| Last Modified: 07-31-2024 | 6.11:8.1.0 | Doc ID: RM10000000294Z1 |
| Model Year Start: 2023 | Model: GR Corolla | Prod Date Range: [09/2022 - ] |
| Title: THEFT DETERRENT / KEYLESS ENTRY: IMMOBILISER SYSTEM (w/o Smart Key System): Power Source Mode does not Change to ON (READY); 2023 - 2025 MY Corolla Corolla Hatchback Corolla HV GR Corolla [09/2022 - ] | ||
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Power Source Mode does not Change to ON (READY) |
DESCRIPTION
If the key ID codes of the door control transmitter assembly and transponder key ECU assembly match, the immobiliser system is unset and the hybrid control system start permission signal is sent to the hybrid vehicle control ECU. When the ID codes of the transponder key ECU assembly and hybrid vehicle control ECU match, the hybrid control system starts.
WIRING DIAGRAM
CAUTION / NOTICE / HINT
NOTICE:
If the transponder key ECU assembly or hybrid vehicle control ECU is replaced, refer to Registration.
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![2023 - 2025 MY Corolla Corolla Hatchback Corolla HV GR Corolla [09/2022 - ]; THEFT DETERRENT / KEYLESS ENTRY: IMMOBILISER SYSTEM (w/o Smart Key System): PRECAUTION](/t3Portal/stylegraphics/info.gif)
PROCEDURE
|
1. |
CLEAR DTC |
(a) Clear the DTCs.
Body Electrical > Immobiliser > Clear DTCs
Powertrain > Hybrid Control > Clear DTCs
|
|
2. |
CHECK FOR DTC |
(a) Check for DTCs.
Body Electrical > Immobiliser > Trouble Codes
Powertrain > Hybrid Control > Trouble Codes
|
Result |
Proceed to |
|---|---|
|
DTCs are not output |
A |
|
DTCs are output |
B |
| B |
|
GO TO DIAGNOSTIC TROUBLE CODE CHART
|
|
|
3. |
READ VALUE USING GTS (PERMIT START BY IMMOBILISER) |
(a) Read the Data List according to the display on the GTS.
Powertrain > Hybrid Control > Data List
|
Tester Display |
Measurement Item |
Range |
Normal Condition |
Diagnostic Note |
|---|---|---|---|---|
|
Permit Start by Immobiliser |
Status of starting permission by immobiliser (immobiliser to hybrid vehicle control ECU) |
No Judgment, OK or NG |
- |
- |
Powertrain > Hybrid Control > Data List
|
Tester Display |
|---|
|
Permit Start by Immobiliser |
OK:
OK is displayed after the hybrid control system is started.
| OK |
|
|
|
4. |
CHECK HYBRID CONTROL SYSTEM STARTS |
(a) Using a registered door control transmitter assembly, turn the ignition switch to ON.
(b) Check that the hybrid control system can be started 5 seconds after the ignition switch was turned to ON.
OK:
Hybrid control system starts normally.
| OK |
|
|
|
5. |
INSPECT HYBRID VEHICLE CONTROL ECU (TERMINAL IMI) |
(a) Using an oscilloscope, check the waveform.
|
*a |
Component with harness connected (Hybrid Vehicle Control ECU) |
*b |
Waveform |
|
*c |
Waveform (detail) |
*d |
Approximately 40 ms. |
|
*e |
Approximately 60 ms. |
- |
- |
OK
|
Tester Connection |
Condition |
Tool Setting |
Specified Condition |
|---|---|---|---|
|
I3-53 (IMI) - Body ground |
Within 3 seconds of starter operation and initial combustion, or within 3 seconds of ignition switch first being turned to ON after cable disconnected and reconnected to negative (-) auxiliary battery terminal |
2 V/DIV., 500 ms./DIV. |
Pulse generation (See waveform) |
|
Result |
Proceed to |
|---|---|
|
Normal waveform |
A |
|
Waveform not output, or has abnormal wavelength or shape |
B |
| B |
|
|
|
6. |
INSPECT HYBRID VEHICLE CONTROL ECU (TERMINAL IMO) |
(a) Using an oscilloscope, check the waveform.
|
*a |
Component with harness connected (Hybrid Vehicle Control ECU) |
*b |
Waveform |
|
*c |
Approximately 160 ms. |
*d |
Approximately 270 ms. |
OK
|
Tester Connection |
Condition |
Tool Setting |
Specified Condition |
|---|---|---|---|
|
I3-39 (IMO) - Body ground |
Within 3 seconds of starter operation and initial combustion, or within 3 seconds of ignition switch first being turned to ON after cable disconnected and reconnected to negative (-) auxiliary battery terminal |
2 V/DIV., 500 ms./DIV. |
Pulse generation (See waveform) |
|
Result |
Proceed to |
|---|---|
|
Normal waveform |
A |
|
Waveform not output, or has abnormal wavelength or shape |
B |
| B |
|
|
|
7. |
INSPECT HYBRID VEHICLE CONTROL ECU (TERMINAL IMI) |
(a) Using an oscilloscope, check the waveform.
|
*a |
Component with harness connected (Hybrid Vehicle Control ECU) |
*b |
Waveform |
|
*c |
Approximately 160 ms. |
*d |
Approximately 270 ms. |
OK
|
Tester Connection |
Condition |
Tool Setting |
Specified Condition |
|---|---|---|---|
|
I3-53 (IMI) - Body ground |
Within 3 seconds of starter operation and initial combustion, or within 3 seconds of ignition switch first being turned to ON after cable disconnected and reconnected to negative (-) auxiliary battery terminal |
2 V/DIV., 500 ms./DIV. |
Pulse generation (See waveform) |
|
Result |
Proceed to |
|---|---|
|
Normal waveform |
A |
|
Waveform not output, or has abnormal wavelength or shape |
B |
| B |
|
REPLACE TRANSPONDER KEY ECU ASSEMBLY
|
|
|
8. |
REGISTER ECU COMMUNICATION ID |
(a) Register the communication IDs of the transponder key ECU assembly and hybrid vehicle control ECU.
HINT:
Click here
|
|
9. |
CHECK HYBRID CONTROL SYSTEM STARTS |
(a) Using a registered door control transmitter assembly, turn the ignition switch to ON.
(b) Check that the hybrid control system can be started 5 seconds after the ignition switch was turned to ON.
OK:
Hybrid control system starts normally.
| OK |
|
END (REGISTERED COMMUNICATION ID WAS DEFECTIVE) |
| NG |
|
REPLACE TRANSPONDER KEY ECU ASSEMBLY
|
|
10. |
CHECK HARNESS AND CONNECTOR (TRANSPONDER KEY ECU ASSEMBLY - HYBRID VEHICLE CONTROL ECU) |
(a) Disconnect the I67 transponder key ECU assembly connector.
(b) Disconnect the I3 hybrid vehicle control ECU connector.
(c) Measure the resistance according to the value(s) in the table below.
Standard Resistance:
|
Tester Connection |
Condition |
Specified Condition |
|---|---|---|
|
I67-11 (EFIO) - I3-53 (IMI) |
Always |
Below 1 Ω |
|
I67-11 (EFIO) or I3-53 (IMI) - Other terminals and body ground |
Always |
10 kΩ or higher |
| OK |
|
REPLACE TRANSPONDER KEY ECU ASSEMBLY
|
| NG |
|
REPAIR OR REPLACE HARNESS OR CONNECTOR |
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