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Test K: Liftgate Does Not Unlock

NOTE: Normally, liftgate will unlock, but will not open. Hand latch release MUST be used to open liftgate.
  1. Press remote keyless entry transmitter TRUNK button. If liftgate lock releases, ensure hand latch operates properly. Lubricate latch as necessary. If liftgate lock does not release, go to next step.
  2. Connect New Generation Star (NGS) Tester (007-00500) to Data Link Connector (DLC). Access RAP FUNCTION TESTING, TRANSMITTER TIC/DATA. Press remote keyless entry transmitter TRUNK button. If LAST DATA RECEIVED displays TRUNK, go to next step. If LAST DATA RECEIVED does not display TRUNK, perform TEST D: LOCKS INOPERATIVE FROM REMOTE TRANSMITTER  .
  3. Disconnect Remote Anti-theft Personality (RAP) module harness connector C254. Measure voltage at terminal No. 7 (Brown/White wire) at RAP module connector C254. See Figure . If battery voltage exists, go to next step. If battery voltage does not exist, go to step 5).
  4. Disconnect liftgate lock actuator harness connector. Install jumper wire between ground and terminal No. 7 (Brown/White wire) at RAP module connector C254. Measure voltage of Pink/Orange wire at liftgate lock actuator harness connector. If battery voltage does not exist, go to next step. If battery voltage exists, replace RAP module.
  5. Remove liftgate release relay. Measure voltage between at terminals No. 86 and 87 (Black/White wire at both terminals) at liftgate release relay harness connector. See Figure . If battery voltage exists at both terminals, replace liftgate lock relay. If battery voltage does not exist at both connectors, repair open in Black/White wire.
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