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AutoCodes - Generic - B1421

B1421 Code - Passenger Power Window Motor Circuit Short To Ground

- Code Popularity: 18,985 Views
- Repair Importance Level: 3/3
- Repair Difficulty Level: 3/3
Table of contents
By - Updated Apr 09, 2019
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|Code B1421 Possible Causes

  • 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 do I Fix the Code B1421?

Check the "Possible Causes" listed above. Visually inspect the related wiring harness and connectors. Check for damaged components and look for broken, bent, pushed out, or corroded connector's pins.

Does your Car have Safety Recalls? → Check here

|What is the Cost to Diagnose the Code B1421?

Labor: 1.0

The cost of diagnosing the B1421 code is 1.0 hour of labor. The auto repair labor rates vary by location, your vehicle's make and model, and even your engine type. Most auto repairs shops charge between $75 and $150 per hour.

|What are Code B1421 Possible Symptoms?

  • Engine Light ON (or Service Engine Soon Warning Light)

|Code B1421 Description

The Body Control Module (BCM) monitors the Passenger Power Window Motor. The BCM sets the OBDII code when the Passenger Power Window Motor is not to factory specifications.

OBDII Code B1421 - Passenger Power Window Motor Circuit Short To Ground -
B1421 Code - Passenger Power Window Motor Circuit Short To Ground

|Need More Information on the B1421 Code?

Need more information on how to fix the B1421 code? Get Access to Factory Service Manuals

|Information for Specific Makes

|Need Help with the B1421 Code?

Get the B1421 code diagnosed by a professional: Find a repair shop in your area

|Code B1421 comments

Help us improve Leave a comment below or tell us if the information above helps you fix the code. What are the symptoms on your vehicle for the B1421 code? Have you replaced any parts?
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