THEFT DETERRENT / KEYLESS ENTRY IMMOBILISER SYSTEM(w/o Smart Entry and Start System) Security Indicator Light Does not Blink

DESCRIPTION

The transponder key ECU assembly blinks the security indicator light when the immobiliser is set (no key is in the ignition key cylinder).

WIRING DIAGRAM

w/ Security Indicator on Air Conditioning Control Assembly

0.771,1.396 1.219,1.625 0.448,0.229 10 false I37 0.771,1.208 1.219,1.438 0.448,0.229 10 false 13 2.802,1.396 3.25,1.625 0.448,0.229 10 false I37 2.792,1.198 3.24,1.427 0.448,0.229 10 false 10 1.104,1.385 1.552,1.615 0.448,0.229 10 false ES 2.458,1.385 2.906,1.615 0.448,0.229 10 false LP 0.802,2.24 3.323,2.677 2.521,0.438 10 false Security Indicator Light (Air Conditioning Control Assembly) 5.469,2.208 5.917,2.438 0.448,0.229 10 false I67 5.479,2.406 6.542,2.813 1.063,0.406 10 false Transponder Key ECU Assembly 5.427,1.281 5.875,1.51 0.448,0.229 10 false IND 5.198,1.281 5.646,1.51 0.448,0.229 10 false 8

w/ Security Indicator on Combination Meter Assembly

0.802,1.385 1.25,1.615 0.448,0.229 10 false I4 0.771,1.188 1.219,1.417 0.448,0.229 10 false 23 2.823,1.385 3.271,1.615 0.448,0.229 10 false I5 2.833,1.198 3.281,1.427 0.448,0.229 10 false 7 1.104,1.385 1.552,1.615 0.448,0.229 10 false ES 2.458,1.385 2.906,1.615 0.448,0.229 10 false LP 0.802,2.24 3.094,2.677 2.292,0.438 10 false Security Indicator Light (Combination Meter Assembly) 5.469,2.208 5.917,2.438 0.448,0.229 10 false I67 5.479,2.406 6.542,2.813 1.063,0.406 10 false Transponder Key ECU Assembly 5.427,1.281 5.875,1.51 0.448,0.229 10 false IND 5.198,1.281 5.646,1.51 0.448,0.229 10 false 8

CAUTION / NOTICE / HINT

NOTICE:: Before replacing the transponder key ECU assembly, refer to Service Bulletin.

PROCEDURE

1.PERFORM ACTIVE TEST USING GTS (SECURITY INDICATOR)

a.

Connect the GTS to the DLC3.

b.

Turn the ignition switch to ON (IG).

c.

Turn the GTS on.

d.

Enter the following menus: Body Electrical / Immobiliser / Active Test.

e.

Perform the Active Test according to the display on the GTS.

Body Electrical > Immobiliser > Active Test

Tester Display	Measurement Item	Control Range	Diagnostic Note
Security Indicator	Security indicator light	ON/OFF	-

Body Electrical > Immobiliser > Active Test

Tester Display
Security Indicator

50004 260 1

OK:: Security indicator light can be turned on and off using the GTS.

Result:

Proceed to
OK
NG

OK

REPLACE TRANSPONDER KEY ECU ASSEMBLY

NG

2.CHECK HARNESS AND CONNECTOR (SECURITY INDICATOR LIGHT - TRANSPONDER KEY ECU ASSEMBLY)

a.

Disconnect the I37 security indicator light (air conditioning control assembly) connector.*1

b.

Disconnect the I5 security indicator light (combination meter assembly) connector.*2

*1: w/ Security Indicator on Air Conditioning Control Assembly

*2: w/ Security Indicator on Combination Meter Assembly

c.

Disconnect the I67 transponder key ECU assembly connector.

d.

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

Standard Resistance:

w/ Security Indicator on Air Conditioning Control Assembly:
Tester Connection	Condition	Specified Condition
I85-7 (IND) - I37-10 (LP)	Always	Below 1 Ω
I85-7 (IND) or I37-10 (LP) - Other terminals and body ground	Always	10 kΩ or higher

w/ Security Indicator on Combination Meter Assembly:
Tester Connection	Condition	Specified Condition
I85-7 (IND) - I5-7 (LP)	Always	Below 1 Ω
I85-7 (IND) or I5-7 (LP) - Other terminals and body ground	Always	10 kΩ or higher

Result:

Proceed to
OK
NG

OK

3.CHECK HARNESS AND CONNECTOR (SECURITY INDICATOR LIGHT (COMBINATION METER ASSEMBLY) - BODY GROUND)

NG

REPAIR OR REPLACE HARNESS OR CONNECTOR

3.CHECK HARNESS AND CONNECTOR (SECURITY INDICATOR LIGHT (COMBINATION METER ASSEMBLY) - BODY GROUND)

a.

Disconnect the I4 security indicator light connector.*

*: w/ Security Indicator on Combination Meter Assembly

b.

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

Standard Resistance:

w/ Security Indicator on Air Conditioning Control Assembly:
Tester Connection	Condition	Specified Condition
I37-13 (ES) - Body ground	Always	Below 1 Ω

w/ Security Indicator on Combination Meter Assembly:
Tester Connection	Condition	Specified Condition
I4-23 (ES) - Body ground	Always	Below 1 Ω

Result:

Proceed to
OK
NG

OK

4.INSPECT TRANSPONDER KEY ECU ASSEMBLY

NG

REPAIR OR REPLACE HARNESS OR CONNECTOR

4.INSPECT TRANSPONDER KEY ECU ASSEMBLY

a.

Connect the I67 transponder key ECU assembly connector.

b.

Connect the I37 security indicator light (air conditioning control assembly) connector.*1

c.

Connect the I4 and I5 security indicator light (combination meter assembly) connectors.*2

*1: w/ Security Indicator on Air Conditioning Control Assembly

*2: w/ Security Indicator on Combination Meter Assembly

d.

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

3.167,0.26 3.583,0.531 0.417,0.271 3.969,2.156 3.385,1.417 false 3.281,0.313 3.74,0.51 0.458,0.198 10 false I67 1.135,0.271 1.448,0.49 0.313,0.219 10 false *a 3.969,2.177 4.427,2.375 0.458,0.198 10 false IND

*a

Component with harness connected
(Transponder Key ECU Assembly)

-

Standard Voltage:

Tester Connection	Condition	Specified Condition
I67-8 (IND) - Body ground	No door control transmitter assembly in ignition key cylinder, or 20 sec. elapsed after turning ignition switch to ACC or off (immobiliser system set)	Pulse generation
I67-8 (IND) - Body ground	Door control transmitter assembly in ignition key cylinder (immobiliser system unset)	Below 1 V

Result:

Result	Proceed to
OK (w/ Security Indicator on Air Conditioning Control Assembly)	A
OK (w/ Security Indicator on Combination Meter Assembly)	B
NG	C

A

REPLACE SECURITY INDICATOR LIGHT (AIR CONDITIONING CONTROL ASSEMBLY)

Click hereVehicle Interior>HEATING / AIR CONDITIONING>AIR CONDITIONING PANEL>REMOVAL202304,999999,_58,_080733,_0393743,RM100000002B1IV,

B

REPLACE SECURITY INDICATOR LIGHT (COMBINATION METER ASSEMBLY)

Click hereVehicle Interior>METER / GAUGE / DISPLAY>COMBINATION METER>REMOVAL202304,999999,_58,_080793,_0393111,RM100000002AUPM,

C

REPLACE TRANSPONDER KEY ECU ASSEMBLY