B1D20 Chrysler Code - Mirror Vertical Motor Control Circuit High
Quick Answer
When the Memory Mirror Module senses voltage present on the Mirror Vertical Motor Driver circuit, when there should not be, for over 10ms, this Diagnostic Trouble Code (DTC) will set. Common causes include Faulty Mirror Motor, Mirror Motor harness is open or shorted, Mirror Motor 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
- B1D20 Chrysler indicates Mirror Vertical Motor Control Circuit High.
- Common causes
- Common causes include Faulty Mirror Motor, Mirror Motor harness is open or shorted, Mirror Motor 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 B1D20 Chrysler Description
What are the Possible Causes of the DTC B1D20 Chrysler?
- Faulty Mirror Motor
- Mirror Motor harness is open or shorted
- Mirror Motor circuit poor electrical connection
- Faulty Memory Mirror Module
How to Fix the DTC B1D20 Chrysler?
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 B1D20 Chrysler 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 B1D20 Chrysler Code
1. What does the OBDII code B1D20 mean on a Chrysler vehicle?
The B1D20 code indicates a problem with the Mirror Vertical Motor Control Circuit, specifically that the circuit is reading a high voltage condition.
2. What are the common symptoms of the B1D20 code?
Symptoms may include the side mirror not adjusting vertically, the mirror motor being unresponsive, or intermittent functionality.
3. What causes the B1D20 code to appear?
Common causes include a damaged mirror motor, faulty wiring or connectors in the vertical motor circuit, or a malfunctioning door control module.
4. Can a blown fuse cause the B1D20 code?
Yes, a blown fuse related to the mirror motor circuit can cause this code by disrupting the power supply.
5. How can I diagnose the B1D20 code?
Start by inspecting the mirror wiring and connectors for damage or corrosion, check the fuse, and test the vertical motor for proper operation using a multimeter.
6. Is it safe to drive with the B1D20 code active?
Yes, the code typically doesn’t affect drivability, but it will impair the vertical adjustment of the side mirror, which could impact visibility.
7. Can I fix the B1D20 code myself?
If you’re comfortable working with electrical components, you may be able to repair or replace damaged wiring, connectors, or the mirror motor. Otherwise, seek professional help.
8. How much does it cost to fix the B1D20 code?
Repair costs vary depending on the issue but may range from $50 to $200 for minor wiring repairs or up to $500 if the mirror assembly needs replacement.
9. Will clearing the code fix the issue?
Clearing the code without addressing the underlying problem will not fix the issue, and the code is likely to return.
10. What tools are needed to troubleshoot the B1D20 code?
You’ll need an OBDII scanner, a multimeter to check voltage, and basic tools to access the mirror and its wiring.
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