| Last Modified: 01-30-2024 | 6.11:8.1.0 | Doc ID: RM100000001S0IV |
| Model Year Start: 2021 | Model: RAV4 HV | Prod Date Range: [08/2020 - ] |
| Title: THEFT DETERRENT / KEYLESS ENTRY: SMART KEY SYSTEM (for Start Function, HV Model): Immobiliser System does not Operate Properly; 2021 - 2024 MY RAV4 HV [08/2020 - ] | ||
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Immobiliser System does not Operate Properly |
DESCRIPTION
The immobiliser function compares the ID code that is registered to the certification ECU (smart key ECU assembly) with the ID code of the transponder chip that is embedded in the electrical key transmitter sub-assembly.
WIRING DIAGRAM
CAUTION / NOTICE / HINT
NOTICE:
- When using the Techstream with the power switch off, connect the Techstream to the DLC3 and turn a courtesy light switch on and off at intervals of 1.5 seconds or less until communication between the Techstream and the vehicle begins. Then select the vehicle type under manual mode and enter the following menus: Body Electrical / Smart Key. While using the Techstream, periodically turn a courtesy light switch on and off at intervals of 1.5 seconds or less to maintain communication between the Techstream and the vehicle.
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The smart key system (for Start Function) uses the LIN communication system and CAN communication system. Inspect the communication function by following How to Proceed with Troubleshooting. Troubleshoot the smart key system (for Start Function) after confirming that the communication systems are functioning properly.
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![2019 - 2021 MY RAV4 HV [02/2019 - 12/2021]; THEFT DETERRENT / KEYLESS ENTRY: SMART KEY SYSTEM (for Start Function, HV Model): HOW TO PROCEED WITH TROUBLESHOOTING](/t3Portal/stylegraphics/info.gif)
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Before replacing the ID code box (immobiliser code ECU) or hybrid vehicle control ECU assembly, refer to the Registration.
Click here
- Make sure that no DTCs are output. If any DTCs are output, proceed to the Diagnostic Trouble Code Chart.
- After completing repairs, confirm that the problem does not recur.
- After repair, confirm that no DTCs are output by performing "DTC Output Confirmation Operation".
PROCEDURE
|
1. |
CHECK FOR DTC |
(a) Connect the Techstream to the DLC3.
(b) Turn the power switch on (IG).
(c) Turn the Techstream on.
(d) Enter the following menus: Body Electrical / Smart Key / Trouble Codes.
(e) Check for DTCs.
Body Electrical > Smart Key > Trouble Codes
(f) Enter the following menus: Powertrain / Hybrid Control / 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
|
|
|
2. |
CHECK WHETHER HYBRID CONTROL SYSTEM STARTS |
(a) Check that the hybrid control system starts within 5 seconds of the power switch being turned on (READY).
OK:
Hybrid control system starts normally.
| OK |
|
|
|
3. |
CHECK HYBRID VEHICLE CONTROL ECU ASSEMBLY (TERMINAL IMI AND IMO) |
(a) Using an oscilloscope, check the waveform.
|
*a |
Component with harness connected (Hybrid Vehicle Control ECU Assembly) |
*b |
Approximately 160 ms. |
|
*c |
Approximately 270 ms. |
*d |
Approximately 40 ms. |
|
*e |
Approximately 60 ms. |
*f |
IMO Waveform |
|
*g |
IMI Waveform |
*h |
Waveform A |
|
*i |
Waveform B |
*j |
Waveform C |
|
*k |
Waveform A (detail) |
- |
- |
NOTICE:
The waveform shown in the illustration is an example for reference only. Noise, chattering, etc. are not shown.
Measurement Condition:
|
Tester Connection |
Condition |
Tool Setting |
Specified Condition |
|---|---|---|---|
|
A30-23 (IMO) - Body ground |
Within 3 seconds of hybrid control system start or within 3 seconds of power switch turned on (IG) after cable disconnected and reconnected to auxiliary battery |
2 V/DIV., 500 ms./DIV. |
Pulse generation (See waveform B) |
|
A30-10 (IMI) - Body ground |
Within 3 seconds of hybrid control system start or within 3 seconds of power switch turned on (IG) after cable disconnected and reconnected to auxiliary battery |
2 V/DIV., 500 ms./DIV. |
Pulse generation (See waveform A and C) |
|
Result |
Proceed to |
|---|---|
|
Normal waveform |
A |
|
Waveform A is not output, or has abnormal wavelength or shape |
B |
|
Waveform B is not output, or has abnormal wavelength or shape |
C |
|
Waveform C is not output, or has abnormal wavelength or shape |
D |
| B |
|
| C |
|
REPLACE HYBRID VEHICLE CONTROL ECU ASSEMBLY
|
| D |
|
|
|
4. |
REGISTER ECU COMMUNICATION ID (ID CODE BOX (IMMOBILISER CODE ECU) - HYBRID VEHICLE CONTROL ECU ASSEMBLY) |
(a) Register the ECU communication ID codes.
HINT:
Refer to the Registration.
Click here
|
|
5. |
CHECK WHETHER HYBRID CONTROL SYSTEM STARTS |
(a) Check that the hybrid control system starts.
OK:
Hybrid control system starts normally.
| OK |
|
END (COMMUNICATION ID WAS NOT REGISTERED) |
| NG |
|
|
6. |
CHECK HARNESS AND CONNECTOR (ID CODE BOX (IMMOBILISER CODE ECU) - HYBRID VEHICLE CONTROL ECU ASSEMBLY) |
(a) Disconnect the G57 ID code box (immobiliser code ECU) connector.
(b) Disconnect the A30 hybrid vehicle control ECU assembly connector.
(c) Measure the resistance according to the value(s) in the table below.
Standard Resistance:
|
Tester Connection |
Condition |
Specified Condition |
|---|---|---|
|
G57-3 (EFII) - A30-23 (IMO) |
Always |
Below 1 Ω |
|
G57-4 (EFIO) - A30-10 (IMI) |
Always |
Below 1 Ω |
|
G57-3 (EFII) or A30-23 (IMO) - Other terminals and body ground |
Always |
10 kΩ or higher |
|
G57-4 (EFIO) or A30-10 (IMI) - Other terminals and body ground |
Always |
10 kΩ or higher |
| OK |
|
| NG |
|
REPAIR OR REPLACE HARNESS OR CONNECTOR |
|
7. |
REPLACE ID CODE BOX (IMMOBILISER CODE ECU) |
(a) Replace the ID code box (immobiliser code ECU) with a new one.
Click here
HINT:
Refer to the Registration.
Click here
|
|
8. |
REGISTER RECOGNITION CODE |
(a) Register the recognition codes to the ECUs.
HINT:
Refer to the Registration.
Click here
|
|
9. |
REGISTER ECU COMMUNICATION ID |
(a) Register the ECU communication ID codes.
HINT:
Refer to the Registration.
Click here
|
|
10. |
CHECK WHETHER HYBRID CONTROL SYSTEM STARTS |
(a) Check that the hybrid control system starts.
OK:
Hybrid control system starts normally.
| OK |
|
END (ID CODE BOX (IMMOBILISER CODE ECU) WAS DEFECTIVE) |
| NG |
|
GO TO HYBRID CONTROL SYSTEM for AWD with Nickel Metal Hydride Battery: Click here
for Lithium-ion Battery Click here
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