You have to pull the inside door panel off an check it out , only way !
- The lift gate latch release is inoperative/does not operate correctly
- Circuitry
- Liftgate release switch (integral to the liftgate release handle)
- Liftgate release motor (integral to the liftgate latch)
- Power liftgate module
- SJB
Normal Operation
The smart junction box (SJB) does not release the liftgate unless the doors have been unlocked electronically or the request is initiated from a remote keyless entry (RKE) transmitter.
The SJB sends a voltage signal to the liftgate release switch (part of the liftgate release handle) through circuit CPL45 (BN). When the switch is activated (the handle is pulled), the signal is routed to ground through circuit GD150 (BK/WH). When the SJB detects a request from the liftgate release switch, the SJB provides voltage through circuit CPL10 (BN/BU) to the liftgate latch release motor (integral to the liftgate latch) (vehicles with a manual liftgate) or the power liftgate module (vehicles equipped with a power liftgate). For vehicles with a manual liftgate, ground for the liftgate latch is provided through circuit GD150 (BK/WH).
DTC B2666 - is an on-demand DTC that sets when the SJB detects a short to ground from the liftgate release switch input circuit.
DTC B273A - is an on-demand DTC that sets when the SJB detects a short to ground from the liftgate latch release output circuit.
DTC B273B - is an on-demand DTC that sets when the SJB detects an open or short to voltage from the liftgate latch release output circuit.
Possible Causes
- Circuit CPL45 (BN) open or short to ground
- Circuit CPL10 (GN/WH) open, short to ground or voltage
- Circuit GD150 (BK/WH) open
- Liftgate release switch (integral to the liftgate release handle)
- Liftgate release motor (integral to the liftgate latch)
- Power liftgate module
- SJB
Your best bet is to take it to the dealer !
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