Only Rear Window Cargo Door Release Function Does Not Operate

Set parking brake. Place transmission in Park. Press rear window release switch on instrument panel. If endgate opens, go to next step. If endgate does not open, problem is not remote keyless entry related.
Disconnect keyless entry receiver connector. Connect test light between connector terminal "F" (Orange wire) and ground, and also between terminal "E" (Orange wire) and ground. If test light comes on, go to next step. If test light does not come on, repair open circuit in Orange wire.
Connect self-powered test light between connector terminal "H" (Tan wire) and ground. If test light comes on, replace keyless entry receiver. Reprogram replacement keyless entry receiver. See PROGRAMMING PROCEDURE . If test light does not come on, repair open circuit in Tan wire.
Reconnect keyless entry receiver connector. Connect voltmeter between remote keyless entry receiver connector terminal "G" (Black or Black/White wire) and ground. Press transmitter to open rear window. If battery voltage is present, repair open circuit in Black or Black/White wire. If battery voltage is not present, replace keyless entry receiver. Reprogram replacement keyless entry receiver. See PROGRAMMING PROCEDURE .