No.6 LIFTGATE TURNS OVER OPERATION AND PLG BUZZER SOUNDS 1 TIME, WHILE AUTO OPEN/CLOSE FUNCTION [POWER LIFTGATE (PLG) SYSTEM]

id0903c9999400

6 | Liftgate reverses and PLG buzzer sounds 1 time, while auto open/close function
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DESCRIPTION | • Liftgate reverses while auto open or close operation without object is pinched, the switches (PLG front switch, PLG rear switch and/or transmitter) are operated and/or liftgate outer handle is operated. • PLG buzzer sounds 1 time when the liftgate reverses.
POSSIBLE CAUSE | • Start trigger signal temporary error ― Malfunction in PLG front switch related part • PLG front switch malfunction • Short to ground in wiring harness between PLG front switch and PLG control module ― Malfunction in PLG rear switch related part • PLG rear switch malfunction • Short to ground in wiring harness between PLG rear switch and PLG control module ― Malfunction in liftgate outer handle switch related part • Liftgate outer handle switch related part • Short to ground circuit in wiring harness between liftgate outer handle switch and PLG control module ― Malfunction in keyless entry system • PLG control module malfunction

When performing an asterisked (*) troubleshooting inspection, slightly shake the wiring harness and connectors while performing the inspection to discover whether poor contact points are the cause of any intermittent malfunctions. If there is a problem, verify that the connectors, terminals and wiring harnesses are connected correctly and undamaged.

Diagnostic procedure

STEP | INSPECTION | ACTION
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1 | INSPECT PLG FRONT SWITCH • Inspect the PLG front switch. (See POWER LIFTGATE (PLG) FRONT SWITCH INSPECTION.) • Is the PLG front switch normal? | Yes | Go to the next step.
No | Replace the PLG front switch. (See POWER LIFTGATE (PLG) FRONT SWITCH REMOVAL/INSTALLATION.)
2* | INSPECT WIRING HARNESS BETWEEN PLG FRONT SWITCH AND PLG CONTROL MODULE • Turn the ignition switch to OFF position. • Disconnect the PLG front switch and PLG control module connectors. • Inspect for short to ground circuit between PLG front switch terminal C (L.H.D), I (R.H.D) and PLG control module terminal 3Q. • Is the short to ground circuit detected? | Yes | Repair or replace malfunctioning part.
No | Go to the next step.
3 | INSPECT PLG REAR SWITCH • Inspect the PLG rear switch. (See POWER LIFTGATE (PLG) REAR SWITCH INSPECTION.) • Is the PLG rear switch normal? | Yes | Go to the next step.
No | Replace the PLG rear switch. (See POWER LIFTGATE (PLG) REAR SWITCH REMOVAL/INSTALLATION.)
4* | INSPECT WIRING HARNESS BETWEEN PLG REAR SWITCH AND PLG CONTROL MODULE • Turn the ignition switch to OFF position. • Disconnect the PLG rear switch and the PLG control module connectors. • Inspect for short to ground circuit between PLG rear switch terminal C and PLG control module terminal 2B. • Is the short to ground circuit detected? | Yes | Repair or replace malfunctioning part.
No | Go to the next step.
5 | INSPECT LIFTGATE OUTER HANDLE SWITCH • Inspect the liftgate outer handle switch. (See LIFTGATE OUTER HANDLE SWITCH INSPECTION.) • Is the liftgate outer handle switch normal? | Yes | Go to the next step.
No | Replace the liftgate outer handle. Note • The liftgate outer handle switch is integrated with the liftgate outer handle. (See LIFTGATE OUTER HANDLE REMOVAL/INSTALLATION.)
6* | INSPECT WIRING HARNESS BETWEEN LIFTGATE OUTER HANDLE SWITCH AND PLG CONTROL MODULE • Turn the ignition switch to OFF position. • Disconnect the liftgate outer handle switch and the PLG control module connectors. • Inspect for short to ground circuit between liftgate outer handle switch and PLG control module. • Is the short to ground circuit detected? | Yes | Repair or replace malfunctioning part.
No | Go to the next step.
7 | INSPECT KEYLESS ENTRY SYSTEM OPERATION • Inspect the keyless system operation. • Does the keyless entry system operate properly? | Yes | Replace the PLG control module. (See POWER LIFTGATE (PLG) CONTROL MODULE REMOVAL/INSTALLATION.)
No | Perform the keyless entry symptom troubleshooting procedure. (See SYMPTOM TROUBLESHOOTING CHART [KEYLESS ENTRY SYSTEM].) (See SYMPTOM TROUBLESHOOTING CHART [ADVANCED KEYLESS ENTRY AND START SYSTEM].)