B1332 – Decklid Ajar Rear Door Circuit Open

The ODBII code B1332 indicates that there is an open circuit in the rear door’s decklid ajar switch, which means the system is detecting that the rear door is not properly closed or the switch is malfunctioning.

The severity of ODBII code B1332 Decklid Ajar Rear Door Circuit Open is generally considered moderate.

Common Causes For: B1331 Decklid Ajar Rear Door Circuit Failure

• Faulty decklid ajar switch
• Damaged wiring or connectors in the rear door circuit
• Short circuit in the wiring harness
• Corroded connectors
• Malfunctioning body control module (BCM)
• Improperly aligned or misadjusted decklid
• Water intrusion or moisture in the circuit
• Faulty ground connection

Common misdiagnosis for B1332 Decklid Ajar Rear Door Circuit Open

• Faulty rear door latch
• Malfunctioning door switch
• Wiring issues or shorts in the circuit
• Faulty body control module (BCM)
• Incorrectly installed or damaged rear door
• Issues with the vehicle’s central locking system
• Software glitches in the vehicle’s electronic systems

Common Troubleshooting Steps

The OBD-II code B1332 indicates a problem with the “Decklid Ajar Rear Door Circuit,” specifically that the circuit is open. This code is often related to the rear trunk or hatch lid and can be triggered by various issues. Here are some common troubleshooting steps to diagnose and resolve the problem:

• Visual Inspection: **Check the Decklid/Hatch: Ensure that the decklid or hatch is properly closed. Sometimes, the latch may not engage fully.
• **Inspect Wiring and Connectors: Look for any damaged, frayed, or corroded wires and connectors in the circuit related to the decklid ajar sensor.
• Test the Decklid Ajar Switch: **Locate the Switch: Find the decklid ajar switch, which is usually located near the latch mechanism.
• **Check Functionality: Manually operate the switch to see if it is functioning correctly. You can use a multimeter to test for continuity when the switch is activated.
• Check for Faulty Ground: **Inspect Ground Connections: Ensure that the ground connections for the decklid ajar circuit are secure and free of corrosion. A poor ground can cause the circuit to appear open.
• Scan for Additional Codes: **Use a Diagnostic Scanner: Check for any other related trouble codes that may provide more context or indicate additional issues in the system.
• Inspect the Body Control Module (BCM): **Check BCM Functionality: The BCM controls many functions related to the vehicle’s body, including the decklid ajar circuit. Ensure that the BCM is functioning properly and that there are no software issues.
• Test the Circuit: **Use a Multimeter: Measure the voltage and resistance in the circuit to ensure that it is within specifications. Look for any open circuits or shorts.
• Clear the Code and Test Drive: **Reset the Code: After performing any repairs or adjustments, clear the code using a diagnostic scanner.
• **Test Drive the Vehicle: Take the vehicle for a test drive to see if the code reappears. Monitor the decklid to ensure it is functioning correctly.
• Consult Repair Manual: **Refer to Vehicle-Specific Repair Manual: If the issue persists, consult the vehicle’s repair manual for specific troubleshooting steps and wiring diagrams related to the decklid ajar circuit.
• Seek Professional Help: **Visit a Mechanic: If you are unable to resolve the issue, it may be best to consult a professional mechanic who has experience with your specific vehicle make and model. By following these steps, you should be able to identify and resolve the issue related to the B1332 code.