Diagnostic Aids
WARNING: This page is about a different car, the 2007 Hummer H2. However, it is still accessible from the selected car via links, so may be relevant.
DTC B3825 will set as current if any of the following conditions are present:
- An open ECC fuse
- An open or short to ground in the liftgate lock relay battery positive voltage circuit
- A faulty liftgate lock relay
- An open or short to ground in the liftgate lock relay control circuit
- A short to ground in the liftgate lock actuator lock control circuit will open the electronic climate control (ECC) with a lock command
- A faulty BCM