Keyless Access System Symptom Troubleshooting Index

NOTE: Before troubleshooting the keyless access system, make sure the fuses associated with the system is OK.

KEYLESS ACCESS SYSTEM SYMPTOM TROUBLESHOOTING INDEX

Symptom	Diagnostic procedure	Also check for
Cannot select ON mode with keyless access and with the keyless remote touching the engine start/stop switch	Symptom troubleshooting Refer to: Keyless Access System Symptom Troubleshooting - Cannot select ON mode with keyless access and with the keyless remote touching the engine start/stop switch	Check the No. Aa and No. Ad fuses Check the No. B18 fuse Check the No. C16 fuse Check the No. D1-3, No. D5, and No. D6 fuses Check the No. ED fuse Poor connections at the body control module Keyless remote Body control module Electric steering lock * Engine start/stop switch Harness/connections
Cannot select ON mode with keyless access, but can select ON mode with the keyless remote touching the engine start/stop switch	Symptom troubleshooting - Refer to: Keyless Access System Symptom Troubleshooting - Cannot select ON mode with keyless access, but can select ON mode with the keyless remote touching the engine start/stop switch	Body control module LF antenna Keyless remote Low or weak keyless remote battery Harness/connections
The mode changes between ACC and ON, but it does not change to OFF (LOCK)	Check the body control module Check the TCM	Body control module ATP-P line open TCM
Engine start/stop switch does not work	Check for DTCs. If any DTC is indicated, go to the DTC troubleshooting	ACC relay circuit Body control module Engine start/stop switch SS1 (+) line short SS2 (-) line short Harness/connections
Engine does not crank (power supply is normal)	Check the brake pedal position switch Check the body control module	Body control module STS line open/short Brake pedal position switch STOP_SW line open/short
The engine starts, but stalls immediately	Symptom troubleshooting - Refer to: Keyless Access System Symptom Troubleshooting - The engine starts but stalls immediately	No power to PCM No power to body control module Body control module Gauge control module Electric steering lock * Harness/connections
Security indicator blinks	Symptom troubleshooting - Refer to: Keyless Access System Symptom Troubleshooting - Security indicator blinks	Gauge control module Body control module PCM Harness/connections
All the doors will not lock and unlock	Symptom troubleshooting - Refer to: Keyless Access System Symptom Troubleshooting - All the doors will not lock and unlock	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 - Refer to: Keyless Access System Symptom Troubleshooting - The doors will not unlock or lock with the keyless remote, but will unlock or lock with the door outer handles	Keyless remote battery dead Keyless remote Body control module Harness/connections B-CAN communication line
The doors will not unlock or lock with the door outer handle touch sensors, but will unlock or lock with the keyless remote	Symptom troubleshooting - Refer to: Keyless Access System Symptom Troubleshooting - The doors will not unlock or lock with the door outer handle touch sensors, but will unlock or lock with the keyless remote	Door outer handle touch sensor/lock switch Body control module Keyless remote Not registered Harness/connections
*: With electric steering lock