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Component Testing

WARNING: This page does not describe the selected car, but rather 8 other vehicles, including the 2012 GMC Yukon XL, 2012 GMC Yukon, 2012 Chevrolet Tahoe, 2012 Chevrolet Suburban, and 2012 Chevrolet Avalanche. However, it is still accessible from the selected car via links, so may be relevant.
  1. Install a 20A fused jumper wire between the control terminal 1 and 12 V. Momentarily install a jumper wire between the control terminal 3 and ground. The liftgate latch assembly should perform the CINCH or RELEASE function.
    • If the function does not perform as specified, replace the liftgate latch assembly.
  2. Reverse the jumper wires; the liftgate latch assembly should perform the RELEASE or CINCH function.
    • If the function does not perform as specified, replace the liftgate latch assembly.