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Engine-Codes - Generic - B1572

B1572 Code - Door Ajar Left Right Switch Circuit Open

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

|B1572 code possible causes

  • Faulty Door Ajar Left Right Switch
  • Door Ajar Left Right Switch harness is open or shorted
  • Door Ajar Left Right Switch circuit poor electrical connection
  • Faulty Smart Junction Box (SJB)

|How is the B1572 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 B1572 code

Labor: 1.0

The cost to diagnose the B1572 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 B1572 code possible symptoms?

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

|What is B1572 code meaning?

The Smart Junction Box (SJB) sends a voltage signal to the door ajar switches. The door ajar switch is closed with the door closed. When the door is opened, the signal to ground is interrupted indicating an open door to the SJB. The Diagnostic Trouble Code (DTC) sets when the SJB detects an open from the LH rear door ajar input circuit.

|Need more information with the B1572 code?

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|B1572 code information for specific makes

|Need help with a B1572 code?

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