Symptom Troubleshooting Index: Index

NOTE:

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

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 .	Poor connections at the body control module Keyless remote Body control module Electric steering lock*1 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
Cannot select ON mode with the keyless remote touching the engine start/stop switch, but can select ON mode with keyless access	Check the body control module	Body control module is not registered Body control module ESL ID mismatch1 MTR_CONT line power short1 MTR_CONT line open/short1 IGN_TRX line open/short1 Not registered Harness/connections
The mode changes between ACC and ON, but it does not change to OFF (LOCK)	Check the body control module Check the transmission range switch Check the park pin switch	Body control module Transmission range switch Park pin switch ATP-P line open P-PIN_SW line open
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 Check the park pin switch	Body control module Gauge control module PCM B-CAN communication line open/short F-CAN communication line open/short Speed signal line open Park pin switch P-PIN_SW line open
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 body control module Check the brake pedal position switch	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
Immobilizer/security indicator blinks	Symptom troubleshooting Refer to: Keyless Access System Symptom Troubleshooting - Immobilizer/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 sensors*2 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*2	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
1: With electric steering lock 2: With keyless access function