Inspection Procedure

WARNING: This page is about a different car, the 2004 Toyota Corolla. However, it is still accessible from the selected car via links, so may be relevant.

CHECK SECURITY INDICATOR LIGHT

Remove the security indicator.

Check the indicator light, as shown in the illustration and table.

Standard:

CONDITION OPERATION REFERENCE

Measuring condition	Operation
Battery positive (+) <=> Terminal 2	Indicator light comes on
Battery negative (-) <=> Terminal 1	Indicator light comes on

Fig 1: Identifying Security Indicator Light

Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

NG: REPLACE SECURITY INDICATOR LIGHT
OK: GO TO NEXT STEP.

CHECK WIRE HARNESS (TVIP ECU <=> SECURITY INDICATOR)

Disconnect the TVIP ECU and security indicator connectors.

Check the continuity between the terminals of the TVIP ECU connector and security indicator connector, as shown in the illustration and table.

Standard:

CONTINUITY SPECIFICATION

Symbols (Terminal No.) (TVIP ECU <=> Security indicator)	Specified condition
IND (T3-25) <=> IND (S4-2)	Continuity

Fig 2: Identifying Wire Harness (TVIP ECU - Security Indicator)

Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

NG: REPAIR OR REPLACE WIRE HARNESS AND CONNECTOR
OK: GO TO NEXT STEP.

CHECK WIRE HARNESS (SECURITY INDICATOR <=> BODY GROUND)

Disconnect the security indicator connector.

Check the continuity between the terminal of the security indicator connector and body ground, as shown in the illustration and table.

Standard:

CONTINUITY SPECIFICATION

Symbol (Terminal No.) (Security indicator <=> Body ground)	Specified condition
GND (S4-1) <=> Body ground	Continuity

Fig 3: Identifying Wire Harness (Security Indicator - Body Ground)

NG: REPAIR OR REPLACE WIRE HARNESS AND CONNECTOR
OK: CHECK AND REPLACE TVIP ECU (See ELECTRONIC CIRCUIT INSPECTION PROCEDURE )