Engine-Codes - Ford - B1572 FORD

B1572 FORD Code - Door Ajar Left Right Switch Circuit Open

- Code Popularity: 783 Views
- Repair Importance Level: 3/3
- Repair Difficulty Level: 3/3
Table of contents

|What are the Possible Causes of the B1572 FORD Code?

  • 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 to Fix the B1572 FORD Code?

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 FORD code?

Labor: 1.0

The cost to diagnose the B1572 FORD 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 FORD code possible symptoms?

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

|What Does the B1572 FORD Code Mean?

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.

Door Ajar Left Right Switch Circuit Open

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