B1420 Code - Passenger Power Window Motor Circuit Short To Battery
Quick Answer
The Body Control Module (BCM) monitors the Passenger Power Window Motor. Common causes include Faulty Passenger Power Window Motor, Passenger Power Window Motor harness is open or shorted, Passenger Power Window 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
- B1420 indicates Passenger Power Window Motor Circuit Short To Battery.
- Common causes
- Common causes include Faulty Passenger Power Window Motor, Passenger Power Window Motor harness is open or shorted, Passenger Power Window 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 B1420 Description
What are the Possible Causes of the DTC B1420?
- Faulty Passenger Power Window Motor
- Passenger Power Window Motor harness is open or shorted
- Passenger Power Window Motor circuit poor electrical connection
- Faulty Body Control Module (BCM)
How to Fix the DTC B1420?
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 B1420 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 B1420 code diagnosed by a professional: Find a repair shop in your area
Information for Specific Makes
- B1420 Buick — Device Voltage Circuit
- B1420 Cadillac — Device Voltage Circuit
- B1420 Chevrolet — Device Voltage Circuit
- B1420 GMC — Device Voltage Circuit
Frequently Asked Questions about B1420 Code
1. What are the common symptoms of OBDII code B1420 - Passenger Power Window Motor Circuit Short To Battery?
The common symptoms include the passenger power window not functioning at all or only working intermittently, unusual noises coming from the window motor, or the window getting stuck in one position.
2. What are the possible causes of OBDII code B1420 - Passenger Power Window Motor Circuit Short To Battery?
Possible causes include damaged wiring in the power window circuit, a short to battery in the power window motor circuit, a faulty power window switch, or a malfunctioning power window motor.
3. How can I diagnose OBDII code B1420 - Passenger Power Window Motor Circuit Short To Battery?
Diagnosing this code involves visually inspecting the power window wiring for damage, testing the power window switch for proper function, checking the power window motor for shorts, and using a multimeter to test for voltage irregularities.
4. Can I still drive my vehicle with OBDII code B1420 - Passenger Power Window Motor Circuit Short To Battery?
It is generally safe to drive the vehicle with this code, but you may experience inconvenience due to the non-functioning power window. It is recommended to address the issue promptly to avoid further damage.
5. How can I repair OBDII code B1420 - Passenger Power Window Motor Circuit Short To Battery?
Repairing this code may involve repairing or replacing damaged wiring in the power window circuit, replacing a faulty power window switch, or replacing the power window motor if necessary.
6. Is it possible to reset OBDII code B1420 - Passenger Power Window Motor Circuit Short To Battery without repairs?
Resetting the code without addressing the underlying issue will not solve the problem permanently. It is recommended to diagnose and repair the root cause to prevent the code from reoccurring.
7. Can extreme weather conditions cause OBDII code B1420 - Passenger Power Window Motor Circuit Short To Battery?
Extreme weather conditions can potentially contribute to wiring damage in the power window circuit, which may lead to shorts and trigger this OBDII code.
8. Are there any preventative maintenance tips to avoid OBDII code B1420 - Passenger Power Window Motor Circuit Short To Battery?
Regularly inspecting the power window wiring for signs of wear or damage, avoiding forcing the power window to operate when obstructed, and using the power window system responsibly can help prevent this issue.
9. How long does it typically take to repair OBDII code B1420 - Passenger Power Window Motor Circuit Short To Battery?
The repair time can vary depending on the specific cause of the issue and the extent of the damage. Simple repairs like fixing wiring may take a short time, while motor or switch replacements may require more time.
10. Can a DIY enthusiast fix OBDII code B1420 - Passenger Power Window Motor Circuit Short To Battery?
DIY enthusiasts with automotive repair experience and the necessary tools can potentially address this code by following repair guides and procedures. However, if unsure, it is recommended to seek professional help to avoid further complications.
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