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Engine-Codes - Generic - B1402

B1402 Code - Driver Power Window Down Switch Circuit Failure

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

|B1402 code possible causes

  • Driver Power Window Regulator Electric Motor
  • Faulty Master Window Regulator Control Switch
  • Faulty Front Electronics Module (FEM)
  • Master Window Regulator Control Switch harness is open or shorted
  • Master Window Regulator Control Switch circuit poor electrical connection

|How is the B1402 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 B1402 code

Labor: 1.0

The cost to diagnose the B1402 code is 1.0 hour of labor. The auto repair's diagnosis time and labor rates vary by location, vehicle's make and model, and even your engine type. Most auto repair shops charge between $75 and $150 per hour.

|What are B1402 code possible symptoms?

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

|What is B1402 code meaning?

The driver power window is controlled by the Front Electronics Module (FEM). The driver power window regulator control switch and motor are hardwired directly to the FEM. The FEM will read the window regulator control switch actuation and provide the corresponding output to the window motor. If one-touch operation is selected, the FEM powers the driver window motor for seven seconds or until the FEM senses the motor is stalled. If the window track, regulator or glass weatherstrips cause the glass to bind, the FEM may interpret this as a motor stalled condition and halt motor operation.

|Need more information with the B1402 code?

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|B1402 code information for specific makes

|Need help with a B1402 code?

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