B1748 Code - Mirror Passenger Horizontal Switch Circuit Short To Ground
Quick Answer
The Body Control Module (BCM) monitors the Mirror Passenger Horizontal Switch. Common causes include Faulty Mirror Passenger Horizontal Switch, Mirror Passenger Horizontal Switch harness is open or shorted, Mirror Passenger Horizontal 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
- B1748 indicates Mirror Passenger Horizontal Switch Circuit Short To Ground.
- Common causes
- Common causes include Faulty Mirror Passenger Horizontal Switch, Mirror Passenger Horizontal Switch harness is open or shorted, Mirror Passenger Horizontal 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 B1748 Description
What are the Possible Causes of the DTC B1748?
- Faulty Mirror Passenger Horizontal Switch
- Mirror Passenger Horizontal Switch harness is open or shorted
- Mirror Passenger Horizontal Switch circuit poor electrical connection
- Faulty Body Control Module (BCM)
How to Fix the DTC B1748?
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 B1748 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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Information for Specific Makes
- B1748 Hyundai — Pressure-Side Impact Sensor Front Passenger Communication Error
- B1748 KIA — Pressure-Side Impact Sensor Front Passenger Communication Error
Frequently Asked Questions about B1748 Code
1. What are the common symptoms of OBDII code B1748?
- Common symptoms include malfunctioning passenger side mirror adjustment controls, inoperative mirror movement, and potential illumination of the check engine light.
2. What causes the OBDII code B1748 to trigger?
- This code is triggered when the mirror passenger horizontal switch circuit experiences a short to ground, indicating an electrical issue in the mirror adjustment system.
3. How can I diagnose the Mirror Passenger Horizontal Switch Circuit Short To Ground issue?
- To diagnose this issue, you can inspect the wiring harness for any visible damage, test the switch for continuity, and use a multimeter to check for electrical shorts in the circuit.
4. Can a faulty mirror cause the OBDII code B1748 to appear?
- While a faulty mirror may not directly cause this code, it can contribute to issues with the mirror adjustment system, potentially leading to electrical shorts and triggering the B1748 code.
5. What are some repair tips for fixing the Mirror Passenger Horizontal Switch Circuit Short To Ground problem?
- Repair tips include repairing or replacing damaged wiring, checking and replacing the mirror switch if necessary, and resetting the fault codes after making repairs.
6. Is it safe to continue driving with the B1748 code present?
- It is generally safe to drive with this code, but it is recommended to address the underlying electrical issue promptly to ensure proper functioning of the mirror adjustment system.
7. Can I reset the OBDII code B1748 on my own?
- Yes, you can reset the code using an OBDII scanner or by disconnecting the car battery for a few minutes. However, it is important to address the root cause of the issue to prevent the code from reoccurring.
8. Are there any recalls or service bulletins related to the Mirror Passenger Horizontal Switch Circuit Short To Ground problem?
- Check with your vehicle manufacturer or authorized service center for any recalls or service bulletins related to this issue, as they may offer solutions or repairs covered under warranty.
9. Will fixing the Mirror Passenger Horizontal Switch Circuit issue be expensive?
- The cost of fixing this issue can vary depending on the extent of the damage and whether you choose to do the repairs yourself or take your vehicle to a mechanic. Simple repairs like fixing wiring may be relatively inexpensive.
10. Can extreme weather conditions contribute to the Mirror Passenger Horizontal Switch Circuit Short To Ground problem?
- Extreme weather conditions, such as exposure to moisture or temperature fluctuations, can potentially damage the electrical components in the mirror adjustment system and lead to the B1748 trouble code.
2. What causes the OBDII code B1748 to occur?
- The code B1748 is triggered when there is a short to ground in the circuit for the passenger side mirror horizontal switch.
3. How can I diagnose the OBDII code B1748?
- Diagnosing code B1748 involves checking the wiring and connections related to the passenger side mirror horizontal switch for any shorts to ground.
4. Can a blown fuse cause the OBDII code B1748 to appear?
- Yes, a blown fuse related to the passenger side mirror circuit can cause the code B1748 to be triggered.
5. What repair tips can help fix the OBDII code B1748?
- Repair tips include checking and repairing any damaged wiring, replacing blown fuses, and ensuring all connections related to the passenger side mirror switch are secure.
6. Is it safe to continue driving with the OBDII code B1748 present?
- It is generally safe to continue driving with this code, but it is recommended to address the issue promptly to restore proper functionality of the passenger side mirror.
7. Can a DIY enthusiast fix the OBDII code B1748 at home?
- Depending on their skill level, a DIY enthusiast may be able to fix the code B1748 by checking wiring, replacing fuses, and ensuring proper connections.
8. How much does it typically cost to repair the OBDII code B1748 at a mechanic or dealership?
- The cost of repairing code B1748 can vary depending on the labor rates and parts needed, but it may range from $100 to $300.
9. Are there any preventative measures to avoid the OBDII code B1748 from reoccurring?
- Regularly checking the condition of wiring and connections related to the passenger side mirror switch can help prevent the code B1748 from reoccurring.
10. Can extreme weather conditions contribute to the OBDII code B1748 being triggered?
- Extreme weather conditions can potentially cause wiring issues or connection problems that may lead to the code B1748 being triggered.
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