Engine-Codes - Generic - B1320

B1320 Code - Driver Door Ajar Circuit Open

- Code Popularity: 20,653 Views
- Repair Importance Level: 3/3
- Repair Difficulty Level: 3/3
Table of contents

|What are the Possible Causes of the Code B1320?

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

|How to Fix the B1320 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 Code B1320?

Labor: 1.0

The cost to diagnose the B1320 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.

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|What are Code B1320 Possible Symptoms?

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

|What Does the B1320 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 front door ajar input circuit.

B1320 Code - Driver Door Ajar Circuit Open

|Need more Information on the B1320 Code?

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|Code B1320 Information for Specific Makes

|Need Help with the B1320 Code?

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