Power Trunk/Liftgate Release Circuit Malfunction
What does B1307 mean?
The B1307 code means the vehicle's onboard diagnostic system has detected: Power Trunk/Liftgate Release Circuit Malfunction. This is a low severity code.
Common Symptoms
- Trunk or liftgate release button not working
- Power liftgate not opening or closing
- Trunk release from key fob inoperative
- Liftgate stops mid-travel
- Liftgate warning light on dashboard
Probable Causes (Ranked by Likelihood)
- Failed trunk/liftgate release actuator Very High
- Defective trunk release switch or button High
- Liftgate strut or motor failure Moderate
- Damaged wiring to trunk release mechanism Moderate
- BCM not sending release signal Low
Step-by-Step Diagnostic Procedure
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Test trunk release from interior button, key fob, and exterior handle
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Check trunk release fuse
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Test actuator by applying direct power
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Inspect wiring to trunk release mechanism
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Verify BCM is commanding the release with scan tool
Frequently Asked Questions
Can I still open the trunk manually?
Most vehicles have a physical key cylinder or emergency release inside the trunk. Check your owner's manual for the manual release location.
Why does the power liftgate stop mid-travel?
Power liftgate struts lose strength over time and cannot hold the weight of the gate. The motor may also be weakening, causing it to stop before reaching full open position.
Can cold weather cause liftgate issues?
Yes. Cold temperatures thicken lubricants and reduce strut gas pressure, making power liftgate operation sluggish or causing the system to stop prematurely.