Last Modified: 01-30-2024 6.11:8.1.0 Doc ID: RM100000001G22M
Model Year Start: 2019 Model: RAV4 Prod Date Range: [11/2018 - 08/2020]
Title: THEFT DETERRENT / KEYLESS ENTRY: SMART KEY SYSTEM (for Start Function, Gasoline Model): Immobiliser System does not Operate Properly; 2019 - 2020 MY RAV4 [11/2018 - 08/2020]

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

w/o Occupant Classification System:
w/ Occupant Classification System:

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.
  • 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.

    Click here 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

  • Before replacing the ID code box (immobiliser code ECU)*1, certification ECU (smart key ECU assembly)*2 or ECM, refer to the Registration.

    Click here 2019 MY RAV4 [11/2018 - 10/2019]; THEFT DETERRENT / KEYLESS ENTRY: SMART KEY SYSTEM (for Start Function, Gasoline Model): REGISTRATION 2020 MY RAV4 [10/2019 - 08/2020]; THEFT DETERRENT / KEYLESS ENTRY: SMART KEY SYSTEM (for Start Function, Gasoline Model): REGISTRATION

  • 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".
    • *1: w/o Occupant Classification System
    • *2: w/ Occupant Classification System

PROCEDURE

1.

CHECK VEHICLE TYPE

(a) Check vehicle condition.

w/ Occupant Classification System

GO TO STEP 13

w/o Occupant Classification System

2.

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

Result

Proceed to

DTCs are not output

A

DTCs are output

B

B

GO TO DIAGNOSTIC TROUBLE CODE CHART 2019 MY RAV4 [11/2018 - 10/2019]; THEFT DETERRENT / KEYLESS ENTRY: SMART KEY SYSTEM (for Start Function, Gasoline Model): DIAGNOSTIC TROUBLE CODE CHART 2020 MY RAV4 [10/2019 - 08/2020]; THEFT DETERRENT / KEYLESS ENTRY: SMART KEY SYSTEM (for Start Function, Gasoline Model): DIAGNOSTIC TROUBLE CODE CHART

A

3.

READ VALUE USING TECHSTREAM (IMMOBILISER FUEL CUT STATUS)

(a) Enter the following menus: Powertrain / Engine / Data List.

(b) Read the Data List according to the display on the Techstream.

Powertrain > Engine > Data List

Tester Display

Measurement Item

Range

Normal Condition

Diagnostic Note

Immobiliser Fuel Cut Status

Status of immobiliser fuel cut

OFF or ON

OFF: Fuel cut off

ON: Fuel cut on

-

Powertrain > Engine > Data List

Tester Display

Immobiliser Fuel Cut Status

OK:

OFF is displayed after the engine is started.

OK

GO TO SFI SYSTEM (HOW TO PROCEED WITH TROUBLESHOOTING)

for A25A-FKS (w/ Canister Pump Module):

Click here 2019 - 2020 MY RAV4 [11/2018 - 08/2020]; A25A-FKS (ENGINE CONTROL): SFI SYSTEM (w/ Canister Pump Module): HOW TO PROCEED WITH TROUBLESHOOTING

for A25A-FKS (w/o Canister Pump Module):

Click here 2019 - 2020 MY RAV4 [11/2018 - 08/2020]; A25A-FKS (ENGINE CONTROL): SFI SYSTEM (w/o Canister Pump Module): HOW TO PROCEED WITH TROUBLESHOOTING

NG

4.

CHECK WHETHER ENGINE STARTS

(a) Check that the engine starts within 5 seconds of the engine switch being turned on (IG).

OK:

Engine starts normally.

OK

USE SIMULATION METHOD TO CHECK

NG

5.

CHECK ECM (TERMINAL EFII AND EFIO)

(a) Using an oscilloscope, check the waveform.

*a

Component with harness connected

(ID Code Box (Immobiliser Code ECU))

*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

G57-3 (EFII) - Body ground

Within 3 seconds of engine start or within 3 seconds of engine switch turned on (IG) after cable disconnected and reconnected to battery

2 V/DIV., 500 ms./DIV.

Pulse generation

(See waveform B)

G57-4 (EFIO) - Body ground

Within 3 seconds of engine start or within 3 seconds of engine switch turned on (IG) after cable disconnected and reconnected to 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

GO TO STEP 8

C

REPLACE ECM

D

GO TO STEP 9

A

6.

REGISTER ECU COMMUNICATION ID (ID CODE BOX (IMMOBILISER CODE ECU) - ECM)

(a) Register the ECU communication ID codes.

HINT:

Refer to Registration.

Click here 2019 MY RAV4 [11/2018 - 10/2019]; THEFT DETERRENT / KEYLESS ENTRY: SMART KEY SYSTEM (for Start Function, Gasoline Model): REGISTRATION 2020 MY RAV4 [10/2019 - 08/2020]; THEFT DETERRENT / KEYLESS ENTRY: SMART KEY SYSTEM (for Start Function, Gasoline Model): REGISTRATION

NEXT

7.

CHECK WHETHER ENGINE STARTS

(a) Check that the engine starts.

OK:

Engine starts normally.

OK

END (COMMUNICATION ID WAS NOT REGISTERED)

NG

GO TO STEP 9

8.

CHECK HARNESS AND CONNECTOR (ID CODE BOX (IMMOBILISER CODE ECU) - ECM)

(a) Disconnect the G57 ID code box (immobiliser code ECU) connector.

(b) Disconnect the A24 ECM connector.

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

Standard Resistance:

Tester Connection

Condition

Specified Condition

G57-3 (EFII) - A24-25 (IMO)

Always

Below 1 Ω

G57-4 (EFIO) - A24-26 (IMI)

Always

Below 1 Ω

G57-3 (EFII) or A24-25 (IMO) - Other terminals and body ground

Always

10 kΩ or higher

G57-4 (EFIO) or A24-26 (IMI) - Other terminals and body ground

Always

10 kΩ or higher

OK

GO TO STEP 9

NG

REPAIR OR REPLACE HARNESS OR CONNECTOR

9.

REPLACE ID CODE BOX (IMMOBILISER CODE ECU)

(a) Replace the ID code box (immobiliser code ECU) with a new one.

Click here 2019 MY RAV4 RAV4 HV [11/2018 - 02/2019]; THEFT DETERRENT / KEYLESS ENTRY: ID CODE BOX: REMOVAL 2019 MY RAV4 RAV4 HV [02/2019 - 10/2019]; THEFT DETERRENT / KEYLESS ENTRY: ID CODE BOX: REMOVAL 2020 MY RAV4 RAV4 HV [10/2019 - 08/2020]; THEFT DETERRENT / KEYLESS ENTRY: ID CODE BOX: REMOVAL

NEXT

10.

REGISTER RECOGNITION CODE

(a) Register the recognition codes to the ECUs.

HINT:

Refer to Registration.

Click here 2019 MY RAV4 [11/2018 - 10/2019]; THEFT DETERRENT / KEYLESS ENTRY: SMART KEY SYSTEM (for Start Function, Gasoline Model): REGISTRATION 2020 MY RAV4 [10/2019 - 08/2020]; THEFT DETERRENT / KEYLESS ENTRY: SMART KEY SYSTEM (for Start Function, Gasoline Model): REGISTRATION

NEXT

11.

REGISTER ECU COMMUNICATION ID

(a) Register the ECU communication ID codes.

HINT:

Refer to Registration.

Click here 2019 MY RAV4 [11/2018 - 10/2019]; THEFT DETERRENT / KEYLESS ENTRY: SMART KEY SYSTEM (for Start Function, Gasoline Model): REGISTRATION 2020 MY RAV4 [10/2019 - 08/2020]; THEFT DETERRENT / KEYLESS ENTRY: SMART KEY SYSTEM (for Start Function, Gasoline Model): REGISTRATION

NEXT

12.

CHECK WHETHER ENGINE STARTS

(a) Check that the engine starts.

OK:

Engine starts normally.

OK

END (ID CODE BOX (IMMOBILISER CODE ECU) WAS DEFECTIVE)

NG

GO TO SFI SYSTEM (HOW TO PROCEED WITH TROUBLESHOOTING)

for A25A-FKS (w/ Canister Pump Module):

Click here 2019 - 2020 MY RAV4 [11/2018 - 08/2020]; A25A-FKS (ENGINE CONTROL): SFI SYSTEM (w/ Canister Pump Module): HOW TO PROCEED WITH TROUBLESHOOTING

for A25A-FKS (w/o Canister Pump Module):

Click here 2019 - 2020 MY RAV4 [11/2018 - 08/2020]; A25A-FKS (ENGINE CONTROL): SFI SYSTEM (w/o Canister Pump Module): HOW TO PROCEED WITH TROUBLESHOOTING

13.

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

Result

Proceed to

DTCs are not output

A

DTCs are output

B

B

GO TO DIAGNOSTIC TROUBLE CODE CHART 2019 MY RAV4 [11/2018 - 10/2019]; THEFT DETERRENT / KEYLESS ENTRY: SMART KEY SYSTEM (for Start Function, Gasoline Model): DIAGNOSTIC TROUBLE CODE CHART 2020 MY RAV4 [10/2019 - 08/2020]; THEFT DETERRENT / KEYLESS ENTRY: SMART KEY SYSTEM (for Start Function, Gasoline Model): DIAGNOSTIC TROUBLE CODE CHART

A

14.

READ VALUE USING TECHSTREAM (IMMOBILISER FUEL CUT STATUS)

(a) Enter the following menus: Powertrain / Engine / Data List.

(b) Read the Data List according to the display on the Techstream.

Powertrain > Engine > Data List

Tester Display

Measurement Item

Range

Normal Condition

Diagnostic Note

Immobiliser Fuel Cut Status

Status of immobiliser fuel cut

OFF or ON

OFF: Fuel cut off

ON: Fuel cut oN

 

Powertrain > Engine > Data List

Tester Display

Immobiliser Fuel Cut Status

OK:

OFF is displayed after the engine is started.

OK

GO TO SFI SYSTEM (HOW TO PROCEED WITH TROUBLESHOOTING)

for A25A-FKS (w/ Canister Pump Module):

Click here 2019 - 2020 MY RAV4 [11/2018 - 08/2020]; A25A-FKS (ENGINE CONTROL): SFI SYSTEM (w/ Canister Pump Module): HOW TO PROCEED WITH TROUBLESHOOTING

for A25A-FKS (w/o Canister Pump Module):

Click here 2019 - 2020 MY RAV4 [11/2018 - 08/2020]; A25A-FKS (ENGINE CONTROL): SFI SYSTEM (w/o Canister Pump Module): HOW TO PROCEED WITH TROUBLESHOOTING

NG

15.

CHECK WHETHER ENGINE STARTS

(a) Check that the engine starts within 5 seconds of the engine switch being turned on (IG).

OK:

Engine starts normally.

OK

USE SIMULATION METHOD TO CHECK

NG

16.

CHECK ECM (TERMINAL EFII AND EFIO)

(a) Using an oscilloscope, check the waveform.

*a

Component with harness connected

(Certification ECU (Smart Key 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

A15-3 (EFII) - Body ground

Within 3 seconds of engine start or within 3 seconds of engine switch turned on (IG) after cable disconnected and reconnected to battery

2 V/DIV., 500 ms./DIV.

Pulse generation

(See waveform 2)

A15-4 (EFIO) - Body ground

Within 3 seconds of engine start or within 3 seconds of engine switch turned on (IG) after cable disconnected and reconnected to battery

2 V/DIV., 500 ms./DIV.

Pulse generation

(See waveform 1 and 3)

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

GO TO STEP 19

C

REPLACE ECM

D

GO TO STEP 20

A

17.

REGISTER ECU COMMUNICATION ID (CERTIFICATION ECU (SMART KEY ECU ASSEMBLY) - ECM)

(a) Register the ECU communication ID codes.

HINT:

Refer to Registration.

Click here 2019 MY RAV4 [11/2018 - 10/2019]; THEFT DETERRENT / KEYLESS ENTRY: SMART KEY SYSTEM (for Start Function, Gasoline Model): REGISTRATION 2020 MY RAV4 [10/2019 - 08/2020]; THEFT DETERRENT / KEYLESS ENTRY: SMART KEY SYSTEM (for Start Function, Gasoline Model): REGISTRATION

NEXT

18.

CHECK WHETHER ENGINE STARTS

(a) Check that the engine starts.

OK:

Engine starts normally.

OK

END (COMMUNICATION ID WAS NOT REGISTERED)

NG

GO TO STEP 20

19.

CHECK HARNESS AND CONNECTOR (CERTIFICATION ECU (SMART KEY ECU ASSEMBLY) - ECM)

(a) Disconnect the A15 certification ECU (smart key ECU assembly) connector.

(b) Disconnect the A24 ECM connector.

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

Standard Resistance:

Tester Connection

Condition

Specified Condition

A15-3 (EFII) - A24-25 (IMO)

Always

Below 1 Ω

A15-4 (EFIO) - A24-26 (IMI)

Always

Below 1 Ω

A15-3 (EFII) or A24-25 (IMO) - Other terminals and body ground

Always

10 kΩ or higher

A15-4 (EFIO) or A24-26 (IMI) - Other terminals and body ground

Always

10 kΩ or higher

OK

GO TO STEP 20

NG

REPAIR OR REPLACE HARNESS OR CONNECTOR

20.

REPLACE CERTIFICATION ECU (SMART KEY ECU ASSEMBLY)

(a) Replace the certification ECU (smart key ECU assembly) with a new one.

Click here 2019 MY RAV4 RAV4 HV [11/2018 - 02/2019]; THEFT DETERRENT / KEYLESS ENTRY: CERTIFICATION ECU: REMOVAL 2019 MY RAV4 RAV4 HV [02/2019 - 10/2019]; THEFT DETERRENT / KEYLESS ENTRY: CERTIFICATION ECU: REMOVAL 2020 MY RAV4 RAV4 HV [10/2019 - 08/2020]; THEFT DETERRENT / KEYLESS ENTRY: CERTIFICATION ECU: REMOVAL

NEXT

21.

REGISTER RECOGNITION CODE

(a) Register the recognition codes to the ECUs.

HINT:

Refer to Registration.

Click here 2019 MY RAV4 [11/2018 - 10/2019]; THEFT DETERRENT / KEYLESS ENTRY: SMART KEY SYSTEM (for Start Function, Gasoline Model): REGISTRATION 2020 MY RAV4 [10/2019 - 08/2020]; THEFT DETERRENT / KEYLESS ENTRY: SMART KEY SYSTEM (for Start Function, Gasoline Model): REGISTRATION

NEXT

22.

REGISTER ECU COMMUNICATION ID

(a) Register the ECU communication ID codes.

HINT:

Refer to Registration.

Click here 2019 MY RAV4 [11/2018 - 10/2019]; THEFT DETERRENT / KEYLESS ENTRY: SMART KEY SYSTEM (for Start Function, Gasoline Model): REGISTRATION 2020 MY RAV4 [10/2019 - 08/2020]; THEFT DETERRENT / KEYLESS ENTRY: SMART KEY SYSTEM (for Start Function, Gasoline Model): REGISTRATION

NEXT

23.

CHECK WHETHER ENGINE STARTS

(a) Check that the engine starts.

OK:

Engine starts normally.

OK

END (CERTIFICATION ECU (SMART KEY ECU ASSEMBLY) WAS DEFECTIVE)

NG

GO TO SFI SYSTEM (HOW TO PROCEED WITH TROUBLESHOOTING)

for A25A-FKS (w/ Canister Pump Module):

Click here 2019 - 2020 MY RAV4 [11/2018 - 08/2020]; A25A-FKS (ENGINE CONTROL): SFI SYSTEM (w/ Canister Pump Module): HOW TO PROCEED WITH TROUBLESHOOTING

for A25A-FKS (w/o Canister Pump Module):

Click here 2019 - 2020 MY RAV4 [11/2018 - 08/2020]; A25A-FKS (ENGINE CONTROL): SFI SYSTEM (w/o Canister Pump Module): HOW TO PROCEED WITH TROUBLESHOOTING