| Last Modified: 09-02-2025 | 6.11:8.1.0 | Doc ID: RM100000001G22L |
| Model Year Start: 2019 | Model: RAV4 | Prod Date Range: [11/2018 - 10/2022] |
| Title: THEFT DETERRENT / KEYLESS ENTRY: SMART KEY SYSTEM (for Start Function, Gasoline Model): Security Indicator Light Does not Blink; 2019 - 2022 MY RAV4 [11/2018 - 10/2022] | ||
|
Security Indicator Light Does not Blink |
DESCRIPTION
- The certification ECU (smart key ECU assembly) blinks the security indicator light (combination meter assembly) when the immobiliser is set (engine switch off).
- The certification ECU (smart key ECU assembly) receives the security indicator light signal from the main body ECU (multiplex network body ECU) via CAN communication when the theft deterrent system is in the arming preparation state or alarm sounding state. Then, the certification ECU (smart key ECU assembly) blinks the security indicator light (radio receiver assembly).
WIRING DIAGRAM
CAUTION / NOTICE / HINT
NOTICE:
- When using the Techstream with the engine 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 - 2020 MY RAV4 [11/2018 - 08/2020]; THEFT DETERRENT / KEYLESS ENTRY: SMART KEY SYSTEM (for Start Function, Gasoline Model): HOW TO PROCEED WITH TROUBLESHOOTING](/t3Portal/stylegraphics/info.gif)
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Before replacing the certification ECU (smart key ECU assembly) or main body ECU (multiplex network body ECU), 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".
- When replacing the combination meter assembly, always replace it with a new one. If a combination meter assembly which was installed to another vehicle is used, the information stored in it will not match the information from the vehicle and a DTC may be stored.
PROCEDURE
PROCEDURE
|
1. |
CHECK FOR DTC |
(a) Connect the Techstream to the DLC3.
(b) Turn the engine switch on (IG).
(c) Turn the Techstream on.
(d) Enter the following menus: Body Electrical or Powertrain / Smart Key or Engine / Trouble Codes.
(e) Check for DTCs.
Body Electrical > Smart Key > Trouble Codes
Powertrain > Engine > Trouble Codes
OK:
DTCs are not output.
| NG |
|
GO TO DIAGNOSTIC TROUBLE CODE CHART Click here
|
|
|
2. |
PERFORM ACTIVE TEST USING TECHSTREAM (IMMOBILISER INDICATOR) |
(a) Enter the following menus: Body Electrical / Smart Key / Active Test.
(b) Perform the Active Test according to the display on the Techstream.
Body Electrical > Smart Key > Active Test
|
Tester Display |
Measurement Item |
Control Range |
Diagnostic Note |
|---|---|---|---|
|
Immobiliser Indicator |
Security indicator light |
OFF/ON |
- |
Body Electrical > Smart Key > Active Test
|
Tester Display |
|---|
|
Immobiliser Indicator |
OK:
The security indicator light (combination meter assembly) operates normally.
| NG |
|
|
|
3. |
CHECK SECURITY INDICATOR LIGHT (COMBINATION METER ASSEMBLY) OPERATION |
(a) When the immobiliser is set, check that the security indicator light (combination meter assembly) blinks.*1
OK:
The security indicator light (combination meter assembly) blinks normally.
(b) When the theft deterrent system is in the arming preparation state, check that the security indicator light (combination meter assembly) illuminates.*2
OK:
The security indicator light (combination meter assembly) illuminates normally.
|
Result |
Proceed to |
|---|---|
|
*1 is NG (*2 is OK) |
A |
|
*2 is NG (*1 is OK) |
B |
| A |
|
REPLACE CERTIFICATION ECU (SMART KEY ECU ASSEMBLY) Click here
|
| B |
|
REPLACE MAIN BODY ECU (MULTIPLEX NETWORK BODY ECU) Click here
|
|
4. |
CHECK HARNESS AND CONNECTOR (CERTIFICATION ECU (SMART KEY ECU ASSEMBLY) - SECURITY INDICATOR LIGHT (COMBINATION METER ASSEMBLY)) |
(a) Disconnect the G54 certification ECU (smart key ECU assembly) connector.
(b) Disconnect the G19 combination meter assembly connector.
(c) Measure the resistance according to the value(s) in the table below.
Standard Resistance:
|
Tester Connection |
Condition |
Specified Condition |
|---|---|---|
|
G54-20 (IND) - G19-7 (LP) |
Always |
Below 1 Ω |
|
G54-20 (IND) or G19-7 (LP) - Other terminals and body ground |
Always |
10 kΩ or higher |
| NG |
|
REPAIR OR REPLACE HARNESS OR CONNECTOR |
|
|
5. |
CHECK CERTIFICATION ECU (SMART KEY ECU ASSEMBLY) |
(a) Reconnect the certification ECU (smart key ECU assembly) connector.
(b) Reconnect the G19 combination meter assembly connector.
(c) Using an oscilloscope, check the waveform.
|
*a |
Component with harness connected (Certification ECU (Smart Key ECU Assembly)) |
- |
- |
Measurement Condition:
|
Tester Connection |
Switch Condition |
Specified Condition |
|---|---|---|
|
G54-20 (IND) - Body ground |
Engine switch off → on (IG) |
Pulse generation → Below 2 V |
| OK |
|
REPLACE SECURITY INDICATOR LIGHT (COMBINATION METER ASSEMBLY) |
| NG |
|
REPLACE CERTIFICATION ECU (SMART KEY ECU ASSEMBLY) Click here
|
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