Last Modified: 01-30-2024 6.11:8.1.0 Doc ID: RM1000000021IYU
Model Year Start: 2022 Model: RAV4 Prod Date Range: [12/2021 -           ]
Title: THEFT DETERRENT / KEYLESS ENTRY: SMART KEY SYSTEM (for Start Function, Gasoline Model): TERMINALS OF ECU; 2022 - 2024 MY RAV4 [12/2021 -        ]

TERMINALS OF ECU

CHECK CERTIFICATION ECU (SMART KEY ECU ASSEMBLY)

(a) Disconnect the G54, M7 and A15 certification ECU (smart key ECU assembly) connectors.

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

HINT:

Measure the values on the wire harness side with the connector disconnected.

Tester Connection

Wiring Color

Input/Output

Terminal Description

Condition

Specified Condition

Related Data List Item

A15-16 (NE) - Body ground

B - Body ground

Input

Engine speed signal

Always

10 kΩ or higher

Power Source Control

  • Engine Condition

M7-25 (STP1) - Body ground

V - Body ground

Input

Stop light switch signal

Brake pedal depressed → Brake pedal released

9 V or higher → 1 V or less

Power Source Control

  • Stop Light Switch1

G54-4 (+B) - G54-18 (E)

P - W-B

Input

Power source

Always

11 to 14 V

-

G54-15 (CUTB) - Body ground

V - Body ground

Input

Dark current cut pin*

Always

11 to 14 V

-

G54-18 (E) - Body ground

W-B - Body ground

-

Ground

Always

Below 1 Ω

-

G54-21 (SSW2) - Body ground

L - Body ground

Input

SSW2 contact signal

HINT:

Backup for SSW1. Behaves the same way as SSW1.

Engine switch pushed → Engine switch not pushed

Below 15 Ω → 10 kΩ or higher

Power Source Control

  • Start Switch2

G54-23 (SSW1) - Body ground

GR - Body ground

Input

SSW1 contact signal

Engine switch pushed → Engine switch not pushed

Below 15 Ω → 10 kΩ or higher

Power Source Control

  • Start Switch1

G54-19 (SPD) - Body ground

R - Body ground

Input

Vehicle speed signal

Always

30 kΩ or higher

Power Source Control

  • Vehicle Speed Signal
  • *: In order to prevent the vehicle battery from being depleted when the vehicle is shipped long distances, a fuse that cuts unnecessary electrical load while the vehicle is being shipped is installed in the circuit. If the fuse is removed, the circuit becomes open. If the fuse that is between the vehicle battery and terminal CUTB is removed and the circuit is open, the certification ECU (smart key ECU assembly) changes to a certain control mode (example: the transmission of radio waves every 0.25 seconds, which form the detection area, stops).

(c) Reconnect the G54, M7 and A15 certification ECU (smart key ECU assembly) connectors.

(d) Measure the voltage and resistance and check for pulses according to the value(s) in the table below.

Tester Connection

Wiring Color

Input/Output

Terminal Description

Condition

Specified Condition

Related Data List Item

A15-20 (STA) - G54-18 (E)

BR - W-B

Input

When starting the engine, this monitors the voltage sent from terminal STAR to the starter relay to judge whether the engine is "being started".

Engine switch pressed and held with brake pedal depressed (starter on) → Approximately 1 second after engine switch released (starter off)

6 V or higher → 1 V or less

HINT:

While the engine is cranking, the battery voltage may drop to approximately 6 V.

-

A15-9 (STAR) - G54-18 (E)

Y - W-B

Input / Output

Outputs voltage to the starter relay

  • Outputs voltage (12 V) to the starter relay when starting the engine. (Max. 30 seconds. Turns off when an engine speed of 1000 rpm.)

HINT:

When Hi is selected, a start request signal (STAR) will not be output even though a start request signal (STSW) is input.

Engine switch pressed and held with brake pedal depressed (starter on) → Approximately 1 second after engine switch released (starter off)

6 V or higher → 1 V or less

HINT:

While the engine is cranking, the battery voltage may drop to approximately 6 V.

-

A15-16 (NE) - G54-18 (E)

B - W-B

Input

Engine speed signal

Idling (engine warmed up)

Pulse generation

(See waveform 6)

Power Source Control

  • Engine Condition

M7-25 (STP1) - G54-18 (E)

V - W-B

Input

Stop light switch signal

Brake pedal released → Brake pedal depressed

1 V or less → 9 V or higher

Power Source Control

  • Stop Light Switch1

G54-14 (SLP) - G54-18 (E)

G - W-B

Input

Ground

Always

Below 1 Ω

-

G54-13 (LIN) - G54-18 (E)

LG - W-B

Input/Output

LIN communication line

Engine switch on (IG)

Pulse generation

Smart Key

  • Steering Lock Start Cond

G54-22 (P) - G54-18 (E)

R - W-B

Input

P position signal

Shift state park (P) → Shift state not park (P)

9 V or higher → 2.76 V or less

Power Source Control

  • Shift P Signal

G54-21 (SSW2) - G54-18 (E)

L - W-B

Input

SSW2 contact signal

HINT:

Backup for SSW1. Behaves the same way as SSW1.

Engine switch not pushed → Engine switch pushed

9 V or higher → 1 V or less

Power Source Control

  • Start Switch2

G54-23 (SSW1) - G54-18 (E)

GR - W-B

Input

SSW1 contact signal

Engine switch not pushed → Engine switch pushed

9 V or higher → 1 V or less

Power Source Control

  • Start Switch1

G54-16 (ACCD) - G54-18 (E)

G- W-B

Output

ACC signal

Engine switch off → Engine switch on (ACC)

1 V or less → 8.5 V or higher

Power Source Control

  • ACC Relay Monitor

G54-17 (IG1D) - G54-18 (E)

L - W-B

Output

IG1 signal

Engine switch on (ACC) → Engine switch on (IG)

1 V or less → 9 V or higher

Power Source Control

  • IG Relay Monitor (Outside)

G54-19 (SPD) - G54-18 (E)

R - W-B

Input

Vehicle speed signal

Vehicle being driven at approximately 5 km/h (3 mph)

Pulse generation

(See waveform 1)

Power Source Control

  • Vehicle Speed Signal

G54-8 (CLG5) - G54-18 (E)

B - W-B

Output

Output to No. 1 indoor electrical key antenna assembly (front floor)

Procedure:

  1. Engine switch off
  2. Electrical key transmitter sub-assembly not inside vehicle
  3. Within 30 seconds of closing any door

Pulse generation

(See waveform 2)

-

G54-9 (CG5B) - G54-18 (E)

LG - W-B

Output

Output to No. 1 indoor electrical key antenna assembly (front floor) (terminal on opposite side of component from CLG5 output terminal)

Procedure:

  1. Engine switch off
  2. Electrical key transmitter sub-assembly not inside vehicle
  3. Within 30 seconds of closing any door

Pulse generation

(See waveform 2)

-

M7-5 (CLG6) - G54-18 (E)

B - W-B

Output

Output to No. 2 indoor electrical key antenna assembly (rear floor)

Procedure:

  1. Engine switch off
  2. Electrical key transmitter sub-assembly not inside vehicle
  3. Within 30 seconds of closing any door

Pulse generation

(See waveform 2)

-

M7-6 (CG6B) - G54-18 (E)

R - W-B

Output

Output to No. 2 indoor electrical key antenna assembly (rear floor) (terminal on opposite side of component from CLG6 output terminal)

Procedure:

  1. Engine switch off
  2. Electrical key transmitter sub-assembly not inside vehicle
  3. Within 30 seconds of closing any door

Pulse generation

(See waveform 2)

-

M7-11 (CLG7) - G54-18 (E)

R - W-B

Output

Output to No. 1 indoor electrical key antenna assembly (inside luggage compartment)

Procedure:

  1. Engine switch off
  2. Electrical key transmitter sub-assembly not inside vehicle
  3. Within 30 seconds of closing any door

Pulse generation

(See waveform 2)

-

M7-10 (CG7B) - G54-18 (E)

G - W-B

Output

Output to No. 1 indoor electrical key antenna assembly (inside luggage compartment) (terminal on opposite side of component from CLG7 output terminal)

Procedure:

  1. Engine switch off
  2. Electrical key transmitter sub-assembly not inside vehicle
  3. Within 30 seconds of closing any door

Pulse generation

(See waveform 2)

-

G54-5 (TXCT) - G54-11 (AGND)

GR - BE

Output

Signal output to transponder key amplifier

Engine switch off, brake pedal not depressed, 30 seconds or more elapsed after driver door opened and then closed

Below 1 V

Smart Key

  • BCC Malfunction
  • Abnormal Status
  • Different Encrypt Code
  • Different Serial Number
  • Frame Error
  • Response

G54-6 (CODE) - G54-11 (AGND)

B - BE

Input

Signal input from transponder key amplifier

Engine switch off, brake pedal not depressed, 30 seconds or more elapsed after driver door opened and then closed

Below 1 V

G54-7 (VC5) - G54-11 (AGND)

BE - BE

Output

Transponder key amplifier power supply

Engine switch off, brake pedal not depressed, 30 seconds or more elapsed after driver door opened and then closed

Below 1 V

G54-11 (AGND) - Body ground

BE - Body ground

-

Transponder key amplifier ground

Always

Below 1 Ω

G54-5 (TXCT) - G54-11 (AGND)

GR - BE

Output

Signal output to transponder key amplifier

(Code sent from certification ECU (smart key ECU assembly) to transponder key amplifier built into engine switch, and then transmitted by transponder key amplifier antenna as radio waves)

Engine switch off, key not in cabin, within 30 seconds after engine switch pressed

Pulse generation

(See waveform 3)

Smart Key

  • BCC Malfunction
  • Abnormal Status
  • Different Encrypt Code
  • Different Serial Number
  • Frame Error
  • Response

HINT:

If immobiliser key code verification communication is not performed correctly, the malfunction may be indicated by one or more of the Data List items listed above

G54-6 (CODE) - G54-11 (AGND)

B - BE

Input

Signal input from transponder key amplifier

(Radio waves from transponder key amplifier built into engine switch used to detect key information. Key information then sent to certification ECU (smart key ECU assembly))

Engine switch off, engine switch pressed with key held near engine switch

HINT:

Remove the transmitter battery before performing this inspection.

Pulse generation

(See waveform 4)

G54-7 (VC5) - G54-11 (AGND)

BE - BE

Output

Transponder key amplifier power supply

(Power supplied from certification ECU (smart key ECU assembly) when transponder key amplifier built into engine switch activated)

Engine switch off, key not in cabin, within 30 seconds after engine switch pressed

Pulse generation

(See waveform 5)

G54-20 (IND) - G54-18 (E)

W - W-B

Output

Security indicator output

Engine switch off → on (IG)

Pulse generation → Below 2 V

-

(e) Using an oscilloscope, check the waveform of the ECU.

NOTICE:

The oscilloscope waveform shown in the illustration is an example for reference only. Noise, chattering, etc. are not shown.

(1) Waveform 1

Item

Content

Tester Connection

G54-19 (SPD) - G54-18(E)

Tool Setting

5 V/DIV., 20 ms./DIV.

Condition

Vehicle being driven at approximately 5 km/h (3 mph)

HINT:

The wavelength becomes shorter as the vehicle speed increases.

(2) Waveform 2

*a

For 30 seconds after any door closed

*b

After 30 seconds or more have elapsed since any door closed

Item

Content

Tester Connection

G54-8 (CLG5) - G54-18 (E)

G54-9 (CG5B) - G54-18 (E)

M7-5 (CLG6) - G54-18 (E)

M7-6 (CG6B) - G54-18 (E)

M7-11 (CLG7) - G54-18 (E)

M7-10 (CG7B) - G54-18 (E)

Tool Setting

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

Condition

Procedure:

  1. Engine switch off
  2. Electrical key transmitter sub-assembly not inside vehicle
  3. Within 30 seconds of closing any door

(3) Waveform 3

Item

Content

Tester Connection

G54-5 (TXCT) - G54-11 (AGND)

Tool Setting

2 V/DIV., 20 ms./DIV.

Condition

Engine switch off, key not in cabin, within 30 seconds after engine switch pressed

(4) Waveform 4

Item

Content

Tester Connection

G54-6 (CODE) - G54-11 (AGND)

Tool Setting
  • Waveform:

    2 V/DIV., 20 ms./DIV.

  • Waveform (detail):

    2 V/DIV., 100 μs./DIV.

Condition

Engine switch off, engine switch pressed with key held near engine switch

HINT:

Remove the transmitter battery before performing this inspection.

*a

Waveform

*b

Waveform (detail)

(5) Waveform 5

Item

Content

Tester Connection

G54-7 (VC5) - G54-11 (AGND)

Tool Setting

2 V/DIV., 200 ms./DIV.

Condition

Engine switch off, key not in cabin, within 30 seconds after engine switch pressed

(6) Waveform 6

Item

Content

Tester Connection

A15-16 (NE) - G54-18 (E)

Tool Setting

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

Condition

Idling (engine warmed up)

HINT:

The wavelength becomes shorter as the engine speed increases.

CHECK ID CODE BOX (IMMOBILISER CODE ECU)

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

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

HINT:

Measure the values on the wire harness side with the connector disconnected.

Tester Connection

Wiring Color

Input/Output

Terminal Description

Condition

Specified Condition

Related Data List Item

G57-1 (+B) - Body ground

LA-B - Body ground

Input

Power source

Always

11 to 14 V

-

G57-5 (GND) - Body ground

LA - Body ground

-

Ground

Always

Below 1 Ω

(c) Reconnect the G57 ID code box (immobiliser code ECU) connector.

(d) Measure the voltage and check for pulses according to the value(s) in the table below.

Tester Connection

Wiring Color

Input/Output

Terminal Description

Condition

Specified Condition

Related Data List Item

G57-3 (EFII) - G57-5 (GND)

LG - LA

Input

EFI communication input

(Signal input from ECM to ID code box (immobiliser code ECU))

Engine switch off

11 to 14 V

Smart Key

  • EFI Code Receive
  • Engine Start Request

G57-3 (EFII) - G57-5 (GND)

LG - LA

Input

EFI communication input

(Signal input from ECM to ID code box (immobiliser code ECU))

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

Pulse generation

(See waveform 1)

G57-4 (EFIO) - G57-5 (GND)

L - LA

Output

EFI communication output

(Signal output from ID code box (immobiliser code ECU) to ECM)

Engine switch off

Below 1 V

G57-4 (EFIO) - G57-5 (GND)

L - LA

Output

EFI communication output

(Signal output from ID code box (immobiliser code ECU) to ECM)

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

Pulse generation

(See waveform 2)

G57-2 (LIN1) - G57-5 (GND)

GR - LA

Input/Output

LIN communication line

Engine switch on (IG)

Pulse generation

Smart Key

  • Steering Lock Start Cond

(e) Using an oscilloscope, check the waveform of the ECU.

NOTICE:

The waveform shown in the illustration is an example for reference only. Noise, chattering, etc. are not shown.

(1) Waveform 1

*a

Approximately 160 ms

*b

Approximately 270 ms

Item

Content

Tester Connection

G57-3 (EFII) - G57-5 (GND)

Tool Setting

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

Condition

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

(2) Waveform 2

*a

Approximately 160 ms

*b

Approximately 270 ms

Item

Content

Tester Connection

G57-4 (EFIO) - G57-5 (GND)

Tool Setting

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

Condition

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

CHECK ECM

(a) Measure the voltage and resistance and check for pulses according to the value(s) in the table below.

Tester Connection

Wiring Color

Input/Output

Terminal Description

Condition

Specified Condition

Related Data List Item

A24-1 (BATT) - A24-10 (E1)

G - W-B

Input

Power source

Always

11 to 14 V

-

A24-10 (E1) - Body ground

W-B - Body ground

-

Ground

Always

Below 1 Ω

-

A24-25 (IMO) - A24-10 (E1)

P - W-B

Output

EFI communication output

(Signal input from ECM to ID code box (immobiliser code ECU))

Engine switch off

11 to 14 V

Smart Key

  • EFI Code Receive
  • Engine Start Request

A24-25 (IMO) - A24-10 (E1)

P - W-B

Output

EFI communication output

(Signal input from ECM to ID code box (immobiliser code ECU))

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

Pulse generation

(See waveform 1)

A24-26 (IMI) - A24-10 (E1)

R - W-B

Input

EFI communication input

(Signal output from ID code box (immobiliser code ECU) to ECM)

Engine switch off

Below 1 V

A24-26 (IMI) - A24-10 (E1)

R - W-B

Input

EFI communication input

(Signal output from ID code box (immobiliser code ECU) to ECM)

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

Pulse generation

(See waveform 2)

(b) Using an oscilloscope, check the waveform of the ECU.

NOTICE:

The waveform shown in the illustration is an example for reference only. Noise, chattering, etc. are not shown.

(1) Waveform 1

*a

Approximately 160 ms

*b

Approximately 270 ms

Item

Content

Tester Connection

A24-25 (IMO) - A24-10 (E1)

Tool Setting

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

Condition

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

(2) Waveform 2

*a

Approximately 160 ms

*b

Approximately 270 ms

Item

Content

Tester Connection

A24-26 (IMI) - A24-10 (E1)

Tool Setting

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

Condition

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

CHECK ENGINE SWITCH

(a) Measure the voltage and resistance and check for pulses according to the value(s) in the table below.

Tester Connection

Wiring Color

Input/Output

Terminal Description

Condition

Specified Condition

Related Data List Item

G55-6 (AGND) - Body ground

BE - Body ground

-

Transponder key amplifier ground

Always

Below 1 Ω

-

G55-7 (TXCT) - G55-6 (AGND)

GR - BE

Input

Immobiliser communication input

Engine switch off, brake pedal not depressed, 30 seconds or more after driver door opened and then closed

Below 1 V

-

G55-7 (TXCT) - G55-6 (AGND)

GR - BE

Input

Signal input from certification ECU (smart key ECU assembly)

(Code sent from certification ECU (smart key ECU assembly) to transponder key amplifier built into engine switch, and then transmitted by transponder key amplifier antenna as radio waves)

Engine switch off, electrical key transmitter sub-assembly not in cabin, within 30 seconds after engine switch pressed

Pulse generation

(See waveform 1)

Smart Key

  • BCC Malfunction
  • Abnormal Status
  • Different Encrypt Code
  • Different Serial Number
  • Frame Error
  • Response

HINT:

If immobiliser key code verification communication is not performed correctly, the malfunction may be indicated by one or more of the Data List items listed above

G55-8 (CODE) - G55-6 (AGND)

B - BE

Output

Immobiliser communication output

Engine switch off, brake pedal not depressed, 30 seconds or more after driver door opened and then closed

Below 1 V

-

G55-8 (CODE) - G55-6 (AGND)

B - BE

Output

Signal output to certification ECU (smart key ECU assembly)

(Radio waves from transponder key amplifier built into engine switch used to detect key information. Key information then sent to certification ECU (smart key ECU assembly))

Engine switch off, engine switch pressed with electrical key transmitter sub-assembly held near engine switch

HINT:

Remove the transmitter battery before performing this inspection.

Pulse generation

(See waveform 2)

Smart Key

  • BCC Malfunction
  • Abnormal Status
  • Different Encrypt Code
  • Different Serial Number
  • Frame Error
  • Response

HINT:

If immobiliser key code verification communication is not performed correctly, the malfunction may be indicated by one or more of the Data List items listed above

G55-10 (VC5) - G55-6 (AGND)

BE - BE

Input

Transponder key amplifier power supply

Engine switch off, brake pedal not depressed, 30 seconds or more after driver door opened and then closed

Below 1 V

-

G55-10 (VC5) - G55-6 (AGND)

BE - BE

Input

Transponder key amplifier power supply

(Power supplied from certification ECU (smart key ECU assembly) when transponder key amplifier built into engine switch activated)

Engine switch off, electrical key transmitter sub-assembly not in cabin, within 30 seconds after engine switch pressed

Pulse generation

(See waveform 3)

Smart Key

  • BCC Malfunction
  • Abnormal Status
  • Different Encrypt Code
  • Different Serial Number
  • Frame Error
  • Response

HINT:

If immobiliser key code verification communication is not performed correctly, the malfunction may be indicated by one or more of the Data List items listed above

(b) Using an oscilloscope, check the waveform.

NOTICE:

The waveform shown in the illustration is an example for reference only. Noise, chattering, etc. are not shown.

(1) Waveform 1

Item

Content

Tester Connection

G55-7 (TXCT) - G55-6 (AGND)

Tool Setting

2 V/DIV., 20 ms./DIV.

Condition

Engine switch off, electrical key transmitter sub-assembly not in cabin, within 30 seconds after engine switch pressed

(2) Waveform 2

*a

Waveform

*b

Waveform (detail)

Item

Content

Tester Connection

G55-8 (CODE) - G55-6 (AGND)

Tool Setting

Procedure:

  • Waveform

    2 V/DIV., 20 ms./DIV.

  • Waveform (detail)

    2 V/DIV., 100 μs./DIV.

Condition

Engine switch off, engine switch pressed with electrical key transmitter sub-assembly held near engine switch

HINT:

Remove the transmitter battery before performing this inspection.

(3) Waveform 3

Item

Content

Tester Connection

G55-10 (VC5) - G55-6 (AGND)

Tool Setting

2 V/DIV., 200 ms./DIV.

Condition

Engine switch off, electrical key transmitter sub-assembly not in cabin, within 30 seconds after engine switch pressed