PRE-Inspection FOR DIAGNOSTIC

Basic Inspection

The engine start function, door lock function, power distribution system and NATS-IVIS/NMS in the Remote
Keyless Entry 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 systems 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.
1.CHECK DOOR LOCK OPERATION

1. Check the door lock for normal operation with the keyfob. Successful door lock operation with the keyfob indicates that the remote keyless entry receiver is functioning normally.

Identify the malfunctioning point by referring to the Door & Lock if the door cannot be unlocked.
Can the door be locked with the keyfob?
YES >> GO TO 2
NO >> Refer to See: Body and Frame\Locks\Power Locks\Testing and Inspection\Symptom Related Diagnostic Procedures\Door Lock Function Symptoms\Intelligent Key\Sedan With Intelligent Key.
2.CHECK ENGINE STARTING

1. Checks that the engine starts when operating the keyfob inserted into the key slot. Does the engine start?

YES >> GO TO 3
NO >> Refer to See: Symptom Related Diagnostic Procedures\Engine Start Function Symptoms.
3.CHECK STEERING LOCKING

1. 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 See: Body and Frame\Locks\Power Locks\Testing and Inspection\Component Tests and General Diagnostics\Door Switch\Component Function Check\Sedan With Intelligent Key.
4.CHECK POWER SUPPLY INDICATOR SWITCHING

1. Press push-button ignition switch and position indicator will switch from LOCK, ACC to ON gradually when steering is locked. Check that the position indicator is illuminated at different positions of the circuit. Is each position indicator illuminating?

YES >> GO TO 5
NO >> Refer to See: A L L Diagnostic Trouble Codes ( DTC )\Testing and Inspection\B Code Charts\B261A\Security System\Sedan Without Intelligent Key.
5.CHECK VEHICLE SECURITY SYSTEM

1. 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 See: Vehicle Security Operation Check\Sedan Without Intelligent Key.