B1544 Buick Code - Mirror Motors Common Circuit
Quick Answer
The Driver Door Module (DDM) or Passenger Door Module (PDM) controls the mirror horizontal and vertical motors through the use of bi-directional motor controls. Common causes include Faulty Driver/Passenger Rearview Mirror Motor, Driver/Passenger Rearview Mirror Motor harness is open or shorted, Driver/Passenger Rearview 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
- B1544 Buick indicates Mirror Motors Common Circuit.
- Common causes
- Common causes include Faulty Driver/Passenger Rearview Mirror Motor, Driver/Passenger Rearview Mirror Motor harness is open or shorted, Driver/Passenger Rearview 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 B1544 Buick Description
Horizontal controls operate in the same manner with the mirror motor horizontal control circuit supplying voltage or ground and the mirror motor common control circuit supplying voltage or ground to the mirror horizontal motor when the mirror is commanded right and left.
What are the Possible Causes of the DTC B1544 Buick?
- Faulty Driver/Passenger Rearview Mirror Motor
- Driver/Passenger Rearview Mirror Motor harness is open or shorted
- Driver/Passenger Rearview Mirror Motor circuit poor electrical connection
- Faulty Driver Door Module (DDM) or Passenger Door Module (PDM)
How to Fix the DTC B1544 Buick?
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.
Code Tech Notes
B1544 02 Mirror Motors Common Circuit Short to Ground
B1544 04 Mirror Motors Common Circuit Open
What is the Cost to Diagnose the Code?
Labor: 1.0
To diagnose the B1544 Buick 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 B1544 Buick Code
1. What are the common symptoms of OBDII code B1544 for Buick related to Mirror Motors Common Circuit?
The common symptoms include malfunctioning power mirrors, inability to adjust mirror angles, and mirror motors not responding properly.
2. What are the possible causes of OBDII code B1544 in a Buick indicating Mirror Motors Common Circuit issues?
Possible causes include faulty mirror motors, damaged wiring or connectors, blown fuses, or a problem with the mirror control switch.
3. How can I diagnose OBDII code B1544 for Buick Mirror Motors Common Circuit problems?
Diagnose the code by checking the mirror motors for proper operation, inspecting the wiring and connectors for any damage, testing the mirror control switch, and verifying the fuse related to the mirror circuit.
4. What are some repair tips for resolving OBDII code B1544 Buick Mirror Motors Common Circuit issues?
Repair tips include replacing faulty mirror motors, repairing or replacing damaged wiring or connectors, ensuring proper fuse functionality, and recalibrating the mirror control system if necessary.
5. Can OBDII code B1544 Buick Mirror Motors Common Circuit problems be fixed without professional help?
While some basic troubleshooting and repairs can be done by DIY enthusiasts, complex issues may require professional assistance from a certified mechanic or dealership.
6. Are there any safety concerns associated with unresolved OBDII code B1544 Buick Mirror Motors Common Circuit issues?
Yes, unresolved issues with mirror motors can affect visibility while driving, potentially leading to safety hazards on the road. It is important to address these problems promptly.
7. How much does it typically cost to repair OBDII code B1544 Buick Mirror Motors Common Circuit problems?
The cost of repair can vary depending on the specific issue, parts needed, labor rates, and whether professional assistance is required. It is recommended to obtain estimates from different repair shops.
8. Can resetting the OBDII system clear the B1544 code related to Buick Mirror Motors Common Circuit?
Resetting the OBDII system may temporarily clear the code, but if the underlying issue is not fixed, the code is likely to reappear. It is important to address the root cause of the problem for a permanent solution.
9. Are there any recalls or technical service bulletins related to OBDII code B1544 Buick Mirror Motors Common Circuit problems?
It is recommended to check with Buick dealerships or online resources for any recalls or technical service bulletins related to OBDII code B1544 Mirror Motors Common Circuit issues to see if your vehicle is affected.
10. How can I prevent OBDII code B1544 Buick Mirror Motors Common Circuit problems in the future?
Regularly inspecting and maintaining the mirror motors, wiring, and control system can help prevent issues related to OBDII code B1544. Additionally, addressing any minor problems promptly can prevent them from escalating.
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