Engine-Codes - Generic - B1421

B1421 - Passenger Power Window Motor Circuit Short To Ground

Repair Importance Level: 3/3
Repair Difficulty Level: 3/3  What is this?
Table of contents

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 is the B1421 code repair?

Start by checking 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.

What is the cost to diagnose the B1421 code

Labor: 1.0

The cost to diagnose the B1421 code is 1.0 hour of labor. The auto repair labor rates vary widely across the country, and even within the same city. Most auto repairs shops charge between $75 and $150 per hour.
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Possible Symptoms

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

B1421 Meaning

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.

More Information

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Information for specific makes

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