B1832 – Door Unlock Disarm Switch Circuit Short To Battery

The ODBII code B1832 indicates a short circuit in the door unlock disarm switch circuit, meaning the circuit is continuously receiving power as if the switch is always activated, which can affect the vehicle’s security system.

The severity of ODBII code B1832 is moderate.

Common Causes For: B1831 Door Unlock Disarm Switch Circuit Open

• Shorted wiring or connectors
• Faulty door unlock switch
• Damaged or corroded connectors
• Malfunctioning body control module (BCM)
• Grounding issues
• Faulty relay or fuse
• Water intrusion or moisture damage

Common misdiagnosis for B1832 Door Unlock Disarm Switch Circuit Short To Battery

• Faulty door lock actuator
• Malfunctioning body control module (BCM)
• Wiring issues or shorts in the door harness
• Defective door unlock switch
• Issues with the key fob or remote entry system
• Battery or charging system problems
• Faulty ground connections

Common Troubleshooting Steps

The OBD-II code B1832 indicates a problem with the door unlock disarm switch circuit, specifically a short to battery. This code is often related to the vehicle’s security system or central locking system. Here are some common troubleshooting steps to diagnose and resolve the issue:

• Check the Vehicle’s Manual: Refer to the vehicle’s service manual for specific information related to the B1832 code, including wiring diagrams and component locations.
• Visual Inspection:
• Inspect the wiring and connectors associated with the door unlock disarm switch. Look for any signs of damage, fraying, or corrosion.
• Check the door harness for any pinched or broken wires, especially where the harness passes through the door.
• Test the Door Unlock Disarm Switch:
• Use a multimeter to test the switch for continuity. If the switch is stuck in the “on” position or is malfunctioning, it may cause a short to battery.
• If the switch is faulty, replace it.
• Check for Shorts:
• With the multimeter, check for continuity between the door unlock disarm switch circuit and the battery positive terminal. A reading indicates a short.
• Inspect the wiring for any points where it may be pinched or damaged, causing a short circuit.
• Inspect the Body Control Module (BCM):
• The BCM controls various functions, including the door locks. Check for any fault codes in the BCM that may provide additional information.
• If the BCM is suspected to be faulty, it may need to be tested or replaced.
• Check Fuses:
• Inspect the fuses related to the door locks and security system. A blown fuse may indicate an underlying issue that needs to be addressed.
• Scan for Additional Codes:
• Use an OBD-II scanner to check for any other related trouble codes that may provide more context to the issue.
• Clear Codes and Test Drive:
• After performing repairs, clear the trouble codes using the OBD-II scanner and take the vehicle for a test drive to see if the code returns.
• Consult a Professional:
• If the issue persists after performing these steps, it may be necessary to consult a professional mechanic or an automotive electrician for further diagnosis. By following these steps, you should be able to identify and resolve the issue related to the B1832 code.