Last Modified: 05-13-2024 6.11:8.1.0 Doc ID: RM10000000276HI
Model Year Start: 2023 Model: GR Corolla Prod Date Range: [09/2022 - 11/2022]
Title: THEFT DETERRENT / KEYLESS ENTRY: IMMOBILISER SYSTEM (w/o Smart Key System): Security Indicator Light Does not Blink; 2023 MY Corolla Corolla Hatchback Corolla HV GR Corolla [09/2022 - 11/2022]

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).
  • The main body ECU (multiplex network body ECU) blinks the security indicator light when the theft deterrent system is in the arming preparation state or alarm sounding state.*
  • *: w/ Theft Deterrent System

WIRING DIAGRAM

except TMMMS Made

for TMMMS Made

CAUTION / NOTICE / HINT

NOTICE:

If the transponder key ECU assembly is replaced, refer to Registration.

Click here 2023 MY Corolla Corolla Hatchback Corolla HV GR Corolla [09/2022 - 11/2022]; THEFT DETERRENT / KEYLESS ENTRY: IMMOBILISER SYSTEM (w/o Smart Key System): REGISTRATION

PROCEDURE

1.

PERFORM ACTIVE TEST USING GTS (SECURITY INDICATOR)

(a) Connect the GTS to the DLC3.

(b) Turn the ignition switch to ON.

(c) Turn the GTS on.

(d) Enter the following menus: Body Electrical / Immobiliser or Main Body / 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

except TMMMS Made:

  • Security indicator light (air conditioning control assembly)

for TMMMS Made

  • Security indicator light (combination meter assembly)

ON/OFF

-

Body Electrical > Immobiliser > Active Test

Tester Display

Security Indicator

Body Electrical > Main Body > Active Test

Tester Display

Measurement Item

Control Range

Diagnostic Note

Security Indicator

except TMMMS Made:

  • Security indicator light (air conditioning control assembly)

for TMMMS Made

  • Security indicator light (combination meter assembly)

ON/OFF

w/ Theft Deterrent System

Body Electrical > Main Body > Active Test

Tester Display

Security Indicator

Result

Proceed to

Security indicator light operation is normal when performing the "Main Body" and "Immobiliser" Active Test

A
  • Security indicator light operation is not normal when performing the "Immobiliser" Active Test
  • Security indicator light operation is normal when performing the "Main Body" Active Test

B
  • Security indicator light operation is normal when performing the "Immobiliser" Active Test
  • Security indicator light operation is not normal when performing the "Main Body" Active Test

C

Security indicator light operation is not normal when performing the "Main Body" and "Immobiliser" Active Test

D
B

GO TO STEP 3

C

GO TO STEP 4

D

GO TO STEP 5

A

2.

CHECK SECURITY INDICATOR LIGHT OPERATION

(a) When the immobiliser is set, check that the security indicator light blinks.*1

OK:

The security indicator light blinks normally.

(b) When the theft deterrent system is in the arming preparation state, check that the security indicator light is on.*2

for TMMMS Made: Click here 2023 MY Corolla Corolla Hatchback Corolla HV GR Corolla [09/2022 - 11/2022]; THEFT DETERRENT / KEYLESS ENTRY: THEFT DETERRENT SYSTEM (for TMMMS Made): SYSTEM DESCRIPTION

except TMMMS Made: Click here 2023 MY Corolla Corolla Hatchback Corolla HV GR Corolla [09/2022 - 11/2022]; THEFT DETERRENT / KEYLESS ENTRY: THEFT DETERRENT SYSTEM (except TMMMS Made): SYSTEM DESCRIPTION

OK:

The security indicator light is on.

Result

Proceed to

Both *1 and *2 are OK

A

*1 is NG (*2 is OK)

B

*2 is NG (*1 is OK)

C

Both *1 and *2 are NG (except TMMMS Made)

D

Both *1 and *2 are NG (for TMMMS Made)

E
A

USE SIMULATION METHOD TO CHECK

B

REPLACE TRANSPONDER KEY ECU ASSEMBLY

C

REPLACE MAIN BODY ECU (MULTIPLEX NETWORK BODY ECU)

D

REPLACE SECURITY INDICATOR LIGHT (AIR CONDITIONING CONTROL ASSEMBLY)

E

REPLACE SECURITY INDICATOR LIGHT (COMBINATION METER ASSEMBLY)

3.

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: except TMMMS Made
  • *2: for TMMMS Made

(c) Disconnect the I67 transponder key ECU assembly connector.

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

Standard Resistance:

except TMMMS Made:

Tester Connection

Condition

Specified Condition

I67-8 (IND) - I37-10 (LP)

Always

Below 1 Ω

67-8 (IND) or I37-10 (LP) - Other terminals and body ground

Always

10 kΩ or higher

for TMMMS Made:

Tester Connection

Condition

Specified Condition

I67-8 (IND) - I5-7 (LP)

Always

Below 1 Ω

I67-8 (IND) or I5-7 (LP) - Other terminals and body ground

Always

10 kΩ or higher
OK

REPLACE TRANSPONDER KEY ECU ASSEMBLY

NG

REPAIR OR REPLACE HARNESS OR CONNECTOR

4.

CHECK HARNESS AND CONNECTOR (SECURITY INDICATOR LIGHT - MAIN BODY ECU (MULTIPLEX NETWORK BODY ECU))

(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: except TMMMS Made
  • *2: for TMMMS Made

(c) Disconnect the I85 main body ECU (multiplex network body ECU) connector.

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

Standard Resistance:

except TMMMS Made:

Tester Connection

Condition

Specified Condition

I67-8 (IND) - I37-10 (LP)

Always

Below 1 Ω

I67-8 (IND) or I37-10 (LP) - Other terminals and body ground

Always

10 kΩ or higher

or TMMMS Made:

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
OK

REPLACE MAIN BODY ECU (MULTIPLEX NETWORK BODY ECU)

NG

REPAIR OR REPLACE HARNESS OR CONNECTOR

5.

CHECK HARNESS AND CONNECTOR (SECURITY INDICATOR LIGHT - MAIN BODY ECU (MULTIPLEX NETWORK BODY ECU))

(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: except TMMMS Made
  • *2: for TMMMS Made

(c) Disconnect the I85 main body ECU (multiplex network body ECU) connector.

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

Standard Resistance:

except TMMMS Made:

Tester Connection

Condition

Specified Condition

I67-8 (IND) - I37-10 (LP)

Always

Below 1 Ω

I67-8 (IND) or I37-10 (LP) - Other terminals and body ground

Always

10 kΩ or higher

for TMMMS Made:

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
NG

REPAIR OR REPLACE HARNESS OR CONNECTOR
OK

6.

CHECK HARNESS AND CONNECTOR (SECURITY INDICATOR LIGHT - BODY GROUND)

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

(b) Disconnect the I4 security indicator light (combination meter assembly) connector.*2

  • *1: except TMMMS Made
  • *2: for TMMMS Made

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

Standard Resistance:

except TMMMS Made:

Tester Connection

Condition

Specified Condition

I37-13 (GND) - Body ground

Always

Below 1 Ω

for TMMMS Made:

Tester Connection

Condition

Specified Condition

I4-23 (ES) - Body ground

Always

Below 1 Ω

Result

Proceed to

OK (except TMMMS Made)

A

OK (for TMMMS Made)

B

NG

C
A

REPLACE SECURITY INDICATOR LIGHT (AIR CONDITIONING CONTROL ASSEMBLY)

B

REPLACE SECURITY INDICATOR LIGHT (COMBINATION METER ASSEMBLY)

C

REPAIR OR REPLACE HARNESS OR CONNECTOR