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Incomplete Latch Cinch - Overcurrent

NOTE: After making any repairs, perform BODY VERIFICATION TEST  under VERIFICATION TESTS.
  1. Using scan tool, record and erase DTCs. Turn ignition off. Wait 10 seconds. Turn ignition on. Operate power liftgate several times if possible. Recheck for DTCs. If INCOMPLETE LATCH CINCH - OVERCURRENT resets, go to next step. If INCOMPLETE LATCH CINCH - OVERCURRENT does not reset, system is operating properly at this time. Check for intermittent poor connections or faulty circuits.
  2. Visually inspect liftgate for proper alignment, damaged strikers, damaged latches or obstructions. Repair as necessary. If possible, check operation of liftgate on a known-good vehicle. If liftgate effort is excessive, diagnose power liftgate by symptom. See TROUBLE SHOOTING in POWER SLIDING DOORS & LIFTGATE article. If liftgate effort is not excessive, go to next step.
  3. Turn ignition off. Disconnect liftgate cinch/release motor connector. See Figure. To access connector, door panel will need to be removed. For removal and installation procedures, see POWER SLIDING DOOR MODULE  under REMOVAL & INSTALLATION. Disconnect Power Liftgate Module (PLGM) connector C2. See Figure. To access connector, left rear trim will need to be removed. See POWER LIFTGATE MODULE  under REMOVAL & INSTALLATION. Using DVOM, measure resistance of Tan/Gray wire between PLGM connector C2 terminal No. 8 and liftgate cinch/release motor connector terminal No. 6. See Figure. Wiggle wiring harness with DVOM connected. If resistance is steady at 5 ohms or less, go to next step. If resistance is greater than 5 ohms or varies, repair open in Tan/Gray wire between liftgate cinch/release motor and PLGM.
  4. Using DVOM, measure resistance of Tan/White wire between PLGM connector C2 terminal No. 9 and liftgate cinch/release motor connector terminal No. 5. Wiggle wiring harness with DVOM connected. If resistance is steady at 5 ohms or less, go to next step. If resistance is greater than 5 ohms or varies, repair open in Tan/White wire between liftgate cinch/release motor and PLGM.
  5. Using DVOM, measure resistance between ground and PLGM connector C2 terminal No. 8 (Tan/Gray wire). Wiggle wiring harness with DVOM connected. If resistance is greater than 1000 ohms or varies, go to next step. If resistance is steady at 1000 ohms or less, repair short to ground in Tan/Gray wire between liftgate cinch/release motor and PLGM.
  6. Using DVOM, measure resistance between PLGM connector C2 terminals No. 9 (Tan/White wire) and No. 20 (Black/Light Green wire). Wiggle wiring harness with DVOM connected. If resistance is greater than 1000 ohms or varies, go to next step. If resistance is steady at 1000 ohms or less, repair short between Black/Gray and Tan/White wires between liftgate cinch/release motor and PLGM. See POWER DOOR LOCKS in appropriate SYSTEM WIRING DIAGRAMS article in ELECTRICAL.
  7. Using DVOM, measure resistance between ground and PLGM connector C2 terminal No. 9 (Tan/White wire). Wiggle wiring harness with DVOM connected. If resistance is greater than 1000 ohms or varies, go to next step. If resistance is steady at 1000 ohms or less, repair short to ground in Tan/White wire between liftgate cinch/release motor and PLGM.
  8. Using DVOM, measure resistance between PLGM connector C2 terminals No. 8 (Tan/Gray wire) and No. 20 (Black/Light Green wire). Wiggle wiring harness with DVOM connected. If resistance is greater than 1000 ohms or varies, replace liftgate cinch/release motor. If resistance is steady at 1000 ohms or less, repair short between Black/Gray and Tan/Gray wires between liftgate cinch/release motor and PLGM. See POWER DOOR LOCKS in appropriate SYSTEM WIRING DIAGRAMS article in ELECTRICAL.
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