key LEXUS LS430 2003 Factory Repair Manual

to save time. The DATA LIST can be displayed during the ACTIVE TEST.
a. Connect the hand-held tester (with CAN VIM) to the DLC3.
b. Turn the ignition switch ON.
c. Perform the ACTIVE TEST according to the display on the tester.
Meter ECU:
ACTIVE TEST - METER ECU
CIRCUIT DESCRIPTION
This circuit supplies power to operate the driver door ECU.
WIRING DIAGRAM
ItemTest DetailsDiagnostic Note
KEY REMINDER BUZZERCombination meter warning buzzer OFF/ON-

OK: PROCEED TO NEXT CIRCUIT INSPECTION SHOWN ON PROBLEM SYMPTOMS
TABLE
1.CHECK KEY REMINDER WARNING SYSTEM
a. Check that the key reminder warning buzzer sounds.
1. Close the driver side door, insert the key into the ignition key cylinder and then turn the key
to the LOCK or ACC position.
2. Open the driver side door and check that the buzzer sounds intermittently.
b. Check that the key reminder warning buzzer stops.
1. Check that the buzzer stops sounding if any of the following operations is performed while
the buzzer is sounding:
Close the driver side door (front door courtesy lamp switch is off).
Turn the ignition switch ON.
Pull out the key from the ignition key cylinder.
1.INSPECT UNLOCK WARNING SWITCH ASSY
a. Remove the unlock warning switch.
b. Measure the resistance of the switch.
Standard:
SPECIFIED CONDITION
If the result is not as specified, replace the switch ass
y.
Tester ConnectionSwitch ConditionSpecified Condition
1 -2Not pushed10 kohms or higher
1 -2PushedBelow 1 ohms