Engine-Codes - Cadillac - B1420 CADILLAC

B1420 CADILLAC - Device Voltage Circuit

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

B1420 CADILLAC Possible Causes

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

How do I fix code B1420 CADILLAC?

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.

Cost of diagnosing the B1420 CADILLAC code

Labor: 1.0

The cost of diagnosing the B1420 CADILLAC 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.

Possible Symptoms

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

B1420 CADILLAC Meaning

The Body Control Module (BCM) monitors the battery voltage on the battery voltage signal circuit. Damage to components and incorrect data may occur when the voltage is out of range.

B1420 CADILLAC More Information

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