B1496: Decklid Punch-Out Sensor Open Circuit
The B1496 code indicates an open circuit in the decklid punch-out sensor circuit. This sensor detects when the rear hatch or trunk is released or unlatched. An open circuit means the body control module (BCM) is not receiving the expected signal from the sensor, often due to a break in the wiring or a faulty sensor.
1. Commonly Affected Makes
2. Most Common Causes
- Faulty decklid punch-out sensor
- Damaged or open wiring in the sensor circuit
- Corroded or loose sensor connector
- Faulty body control module (BCM)
3. Symptoms You Will Notice
- Trunk or rear hatch release may not work properly
- Possible warning light on the dashboard
4. Step-by-Step Diagnosis
Scan for codes and verify B1496 is present
Visually inspect the sensor wiring and connector for damage or corrosion
Test the sensor's resistance and compare to specifications
Check for continuity in the circuit between the sensor and BCM
5. Frequently Asked Questions
Is it safe to drive?▼
Yes, the vehicle is generally safe to drive. The issue is low severity and primarily affects trunk release functionality.
How much does it cost to fix?▼
Repair costs typically range from $100 to $300, depending on whether the sensor or wiring needs replacement.