B1896 Drivers Passengers Door Ajar Output Circuit Short to Battery

OBD2 Code: B1896

Description: This code indicates a short circuit in the door ajar output circuit for either the driver’s or passenger’s door, which is causing an unintended connection to the battery.

Definition: The B1896 code is triggered when there is a detected short to battery in the door ajar indicator circuit. This typically involves issues with wiring or connectors that are causing an electrical fault, leading to incorrect readings of whether a vehicle door is open or closed.

B1896: Drivers passengers door ajar output circuit short to battery

Severity: Moderate

Common Causes

b1896 – Drivers Passengers Door Ajar Output Circuit Short to Battery

Common causes:

• Faulty door ajar switch
• Short circuit in the wiring harness
• Corrosion or poor connection in the circuit
• Faulty body control module (BCM)

Common Misdiagnosis

OBD2 Code: B1896

Description: Drivers Passengers Door Ajar Output Circuit Short to Battery

Common Misdiagnosis: Replacing the door ajar switch without checking for wiring issues or a short circuit in the harness.

Common Diagnostic Steps

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OBD2 Code: B1896

Description: Drivers Passengers Door Ajar Output Circuit Short to Battery

• Inspect the door ajar switch for damage or corrosion.
• Check the wiring harness and connectors for signs of wear, damage, or corrosion.
• Test the door ajar switch circuit for continuity and proper operation using a multimeter.
• Examine the fuse related to the door ajar system and replace if necessary.
• Inspect the Body Control Module (BCM) for any faults or issues.
• If applicable, check for Technical Service Bulletins (TSBs) related to this code for your vehicle model.
• If all components are functioning correctly, consider consulting with a professional technician for further diagnosis.