STEP 1. Check of short to power supply, short to ground, and open circuit in EGTP, EGTG lines between the keyless operation antenna (Rear: Outer side) connector and the KOS&OSS-ECU connector.
STEP 3. Check whether the DTC is set again.
(1) Erase the DTC.
(2) Engine switch: "OFF"
(3) Close all the doors and press the lock/open switch of liftgate lock release handle to lock and unlock the door several times.
(4) Check if the DTC is set.
Is the DTC set?
Replace KOS-ECU and register the ID codes (Refer to ). Intermittent malfunction is suspected (Refer to GROUP 00 - How to Use Troubleshooting/Inspection Service Points - How to Deal with Intermittent Malfunction ).