B1743 Code - Mirror Passenger Vertical Switch Circuit Short To Battery
Quick Answer
The Body Control Module (BCM) monitors the Mirror Passenger Vertical Switch. Common causes include Faulty Mirror Passenger Vertical Switch, Mirror Passenger Vertical Switch harness is open or shorted, Mirror Passenger Vertical 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
- B1743 indicates Mirror Passenger Vertical Switch Circuit Short To Battery.
- Common causes
- Common causes include Faulty Mirror Passenger Vertical Switch, Mirror Passenger Vertical Switch harness is open or shorted, Mirror Passenger Vertical 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 B1743 Description
What are the Possible Causes of the DTC B1743?
- Faulty Mirror Passenger Vertical Switch
- Mirror Passenger Vertical Switch harness is open or shorted
- Mirror Passenger Vertical Switch circuit poor electrical connection
- Faulty Body Control Module (BCM)
How to Fix the DTC B1743?
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 B1743 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 B1743 Code
1. What does the OBDII code B1743 mean?
B1743 indicates a short to battery in the passenger-side mirror's vertical switch circuit, which controls the vertical movement of the mirror.
2. What are the common symptoms of code B1743?
Symptoms may include the passenger-side mirror not adjusting vertically, erratic mirror movement, or the mirror adjustment switch being unresponsive.
3. What causes the B1743 code to appear?
The code is typically caused by a short circuit in the wiring, a faulty mirror adjustment switch, damaged connectors, or an issue with the mirror motor.
4. How can I diagnose the B1743 code?
Start by inspecting the wiring and connectors for damage or corrosion. Then, test the mirror adjustment switch and the mirror motor for proper functionality.
5. Can I still drive my car with the B1743 code active?
Yes, the issue does not affect drivability, but it may limit the functionality of the passenger-side mirror, which can impact visibility and safety.
6. How do I fix the B1743 code?
Repairs may involve fixing or replacing damaged wiring, cleaning or reconnecting loose connectors, replacing the mirror adjustment switch, or replacing the mirror motor if it's faulty.
7. How much does it cost to repair the B1743 code?
Repair costs vary depending on the issue. Replacing a mirror switch or repairing wiring typically costs $50-$200, while replacing a mirror motor may cost $200-$400.
8. Can I clear the B1743 code without fixing the issue?
Clearing the code without addressing the root cause will only temporarily remove it. The code will likely return once the system detects the fault again.
9. Is the B1743 code specific to certain car brands?
No, the code can appear on any vehicle equipped with OBDII diagnostics, but the exact components involved may vary by make and model.
10. Can a blown fuse cause the B1743 code?
A blown fuse is unlikely to cause this specific code since it points to a short to battery, but it's still worth checking the fuse for the mirror circuit during diagnosis.
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