Keyless Access System Symptom

Symptom	Diagnostic procedure	Also check for
Cannot select ON mode with keyless access and with the keyless remote touching the power switch	Symptom troubleshooting	Check the No. B1 , No. B2-3 , No. B3-3 , No. B3-4 , and No. B21 fuses Check the No. D3 fuse Poor connections at the body control module +B P-ACT DRV line open GND line open/short or poor ground SS1(+) line open/short SS2(-)line open/short TCU WAKE UP line open/short IGNTRX line open/short L-line Keyless remote Body control module Harness/connectors Power switch
Cannot select ON mode with keyless access, but can select ON mode with the keyless remote touching the power switch	Symptom troubleshooting	Body control module LF antenna Keyless remote RF unit Low or weak keyless remote battery Harness/connectors
Cannot select ON mode with the keyless remote touching the power switch, but can select ON mode with keyless access	Check the body control module	Body control module is not registered Body control module Not registered IGNTRX line open/short Harness/connectors
The mode changes between ACCESSORY and ON, but it does not change to OFF (LOCK)	Check the body control module Check the SBW shifter control module	Body control module ATP-P line open SBW shifter control module
The mode changes between ACCESSORY and ON, but it is difficult to change to OFF (LOCK)	Check the body control module Check the gauge control module	Gauge control module Body control module PCM B-CAN communication line open/short F-CAN communication line open/short Speed signal line open
Power switch does not work	Check for DTCs. If any DTC is indicated, go to the DTC troubleshooting	ACC relay circuit Body control module Power switch SS1(+) line short SS2(-) line short Harness

Symptom	Diagnostic procedure	Also check for
Security indicator blinks	Symptom troubleshooting	Gauge control module Body control module PCM Harness/connections
All the doors will not lock and unlock	Symptom troubleshooting	Body control module LF antenna Driver's door lock knob switch Door outer handle touch sensor/lock switch Door lock actuators Keyless remote Low or weak keyless remote battery Not registered
The doors will not unlock or lock with the keyless remote, but will unlock or lock with the door outer handles	Symptom troubleshooting	Keyless remote battery Keyless remote LF antenna Body control module B-CAN communication line Harness/connections
The doors will not unlock or lock with the door outer handle touch sensor or lock switch, but will unlock or lock with the keyless remote	Symptom troubleshooting	Door outer handle touch sensor/lock switch Body control module Keyless remote Not registered Harness/connections