Engine-Codes - Buick - B1390 BUICK

B1390 BUICK Code - Device Voltage Reference Input Circuit

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

|B1390 BUICK code possible causes

  • Faulty Body Control Module (BCM)
  • Body Control Module (BCM) harness is open or shorted
  • Body Control Module (BCM) circuit poor electrical connection

|How is the B1390 BUICK 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 B1390 BUICK code

Labor: 1.0

The cost to diagnose the B1390 BUICK 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 B1390 BUICK code possible symptoms?

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

|What is B1390 BUICK code meaning?

The Body Control Module (BCM) has an internal precision battery voltage sensor connected to a dedicated battery positive voltage and dedicated ground. The BCM then compares the voltage of the sensors to the battery positive voltage. The Diagnostic Trouble Code (DTC) B1390 will set if these voltages are different by greater than 2 volts.

|Need more information with the B1390 BUICK code?

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|Need help with a B1390 BUICK code?

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