Check that vehicle is under the condition shown in "Conditions of vehicle" before starting diagnosis, and check each symptom.
NOTE: The engine start function, door lock function, power distribution system, and NATS-IVIS/NVIS in the Intelligent Key system are closely related to each other regarding control. The vehicle security function can operate only when the door lock and power distribution system are operating normally.
Conditions of Vehicle (Operating Conditions)
1.PERFORM WORK SUPPORT
Perform "INSIDE ANT DIAGNOSIS" on Work Support of "INTELLIGENT KEY".
Refer to BCS "INTELLIGENT KEY : CONSULT Function (BCM - INTELLIGENT KEY)".
>> GO TO 2.
2.PERFORM SELF-DIAGNOSIS RESULT
Perform Self-Diagnosis Result of "BCM".
Is DTC detected?
YES >> Refer to BCS "DTC Index".
NO >> GO TO 3.
3.CHECK PUSH-BUTTON IGNITION SWITCH
Check push-button ignition switch.
Refer to PCS "Component Function Check".
Is the operation normal?
YES >> GO TO 4.
NO >> Repair or replace malfunctioning parts.
4.CONFIRM THE OPERATION
Confirm the operation again.
Is the inspection normal?
YES >> Check intermittent incident. Refer to GI "Intermittent Incident".
NO >> GO TO 1.
REMOVAL AND INSTALLATION
BCM (BODY CONTROL MODULE)
Removal and Installation
For removal and installation of the BCM (Body Control Module), refer to BCS "Removal and Installation" (WITH INTELLIGENT KEY SYSTEM) or BCS "Removal and Installation" (WITHOUT INTELLIGENT KEY SYSTEM).

Removal and Installation REMOVAL 1. Remove NATS antenna amp. Refer to SEC "Removal and Installation". 2. Release the push-button ignition switch pawls and remove the push-button igniti ...
Inspection and adjustment
ADDITIONAL SERVICE WHEN REPLACING
CONTROL UNIT
ADDITIONAL SERVICE WHEN REPLACING
CONTROL UNIT : Special Repair Requirement
Refer to the CONSULT Immobilizer mode and follow the on-screen instructions.
ECM RE-COMMUNICATING FUNCTION
ECM RE-COMMUNICATING FUNCTION : Description
Performing follow ...
Diagnosis and repair work flow
Work Flow
OVERALL SEQUENCE
DETAILED FLOW
1. OBTAIN INFORMATION ABOUT SYMPTOM
Interview the customer to obtain as much information as possible about the
conditions and environment under
which the malfunction occurred.
>> GO TO 2
2. REPRODUCE THE MALFUNCTION INFORMATION
Check the ...