indicates an issue with the Mirror Adjust Switch Input Circuit's performance, meaning the signal from the mirror adjust switch is not within the expected range or functioning properly.
2. What are the common symptoms of the B1D04 code?
Symptoms may include the side mirror adjustment not working, erratic mirror movement, or unresponsive mirror controls.
3. What causes the B1D04 code to trigger?
Common causes include a faulty mirror adjust switch, damaged wiring or connectors in the circuit, or a malfunctioning Body Control Module (BCM).
4. Can I still drive my Dodge if the B1D04 code is present?
Yes, you can still drive the vehicle, but you may not be able to adjust the side mirrors, which can impact visibility and safety.
5. How do I diagnose the B1D04 code on a Dodge?
Start by inspecting the mirror adjust switch, checking for damaged or loose wiring, and scanning the system with an OBDII scanner to confirm the fault.
6. How can I fix the B1D04 code?
Repairs may involve replacing the mirror adjust switch, repairing damaged wiring, cleaning corroded connectors, or, in rare cases, reprogramming or replacing the BCM.
7. How much does it cost to fix the B1D04 code?
The cost depends on the issue but typically ranges from $50 to $200 for parts and labor, depending on whether the switch, wiring, or BCM needs attention.
8. Can a blown fuse cause the B1D04 code?
While unlikely, a blown fuse in the mirror adjustment circuit could potentially cause issues and should be checked during diagnosis.
9. Is the B1D04 code a common issue in Dodge vehicles?
It’s not extremely common but can occur, especially in older models or vehicles with frequent use of the mirror adjustment feature.
10. Do I need to reset the B1D04 code after repairs?
Yes, after completing repairs, clear the code with an OBDII scanner and test the system to ensure the issue is resolved.
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