- 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
| Last Modified: 05-13-2024 | 6.11:8.1.0 | Doc ID: RM10000000295BC |
| Model Year Start: 2023 | Model: GR Corolla | Prod Date Range: [11/2022 - ] |
| Title: THEFT DETERRENT / KEYLESS ENTRY: IMMOBILISER SYSTEM (w/o Smart Key System): Security Indicator Light Does not Blink; 2023 - 2025 MY Corolla Corolla Hatchback Corolla HV GR Corolla [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
CAUTION / NOTICE / HINT
NOTICE:
If the transponder key ECU assembly is replaced, refer to Registration.
Click here
![2023 - 2025 MY Corolla Corolla Hatchback Corolla HV GR Corolla [11/2022 - ]; THEFT DETERRENT / KEYLESS ENTRY: IMMOBILISER SYSTEM (w/o Smart Key System): REGISTRATION](/t3Portal/stylegraphics/info.gif)
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 |
Security indicator light (air conditioning control 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 |
Security indicator light (air conditioning control 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 |
|
|
B |
|
C |
|
Security indicator light operation is not normal when performing the "Main Body" and "Immobiliser" Active Test |
D |
| B |
|
| C |
|
| D |
|
|
|
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
Click here
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 |
D |
| A |
|
| B |
|
| C |
|
| D |
|
REPLACE SECURITY INDICATOR LIGHT (AIR CONDITIONING CONTROL 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.
(b) Disconnect the I67 transponder key ECU assembly connector.
(c) Measure the resistance according to the value(s) in the table below.
Standard Resistance:
|
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 |
| OK |
|
| 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.
(b) Disconnect the I85 main body ECU (multiplex network body ECU) connector.
(c) Measure the resistance according to the value(s) in the table below.
Standard Resistance:
|
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 |
| OK |
|
| 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.
(b) Disconnect the I85 main body ECU (multiplex network body ECU) connector.
(c) Measure the resistance according to the value(s) in the table below.
Standard Resistance:
|
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 |
| NG |
|
REPAIR OR REPLACE HARNESS OR CONNECTOR |
|
|
6. |
CHECK HARNESS AND CONNECTOR (SECURITY INDICATOR LIGHT - BODY GROUND) |
(a) Disconnect the I37 security indicator light (air conditioning control assembly) connector.
(b) Measure the resistance according to the value(s) in the table below.
Standard Resistance:
|
Tester Connection |
Condition |
Specified Condition |
|---|---|---|
|
I37-13 (GND) - Body ground |
Always |
Below 1 Ω |
| OK |
|
REPLACE SECURITY INDICATOR LIGHT (AIR CONDITIONING CONTROL ASSEMBLY) |
| NG |
|
REPAIR OR REPLACE HARNESS OR CONNECTOR |
|
|