Engine-Codes - Generic - B1591

B1591 Code - Autolamp Delay Decrease Circuit Failure

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

|B1591 code possible causes

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

|How is the B1591 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 B1591 code

Labor: 1.0

The cost to diagnose the B1591 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 B1591 code possible symptoms?

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

|What is B1591 code meaning?

The Body Control Module (BCM) monitors the Autolamp Delay. The BCM sets the OBDII code when the Autolamp Delay is not to factory specifications.

|Need more information with the B1591 code?

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|B1591 code information for specific makes

|Need help with a B1591 code?

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