B1497 – Decklid Punch-Out Sensor Battery Short

The ODBII code B1497 indicates a short circuit in the decklid punch-out sensor’s battery circuit, which may affect the sensor’s functionality related to the vehicle’s trunk or hatch.

The severity of ODBII code B1497 is moderate.

Common Causes For: B1496 Decklid Punch-Out Sensor Open Circuit

• Shorted wiring or connectors
• Faulty decklid punch-out sensor
• Corroded electrical connections
• Damaged harness
• Malfunctioning body control module (BCM)

Common misdiagnosis for B1497 Decklid Punch-Out Sensor Battery Short

• Faulty decklid punch-out sensor
• Wiring issues or shorts in the harness
• Malfunctioning body control module (BCM)
• Battery or power supply problems
• Incorrectly installed or damaged decklid
• Issues with related sensors or switches
• Software or programming errors in the vehicle’s computer system

Common Troubleshooting Steps

When dealing with an OBD-II code B1497, which indicates a “Decklid Punch-Out Sensor Battery Short,” you can follow these common troubleshooting steps:

• Check the Vehicle’s Manual: Refer to the vehicle’s service manual for specific information related to the B1497 code and the decklid punch-out sensor system.
• Visual Inspection:
• Inspect the wiring and connectors associated with the decklid punch-out sensor for any signs of damage, corrosion, or loose connections.
• Look for any frayed wires or shorts that may be causing the issue.
• Test the Sensor:
• Use a multimeter to check the resistance and voltage of the decklid punch-out sensor. Compare the readings to the specifications in the service manual.
• If the sensor is faulty, it may need to be replaced.
• Check for Short Circuits:
• Inspect the wiring harness for any shorts to ground or other wires. This can often be the cause of a battery short code.
• Use a multimeter to check for continuity in the wiring and ensure there are no unintended connections.
• Inspect the Body Control Module (BCM):
• The BCM may be responsible for monitoring the decklid punch-out sensor. Check for any fault codes in the BCM and ensure it is functioning correctly.
• If necessary, reprogram or replace the BCM.
• Clear the Code:
• After performing any repairs or replacements, clear the OBD-II codes using a scan tool and take the vehicle for a test drive to see if the code returns.
• Check for Related Codes:
• Look for any other related trouble codes that may provide additional context for the issue. Sometimes multiple codes can point to a common problem.
• Consult Technical Service Bulletins (TSBs):
• Check for any TSBs related to the decklid punch-out sensor or the specific vehicle model, as manufacturers may have issued guidance on known issues.
• Professional Diagnosis:
• If the issue persists after performing the above steps, consider seeking help from a professional mechanic or dealership for a more in-depth diagnosis. By following these steps, you should be able to identify and resolve the issue related to the B1497 code.