THEFT DETERRENT / KEYLESS ENTRY: SMART KEY SYSTEM (for Start Function, Gasoline Model): Engine does not Start; 2022 - 2024 MY RAV4 [12/2021

Last Modified: 01-30-2024	6.11:8.1.0	Doc ID: RM1000000021J4F
Model Year Start: 2022	Model: RAV4	Prod Date Range: [12/2021 - ]
Title: THEFT DETERRENT / KEYLESS ENTRY: SMART KEY SYSTEM (for Start Function, Gasoline Model): Engine does not Start; 2022 - 2024 MY RAV4 [12/2021 - ]

Engine does not Start

DESCRIPTION

When the electrical key transmitter sub-assembly is in the cabin and the engine switch is pressed, the certification ECU (smart key ECU assembly) receives a signal and changes the power source mode. Additionally, when the shift state is park (P) and the brake pedal is depressed, the engine can be started by pressing the engine switch. If the steering is unlocked, the engine can also be started by pressing the engine switch with the shift state park (P) and the brake pedal depressed.

Related Data List and Active Test Items

Problem Symptom	Data List and Active Test
Engine does not Start	Power Source Control Stop Light Switch1 Steering Unlock Switch Shift P Signal Pulse IG Relay Monitor (Inside) IG Relay Monitor (Outside) Latch Circuit Starter Request Signal Power Supply Condition Smart Key Immobiliser Engine Start Request S Code Check L Code Check Starting Control Starter SW Shift Position Status Ignition

WIRING DIAGRAM

w/ Stop and Start System:

w/o Stop and Start 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.
If the smart key system (for Start Function) has been canceled, enable the system before performing troubleshooting.
Click here
Inspect the fuses of circuits related to this system before performing the following procedure.
Before replacing the certification ECU (smart key ECU assembly) or an electrical key transmitter sub-assembly, refer to the Registration.
Click here
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 disconnecting the cable from the negative (-) battery terminal while performing repairs, some systems need to be initialized after the cable is reconnected.
Click here

PROCEDURE

1.	CHECK ENGINE SWITCH CONDITION

(a) Get into the vehicle while carrying an electrical key transmitter sub-assembly.

(b) Move the shift state park (P).

Result	Proceed to
Power source mode changes: Off → on (ACC) → on (IG) → off	A
Power source mode does not change to on (ACC) or on (IG)	B
Power source mode changes to on (IG) but not to on (ACC)	C
Power source mode changes to on (ACC) but not to on (IG)	D

GO TO SMART KEY SYSTEM (for Start Function) (Power Source Mode does not Change to ON (IG and ACC))

GO TO SMART KEY SYSTEM (for Start Function) (Power Source Mode does not Change to ON (ACC))

GO TO SMART KEY SYSTEM (for Start Function) (Power Source Mode does not Change to ON (IG))

2.	READ VALUE USING TECHSTREAM (STOP LIGHT SWITCH1)

(a) Connect the Techstream to the DLC3.

(b) Turn the engine switch on (IG).

(d) Enter the following menus: Body Electrical / Power Source Control / Data List.

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

Body Electrical > Power Source Control > Data List

Tester Display

Measurement Item

Range

Normal Condition

Diagnostic Note

Stop Light Switch1

State of brake pedal

OFF or ON

OFF: Brake pedal released

ON: Brake pedal depressed

Use this item to determine if the stop light switch assembly is malfunctioning.
The engine cannot be started when this item is OFF.
If the stop light switch assembly is malfunctioning, the engine can be started by pressing and holding the engine switch for a certain period of time.

Body Electrical > Power Source Control > Data List

Tester Display
Stop Light Switch1

OK:

The Techstream display changes correctly in response to the brake pedal operation.

GO TO STEP 31

3.	READ VALUE USING TECHSTREAM (SHIFT P SIGNAL)

(a) Enter the following menus: Body Electrical / Power Source Control / Data List.

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

Body Electrical > Power Source Control > Data List

Tester Display

Measurement Item

Range

Normal Condition

Diagnostic Note

Shift P Signal

State of brake pedal

ON or OFF

ON: Shift state park (P)

OFF: Shift state not park (P)

Use this item to determine if the shift position switch is malfunctioning.
The engine cannot be started when this item is OFF.

Body Electrical > Power Source Control > Data List

Tester Display
Shift P Signal

OK:

The Techstream display changes correctly in response to the shift state.

GO TO STEP 28

4.	READ VALUE USING TECHSTREAM (NEUTRAL SWITH CLUTCH SW, SHIFT POSITION P OR N)

(a) Enter the following menus: Body Electrical / Power Source Control / Data List.

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

Body Electrical > Power Source Control > Data List

Tester Display

Measurement Item

Range

Normal Condition

Diagnostic Note

Neutral SW/ Clutch SW

Shift position (P, N)

ON or OFF

ON: Shift state park (P) or (N)

OFF: Shift state not park (P) or (N)

Use this item to determine whether the park/neutral position switch assembly is malfunctioning.
When the engine cannot be started due to a park/neutral position switch assembly malfunction, OFF is displayed.

Body Electrical > Power Source Control > Data List

Tester Display
Neutral SW/ Clutch SW

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

Body Electrical > Starting Control > Data List

Tester Display

Measurement Item

Range

Normal Condition

Diagnostic Note

Shift Position P or N

Park/Neutral position switch status

OFF or ON

OFF: Shift state not park (P) or (N)

ON: Shift state park (P) or (N)

When OFF is displayed, the engine will not crank.

Body Electrical > Starting Control > Data List

Tester Display
Shift Position P or N

OK:

The Techstream display changes correctly in response to the shift state.

GO TO STEP 20

5.	READ VALUE USING TECHSTREAM (STARTER REQUEST SIGNAL)

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

Body Electrical > Power Source Control > Data List

Tester Display

Measurement Item

Range

Normal Condition

Diagnostic Note

Starter Request Signal

Engine start request signal status

OFF or ON

OFF: The engine switch is not pressed

ON: With the shift state park (P) and the brake pedal depressed, the engine switch is pressed and held

When the engine cannot be started due to a start request signal malfunction, OFF is displayed.
When the engine switch is pressed, the duration of time that ON is displayed will be extremely short. As such, the engine switch needs to be pressed and held for a certain period of time.

Body Electrical > Power Source Control > Data List

Tester Display
Starter Request Signal

NOTICE:

Check that the key indicator display is displayed on the multi-information display in the combination meter assembly, and then press the engine switch.

OK:

The Techstream display changes correctly in response to the engine switch operation.

GO TO STEP 19

6.	READ VALUE USING TECHSTREAM (STARTER SW)

(a) Get into the vehicle while carrying an electrical key transmitter sub-assembly.

(b) Shift state park (P).

(d) Read the Data List while pressing the engine switch with the brake pedal depressed according to the display on the Techstream.

Body Electrical > Starting Control > Data List

Tester Display

Measurement Item

Range

Normal Condition

Diagnostic Note

Starter SW

Starter operation request

OFF or ON

OFF: Starter operation not requested

ON: Starter operation requested

When OFF is displayed, the engine will not crank.

Body Electrical > Starting Control > Data List

Tester Display
Starter SW

OK:

The Techstream display changes.

REPLACE CERTIFICATION ECU (SMART KEY ECU ASSEMBLY)

7.	CHECK HARNESS AND CONNECTOR (ST NO. 1 RELAY - POWER SUPPLY)

(a) Remove the ST NO. 1 relay.

*a	No. 1 Engine Room Relay Block (ST No. 1 Relay Installation Terminal)

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

Standard Voltage:

Tester Connection	Condition	Specified Condition
ST NO. 1 relay installation terminal 5 - Body ground	Always	11 to 14 V

REPAIR OR REPLACE HARNESS OR CONNECTOR

8.	INSPECT ST NO. 1 RELAY

(a) Remove the ST NO. 1 relay.

(b) Inspect the ST NO. 1 relay.

Click here

OK (w/o Stop and Start System)

GO TO STEP 17

REPLACE ST NO. 1 RELAY

OK (w/ Stop and Start System)

9.	CHECK HARNESS AND CONNECTOR (ST NO. 1 RELAY - STARTER ASSEMBLY)

(a) Disconnect the C43 starter assembly connector.

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

Standard Resistance:

Tester Connection	Condition	Specified Condition
ST NO. 1 relay installation terminal 3 - C43-2 (SL1)	Always	Below 1 Ω
ST NO. 1 relay installation terminal 3 or C43-2 (SL1) - Other terminals and body ground	Always	10 kΩ or higher

REPAIR OR REPLACE HARNESS OR CONNECTOR

10.	CHECK HARNESS AND CONNECTOR (ST NO. 2 RELAY - BODY GROUND)

(a) Remove the ST NO. 2 relay.

*a	No. 2 Engine Room Relay Block (ST No. 2 Relay Installation Terminal)

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

Standard Voltage:

Tester Connection	Condition	Specified Condition
ST NO. 2 relay installation terminal 2 - Body ground	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.

GO TO STEP 15

11.	CHECK HARNESS AND CONNECTOR (ST NO. 2 RELAY - POWER SUPPLY AND BODY GROUND)

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

Standard Resistance:

Tester Connection	Condition	Specified Condition
ST NO. 2 relay installation terminal 1 - Body ground	Always	Below 1 Ω

*a	No. 2 Engine Room Relay Block (ST No. 2 Relay Installation Terminal)

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

Standard Voltage:

Tester Connection	Condition	Specified Condition
ST NO. 2 relay installation terminal 5 - Body ground	Always	11 to 14 V

REPAIR OR REPLACE HARNESS OR CONNECTOR

12.	INSPECT ST NO. 2 RELAY

(a) Remove the ST NO. 2 relay.

(b) Inspect the ST NO. 2 relay.

Click here

REPLACE ST NO. 2 RELAY

13.	CHECK HARNESS AND CONNECTOR (ST NO. 2 RELAY - STARTER ASSEMBLY)

(a) Disconnect the C43 starter assembly connectors.

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

Standard Resistance:

Tester Connection	Condition	Specified Condition
ST NO. 2 relay installation terminal 3 - C43-1 (SL2)	Always	Below 1 Ω
ST NO. 2 relay installation terminal 3 or C43-1 (SL2) - Other terminals and body ground	Always	10 kΩ or higher

REPAIR OR REPLACE HARNESS OR CONNECTOR

14.	CHECK HARNESS AND CONNECTOR (STARTER ASSEMBLY - POWER SUPPLY)

(a) Disconnect the starter assembly connector.

*a	Front veiw of wire harness connector (to Starter Assembly)

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

Standard Voltage:

Tester Connection	Condition	Specified Condition
D1-1 (B) - Body ground	Always	11 to 14 V

REPLACE STARTER ASSEMBLY

REPAIR OR REPLACE HARNESS OR CONNECTOR

15.	CHECK HARNESS AND CONNECTOR (ST NO. 2 RELAY - ENGINE STOP AND START ECU)

(a) Disconnect the A34 engine stop and start ECU connector.

(b) Disconnect the A24 ECM connector.

Standard Resistance:

Tester Connection	Condition	Specified Condition
ST NO. 2 relay installation terminal 2 - A34-23 (STA2)	Always	Below 1 Ω
ST NO. 2 relay installation terminal 2 - A24-30 (STA)	Always	Below 1 Ω
ST NO. 2 relay installation terminal 2 or A34-23 (STA2) - Other terminals and body ground	Always	10 kΩ or higher
ST NO. 2 relay installation terminal 2 or A24-30 (STA) - Other terminals and body ground	Always	10 kΩ or higher

(d) Connect the A34 engine stop and start ECU connector.

REPAIR OR REPLACE HARNESS OR CONNECTOR

16.	CHECK ENGINE STOP AND START ECU (TERMINAL STA2)

(a) Install the ST NO. 2 relay.

Component without harness connected

(Engine Stop and Start ECU)

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

Standard Voltage:

Tester Connection	Condition	Specified Condition
A34-23 (STA2) - Body ground	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.

REPLACE ECM

REPLACE ENGINE STOP AND START ECU

17.	CHECK HARNESS AND CONNECTOR (ST NO. 1 RELAY - STARTER ASSEMBLY)

(a) Disconnect the C42 starter assembly connector.

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

Standard Resistance:

Tester Connection	Condition	Specified Condition
ST NO. 1 relay installation terminal 3 - C42-1 (ST)	Always	Below 1 Ω
ST NO. 1 relay installation terminal 3 or C42-1 (ST) - Other terminals and body ground	Always	10 kΩ or higher

REPAIR OR REPLACE HARNESS OR CONNECTOR

18.	CHECK HARNESS AND CONNECTOR (STARTER ASSEMBLY - POWER SUPPLY)

(a) Disconnect the starter assembly connector.

*a	Front veiw of wire harness connector (to Starter Assembly)

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

Standard Voltage:

Tester Connection	Condition	Specified Condition
D2-1 (B) - Body ground	Always	11 to 14 V

REPLACE STARTER ASSEMBLY

w/o Stop And Start System:

Click here

w/ Stop And Start System:

Click here

REPAIR OR REPLACE HARNESS OR CONNECTOR

19.	CHECK SECURITY INDICATOR LIGHT (IMMOBILISER FUNCTION UNSET)

(a) Get into the vehicle while carrying an electrical key transmitter sub-assembly.

(b) Shift state park (P).

(c) Press the engine switch with the brake pedal released and check that the security indicator light changes from blinking to off at the same time that the power source mode changes to on (ACC).

OK:

The security indicator light changes from blinking to off at the same time that the power source mode changes to on (ACC).

HINT:

The immobiliser function can be determined to be operating correctly if the security indicator light changes from blinking to off at the same time that the power source mode changes to on (ACC).

REPLACE CERTIFICATION ECU (SMART KEY ECU ASSEMBLY)

GO TO SMART KEY SYSTEM (for Start Function) (Immobiliser System does not Operate Properly)

20.	READ VALUE USING TECHSTREAM (NEUTRAL SWITH CLUTCH SW, SHIFT POSITION P OR N)

(a) Disconnect the A24 ECM connector.

(b) Enter the following menus: Body Electrical / Power Source Control / Data List.

Body Electrical > Power Source Control > Data List

Tester Display

Measurement Item

Range

Normal Condition

Diagnostic Note

Neutral SW/ Clutch SW

Shift position (P, N)

ON or OFF

ON: Shift state park (P) or (N)

OFF: Shift state not park (P) or (N)

Use this item to determine whether the park/neutral position switch assembly is malfunctioning.
When the engine cannot be started due to a park/neutral position switch assembly malfunction, OFF is displayed.

Body Electrical > Power Source Control > Data List

Tester Display
Neutral SW/ Clutch SW

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

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

Body Electrical > Starting Control > Data List

Tester Display

Measurement Item

Range

Normal Condition

Diagnostic Note

Shift Position P or N

Park/Neutral position switch status

OFF or ON

OFF: Shift state not park (P) or (N)

ON: Shift state park (P) or (N)

When OFF is displayed, the engine will not crank.

Body Electrical > Starting Control > Data List

Tester Display
Shift Position P or N

OK:

The Techstream display changes correctly in response to the shift state.

REPLACE ECM

NG (w/o Stop and Start System)

GO TO STEP 22

NG (w/ Stop and Start System)

21.	READ VALUE USING TECHSTREAM (NEUTRAL SWITH CLUTCH SW, SHIFT POSITION P OR N)

(a) Disconnect the A34 engine stop and start ECU connector.

(b) Enter the following menus: Body Electrical / Power Source Control / Data List.

Body Electrical > Power Source Control > Data List

Tester Display

Measurement Item

Range

Normal Condition

Diagnostic Note

Neutral SW/ Clutch SW

Shift position (P, N)

ON or OFF

ON: Shift state park (P) or (N)

OFF: Shift state not park (P) or (N)

Use this item to determine whether the park/neutral position switch assembly is malfunctioning.
When the engine cannot be started due to a park/neutral position switch assembly malfunction, OFF is displayed.

Body Electrical > Power Source Control > Data List

Tester Display
Neutral SW/ Clutch SW

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

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

Body Electrical > Starting Control > Data List

Tester Display

Measurement Item

Range

Normal Condition

Diagnostic Note

Shift Position P or N

Park/Neutral position switch status

OFF or ON

OFF: Shift state not park (P) or (N)

ON: Shift state park (P) or (N)

When OFF is displayed, the engine will not crank.

Body Electrical > Starting Control > Data List

Tester Display
Shift Position P or N

OK:

The Techstream display changes correctly in response to the shift state.

REPLACE ENGINE STOP AND START ECU

GO TO STEP 22

22.	INSPECT PARK/NEUTRAL POSITION SWITCH ASSEMBLY

(a) Remove the park/neutral position switch assembly.

for 2WD:

Click here

for AWD:

Click here

(b) Inspect the park/neutral position switch assembly.

for 2WD:

Click here

for AWD:

Click here

REPLACE PARK/NEUTRAL POSITION SWITCH ASSEMBLY

for 2WD:

Click here

for AWD:

Click here

23.	CHECK HARNESS AND CONNECTOR (CERTIFICATION ECU (SMART KEY ECU ASSEMBLY) - PARK/NEUTRAL POSITION SWITCH ASSEMBLY)

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

(b) Disconnect the C31 park/neutral position switch assembly connector.

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

Standard Resistance:

Tester Connection	Condition	Specified Condition
A15-9 (STAR) - C31-4 (B)	Always	Below 1 Ω
A15-20 (STA) - C31-9 (L)	Always	Below 1 Ω
A15-9 (STAR) or C31-4 (B) - Other terminals and body ground	Always	10 kΩ or higher
A15-20 (STA) or C31-9 (L) - Other terminals and body ground	Always	10 kΩ or higher

(e) Connect the A15 certification ECU (smart key ECU assembly) connector.

(f) Connect the C31 park/neutral position switch assembly connector.

(g) Install the ST NO. 1 relay

REPAIR OR REPLACE HARNESS OR CONNECTOR

24.	CHECK CERTIFICATION ECU (SMART KEY ECU ASSEMBLY) (TERMINAL STAR)

(a) Measure the voltage according to the value(s) in the table below.

Standard Voltage:

Tester Connection	Condition	Specified Condition
A15-9 (STAR) - Body ground	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.

*a	Component with harness connected (Certification ECU (Smart Key ECU Assembly))

REPLACE CERTIFICATION ECU (SMART KEY ECU ASSEMBLY)

25.	INSPECT ST NO. 1 RELAY

(a) Remove the ST NO. 1 relay.

(b) Inspect the ST NO. 1 relay.

Click here

REPLACE ST NO. 1 RELAY

26.	CHECK HARNESS AND CONNECTOR (CERTIFICATION ECU (SMART KEY ECU ASSEMBLY) - ST NO. 1 RELAY)

(a) Measure the voltage according to the value(s) in the table below.

Standard Voltage:

Tester Connection	Condition	Specified Condition
ST NO. 1 relay installation terminal 2 - Body ground	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.

*a	No. 1 Engine Room Relay Block (ST No. 1 Relay Installation Terminal)

REPAIR OR REPLACE HARNESS OR CONNECTOR

27.	CHECK HARNESS AND CONNECTOR (ST NO. 1 RELAY - BODY GROUND)

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

Standard Resistance:

Tester Connection	Condition	Specified Condition
ST NO. 1 relay installation terminal 1 - Body ground	Always	Below 1 Ω

*a	No. 1 Engine Room Relay Block (ST No. 1 Relay Installation Terminal)

REPLACE CERTIFICATION ECU (SMART KEY ECU ASSEMBLY)

REPAIR OR REPLACE HARNESS OR CONNECTOR

28.	CHECK SHIFT LOCK CONTROL UNIT ASSEMBLY (OUTPUT TO CERTIFICATION ECU (SMART KEY ECU ASSEMBLY))

(a) Measure the voltage according to the value(s) in the table below.

Standard Voltage:

Tester Connection	Condition	Specified Condition
G54-22 (P) - Other terminals and body ground	Shift state park (P) → Shift state not park (P)	9 V or higher → 2.76 V or less

*a	Component with harness connected (Certification ECU (Smart Key ECU Assembly))

REPLACE CERTIFICATION ECU (SMART KEY ECU ASSEMBLY)

29.	CHECK HARNESS AND CONNECTOR (CERTIFICATION ECU (SMART KEY ECU ASSEMBLY) - SHIFT LOCK CONTROL UNIT ASSEMBLY)

(a) Disconnect the G54 certification ECU (smart key ECU assembly) connector.

(b) Disconnect the G26 shift lock control unit assembly connector.

Standard Resistance:

Tester Connection	Condition	Specified Condition
G54-22 (P) - G26-3 (P2)	Always	Below 1 Ω
G54-22 (P) or G26-3 (P2) - Other terminals and body ground	Always	10 kΩ or higher

REPAIR OR REPLACE HARNESS OR CONNECTOR

30.	CHECK SHIFT LOCK CONTROL UNIT ASSEMBLY

(a) Reconnect the certification ECU (smart key ECU assembly) connector.

*a	Component with harness connected (Certification ECU (Smart Key ECU Assembly))

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

Standard Voltage:

Tester Connection	Condition	Specified Condition
G54-22 (P) - Other terminals and body ground	Shift state park (P)	9 V or higher

REPLACE SHIFT LOCK CONTROL UNIT ASSEMBLY

for 2WD:

Click here

for AWD:

Click here

REPLACE CERTIFICATION ECU (SMART KEY ECU ASSEMBLY)

31.	CHECK HARNESS AND CONNECTOR (STOP LIGHT SWITCH ASSEMBLY - POWER SUPPLY AND BODY GROUND)

(a) Disconnect the stop light switch assembly connector.

*a	Front veiw of wire harness connector (to Stop Light Switch Assembly)

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

Standard Voltage:

Tester Connection	Condition	Specified Condition
A40-7 (B) - Body ground	Always	11 to 14 V

Standard Resistance:

Tester Connection	Condition	Specified Condition
A40-2 (GND) - Body ground	Always	Below 1 Ω

REPAIR OR REPLACE HARNESS OR CONNECTOR

32.	INSPECT STOP LIGHT SWITCH ASSEMBLY

(a) Inspect the stop light switch assembly.

Click here

REPLACE STOP LIGHT SWITCH ASSEMBLY

33.	CHECK HARNESS AND CONNECTOR (CERTIFICATION ECU (SMART KEY ECU ASSEMBLY) - STOP LIGHT SWITCH ASSEMBLY)

(a) Disconnect the M7 certification ECU (smart key ECU assembly) connector.

(b) Disconnect the A24 ECM connector.

(d) Disconnect the G26 shift lock control unit assembly connector.

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

Standard Resistance:

Tester Connection	Condition	Specified Condition
M7-25 (STP1) - A40-3 (L)	Always	Below 1 Ω
M7-25 (STP1) or A40-3 (L) - Other terminals and body ground	Always	10 kΩ or higher

REPLACE CERTIFICATION ECU (SMART KEY ECU ASSEMBLY)

REPAIR OR REPLACE HARNESS OR CONNECTOR

DESCRIPTION

Related Data List and Active Test Items

Power Source Control

Smart Key

Starting Control

WIRING DIAGRAM

w/ Stop and Start System:

w/o Stop and Start System:

CAUTION / NOTICE / HINT

PROCEDURE

Body Electrical > Power Source Control > Data List

Body Electrical > Power Source Control > Data List

Body Electrical > Power Source Control > Data List

Body Electrical > Power Source Control > Data List

Body Electrical > Power Source Control > Data List

Body Electrical > Power Source Control > Data List

Body Electrical > Starting Control > Data List

Body Electrical > Starting Control > Data List

Body Electrical > Power Source Control > Data List

Body Electrical > Power Source Control > Data List

Body Electrical > Starting Control > Data List

Body Electrical > Starting Control > Data List

Body Electrical > Power Source Control > Data List

Body Electrical > Power Source Control > Data List

Body Electrical > Starting Control > Data List

Body Electrical > Starting Control > Data List

Body Electrical > Power Source Control > Data List

Body Electrical > Power Source Control > Data List

Body Electrical > Starting Control > Data List

Body Electrical > Starting Control > Data List