Last Modified: 05-08-2025 6.11:8.1.0 Doc ID: RM100000001G23E
Model Year Start: 2019 Model: RAV4 Prod Date Range: [11/2018 - 10/2022]
Title: THEFT DETERRENT / KEYLESS ENTRY: IMMOBILISER SYSTEM (for Gasoline Model without Smart Key System): Key Cannot be Registered; 2019 - 2022 MY RAV4 [11/2018 - 10/2022]

Key Cannot be Registered

DESCRIPTION

A maximum of 5 key ID codes can be registered.

WIRING DIAGRAM

CAUTION / NOTICE / HINT

NOTICE:

  • Before replacing the transponder key ECU assembly or door control transmitter assembly, refer to the Registration.

    Click here 2019 - 2022 MY RAV4 [11/2018 - 10/2022]; THEFT DETERRENT / KEYLESS ENTRY: IMMOBILISER SYSTEM (for Gasoline Model without Smart Key System): 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".

PROCEDURE

1.

CHECK REGISTRATION MODE

(a) Check that the system enters registration mode.

OK:

System enters registration mode.

NG

GO TO STEP 5

OK

2.

CHECK COMBINATION METER ASSEMBLY (SECURITY INDICATOR LIGHT) OPERATION

(a) In registration mode, insert the door control transmitter assembly into the ignition key cylinder and check the combination meter assembly (security indicator light).

HINT:

If the new key ID code registration fails, code 2-1 will be output through the security light. Trying to re-register an already registered door control transmitter assembly will cause code 2-2 to be output when the door control transmitter assembly is inserted. If the number of registered key ID codes exceeds the maximum limit, code 2-3 will be output through the combination meter assembly (security indicator light). The output details are shown in the following illustration.

*a

Combination Meter Assembly (Security Indicator Light)

*b

Normal (Immobiliser system is operating normally)

*c

Code 2-1

*d

Code 2-2

*e

Code 2-3

-

-

Result

Proceed to

Code 2-1 or Code 2-3 is output

A

Code 2-2 is output

B
B

END (REGISTERED DOOR CONTROL TRANSMITTER ASSEMBLY WAS USED)
A

3.

READ VALUE USING TECHSTREAM (TRANSPONDER M-CODE)

(a) Connect the Techstream to the DLC3.

(b) Turn the ignition switch to ON.

(c) Turn the Techstream on.

(d) Enter the following menus: Body Electrical / Immobiliser / Data List.

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

Body Electrical > Immobiliser > Data List

Tester Display

Measurement Item

Range

Normal Condition

Diagnostic Note

Transponder M-code

Number of registered master keys

Min.: 0, Max.: 15

Number of registered master keys displayed

-

Body Electrical > Immobiliser > Data List

Tester Display

Transponder M-code

Result

Proceed to

5 is displayed for "Transponder M-code"

A

Values are other than above

B
A

MAXIMUM NUMBER OF DOOR CONTROL TRANSMITTER ASSEMBLIES ALREADY REGISTERED
B

4.

KEY REGISTRATION

(a) Refer to the table below to determine if additional door control transmitter assemblies can be registered.

Number of Door Control Transmitter Assemblies Registered

Proceed to

0

New key ID code registration

1 to 4

Additional key ID code registration

(b) Check if an additional door control transmitter assembly can be registered.

OK:

Additional door control transmitter assembly can be registered.

OK

END (DOOR CONTROL TRANSMITTER ASSEMBLY MALFUNCTION)
NG

REPLACE TRANSPONDER KEY ECU ASSEMBLY 2019 MY RAV4 RAV4 HV [11/2018 - 02/2019]; THEFT DETERRENT / KEYLESS ENTRY: TRANSPONDER KEY ECU: REMOVAL 2019 MY RAV4 RAV4 HV [02/2019 - 10/2019]; THEFT DETERRENT / KEYLESS ENTRY: TRANSPONDER KEY ECU: REMOVAL 2020 MY RAV4 RAV4 HV [10/2019 - 08/2020]; THEFT DETERRENT / KEYLESS ENTRY: TRANSPONDER KEY ECU: REMOVAL 2021 MY RAV4 RAV4 HV [08/2020 - 12/2021]; THEFT DETERRENT / KEYLESS ENTRY: TRANSPONDER KEY ECU: REMOVAL 2022 MY RAV4 RAV4 HV [12/2021 - 10/2022]; THEFT DETERRENT / KEYLESS ENTRY: TRANSPONDER KEY ECU: REMOVAL

5.

INSPECT UNLOCK WARNING SWITCH ASSEMBLY

(a) Remove the unlock warning switch assembly.

Click here 2019 - 2025 MY RAV4 RAV4 HV [11/2018 -        ]; DOOR LOCK: UNLOCK WARNING SWITCH: REMOVAL

(b) Inspect the unlock warning switch assembly.

Click here 2019 - 2025 MY RAV4 RAV4 HV [11/2018 -        ]; DOOR LOCK: UNLOCK WARNING SWITCH: INSPECTION

NG

REPLACE UNLOCK WARNING SWITCH ASSEMBLY

OK

6.

CHECK HARNESS AND CONNECTOR (TRANSPONDER KEY ECU ASSEMBLY - UNLOCK WARNING SWITCH ASSEMBLY)

(a) Disconnect the G52 transponder key ECU assembly connector.

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

Standard Resistance:

Tester Connection

Condition

Specified Condition

G29-1 - G52-5 (KSW)

Always

Below 1 Ω

G29-2 - Body ground

Always

Below 1 Ω

G29-1 or G52-5 (KSW) - Other terminals and body ground

Always

10 kΩ or higher
OK

REPLACE TRANSPONDER KEY ECU ASSEMBLY 2019 MY RAV4 RAV4 HV [11/2018 - 02/2019]; THEFT DETERRENT / KEYLESS ENTRY: TRANSPONDER KEY ECU: REMOVAL 2019 MY RAV4 RAV4 HV [02/2019 - 10/2019]; THEFT DETERRENT / KEYLESS ENTRY: TRANSPONDER KEY ECU: REMOVAL 2020 MY RAV4 RAV4 HV [10/2019 - 08/2020]; THEFT DETERRENT / KEYLESS ENTRY: TRANSPONDER KEY ECU: REMOVAL 2021 MY RAV4 RAV4 HV [08/2020 - 12/2021]; THEFT DETERRENT / KEYLESS ENTRY: TRANSPONDER KEY ECU: REMOVAL 2022 MY RAV4 RAV4 HV [12/2021 - 10/2022]; THEFT DETERRENT / KEYLESS ENTRY: TRANSPONDER KEY ECU: REMOVAL

NG

REPAIR OR REPLACE HARNESS OR CONNECTOR