Basic Inspection
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. Narrow down the functional area in question by performing basic inspection to identify which function is malfunctioning. The vehicle security function can operate only when the door lock and power distribution system are operating normally. Therefore, it is easy to identify any factor unique to the vehicle security system by performing the vehicle security operation check after basic inspection.
- CHECK DOOR LOCK OPERATION
Check the door lock for normal operation with the Intelligent Key controller and door request switch.
Successful door lock operation with the Intelligent Key and request SW indicates that the remote keyless entry receiver and inside key antenna required for engine start are functioning normally.
Identify the malfunctioning point by referring to the DOOR & LOCK - WITH INTELLIGENT KEY SYSTEM or DOOR & LOCK - WITHOUT INTELLIGENT KEY SYSTEM if the door cannot be unlocked.
Can the door be locked with the Intelligent Key and door request switch?
YES: GO TO 2
NO: Refer to "SYMPTOM TABLE ".
- CHECK ENGINE STARTING
Check that the engine starts when operating the Intelligent Key.
Does the engine start?
YES: GO TO 3
NO: Refer to "SYMPTOM TABLE ".
- CHECK STEERING LOCK
Does the steering lock when operating door switch after switching the power supply from ON position (or ACC position) to LOCK position?
If door switch is malfunctioning, BCM cannot lock the steering. If BCM does not detect DTC, steering lock unit is normal.
Does steering lock?
YES: GO TO 4
NO: Refer to "DIAGNOSIS PROCEDURE ".
- CHECK IGNITION KNOB SWITCH OPERATION
Press ignition knob to check switch operation.
Does the combination meter display any message?
YES: GO TO 5
NO: Refer to "IGNITION KNOB SWITCH CHECK ".
- CHECK VEHICLE SECURITY SYSTEM
Check the vehicle security system for normal operation.
The vehicle security function can operate only when the door lock and power distribution functions are operating normally.
Therefore, it is easy to identify any factor unique to the vehicle security by performing the vehicle security operation check after this basic inspection.
Refer to "VEHICLE SECURITY OPERATION CHECK ".