Indicator Light Circuit

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05–708

DIAGNOSTICS

–

TOYOTA VEHICLE INTRUSION PROTECTION
SYSTEM

057RY–01

INDICATOR LIGHT CIRCUIT
CIRCUIT DESCRIPTION
When the TVIP system is preparing to be set, this circuit lights up the indicator light. When the system has
been set, it continually turns the indicator light on for 0.2 seconds and turns it off for 1.8 seconds, thus the
indicator light blinks.

WIRING DIAGRAM
S4
Security Indicator

TVIP ECU

IND

GND

25
T3

R–W

2

IND

RH J/B
1

W–B

19
3A

11
3A

W–B
A
J7
J/C

IG

B59175

INSPECTION PROCEDURE
1

CHECK SECURITY INDICATOR LIGHT
(a)
(b)

Security Indicator

B59187

Remove the security indicator.
Check the indicator light, as shown in the illustration and
table.
Standard:
Measuring condition

Operation

Battery positive (+) ⇔ Terminal 2
Battery negative (–) ⇔ Terminal 1

Indicator light comes on

NG

REPLACE SECURITY INDICATOR LIGHT

OK

2004 COROLLA (RM1037U)

Author:

Date:

873

DIAGNOSTICS

–

TOYOTA VEHICLE INTRUSION PROTECTION
SYSTEM

05–709

CHECK WIRE HARNESS (TVIP ECU ⇔ SECURITY INDICATOR)

2

(a)
TVIP ECU
(Wire Harness Side)

(b)

T3

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:
Symbols (Terminal No.)
(TVIP ECU ⇔ Security indicator)

Specified condition

IND (T3–25) ⇔ IND (S4–2)

Continuity

IND (T3–25)
S4

Security Indicator
(Wire Harness Side)

IND

B52239
B59192

B59594

NG

REPAIR OR REPLACE WIRE HARNESS AND
CONNECTOR

OK

CHECK WIRE HARNESS (SECURITY INDICATOR ⇔ BODY GROUND)

3
S4

(a)
(b)

Security Indicator
(Wire Harness Side)

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:

GND
B59192

NG

Symbol (Terminal No.)
(Security indicator ⇔ Body ground)

Specified condition

GND (S4–1) ⇔ Body ground

Continuity

REPAIR OR REPLACE WIRE HARNESS AND
CONNECTOR

OK
CHECK AND REPLACE TVIP ECU (See page 01–30)

2004 COROLLA (RM1037U)

Author:

Date:

874
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