Inspection Procedure

WARNING: This page is about a different car, the 2007 Lexus ES 350. However, it is still accessible from the selected car via links, so may be relevant.

PERFORM ACTIVE TEST BY INTELLIGENT TESTER

Connect the intelligent tester (with CAN VIM) to the DLC3.
Turn the engine switch on (IG).
Press the intelligent tester main switch on.

Select the item below in the ACTIVE TEST and then check that the indicator operates.

SMART (Certification ECU):

SMART REFERENCE CHART

Item	Test Details	Diagnostic Note
SECURITY INDIC	Security indicator ON/OFF	-

OK:

The security indicator light flashes or goes off correctly when operating it through the intelligent tester.

NG: Go to step 2

OK: PROCEED TO NEXT CIRCUIT INSPECTION SHOWN IN PROBLEM SYMPTOMS TABLE

CHECK SECURITY INDICATOR LIGHT ASSEMBLY

Remove the security indicator light assembly.

Apply battery voltage to the terminals of the security indicator and check the lighting condition.

MEASUREMENT AND SPECIFIED CONDITION REFERENCE CHART

Measurement Condition	Specified Operation
Battery positive (+) - Terminal 2 Battery negative (-) - Terminal 1	Indicator light comes on.

Fig 1: Identifying Security Indicator Light Assembly

Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

NG: REPLACE SECURITY INDICATOR LIGHT ASSEMBLY

OK: Go to Next Step

CHECK HARNESS AND CONNECTOR (CERTIFICATION ECU - SECURITY INDICATOR LIGHT)

Disconnect the E13 ECU connector.

Measure the resistance according to the value(s) in the table below.

Standard resistance

TESTER CONNECTION SPECIFIED CONDITION REFERENCE CHART

Symbol (Tester Connection)	Specified Condition
IND (E13-2) - (G1-2)	Below 1 Ω
IND (E13-2) - Body ground	10 kΩ or higher

Fig 2: Identifying E13 ECU Connector Terminals

NG: REPAIR OR REPLACE HARNESS OR CONNECTOR