B1742 Code - Mirror Passenger Vertical Switch Circuit Open
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
- B1742 indicates Mirror Passenger Vertical Switch Circuit Open.
- 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 B1742 Description
What are the Possible Causes of the DTC B1742?
- 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 B1742?
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 B1742 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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Get the B1742 code diagnosed by a professional: Find a repair shop in your area
Information for Specific Makes
- B1742 Hyundai — Pressure-Side Impact Sensor Front Driver Communication Error
- B1742 KIA — Pressure-Side Impact Sensor Front Driver Communication Error
Frequently Asked Questions about B1742 Code
1. What does the OBDII code B1742 mean?
The code B1742 indicates an open circuit in the passenger-side mirror vertical switch, meaning the circuit is not completing as expected.
2. What are the common symptoms of the B1742 code?
Symptoms include the passenger-side mirror not adjusting vertically, unresponsiveness of the mirror switch, or intermittent mirror functionality.
3. What causes the B1742 code to appear?
Common causes include a faulty mirror vertical switch, damaged or corroded wiring, a loose connector, or a malfunction in the passenger-side mirror motor.
4. How can I diagnose the B1742 code?
Start by visually inspecting the wiring and connectors for damage or corrosion, test the switch for continuity, and check the mirror motor for proper operation.
5. Can I still drive my car with the B1742 code?
Yes, the car is still safe to drive, but you may experience limited or no vertical adjustment for the passenger-side mirror, which could impact visibility.
6. How do I fix the B1742 code?
Repairs may involve replacing the mirror vertical switch, repairing or replacing damaged wiring, or replacing the mirror motor if it’s defective.
7. How much does it cost to fix the B1742 code?
Repair costs can vary, but replacing a mirror switch typically ranges from $50 to $150, while wiring repairs or mirror motor replacement may cost more.
8. Can a blown fuse cause the B1742 code?
While unlikely, a blown fuse related to the mirror system could contribute to the issue. Check all related fuses to rule this out.
9. Is the B1742 code specific to certain vehicles?
This code is most commonly associated with vehicles that use advanced mirror control systems, but it can appear in various makes and models.
10. Do I need a professional to fix the B1742 code?
While some DIYers can handle basic wiring or switch replacements, a professional may be needed for more complex diagnostics or repairs.
Discuss the causes and fixes for B1742 OBDII Code
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