THEFT DETERRENT / KEYLESS ENTRY SMART ENTRY AND START SYSTEM(for Start Function, Gasoline Model) TERMINALS OF ECU

CHECK CERTIFICATION ECU (SMART KEY ECU ASSEMBLY)

3.375,0.406 3.792,0.656 0.417,0.25 4.802,0.406 5.219,0.656 0.417,0.25 1.969,0.417 2.385,0.667 0.417,0.25 4.854,0.458 5.375,0.677 0.521,0.219 10 false G170 3.448,0.448 3.896,0.677 0.448,0.229 10 false M59 2.021,0.469 2.479,0.708 0.458,0.24 10 false A126

a.

Disconnect the A126 and G170 certification ECU (smart key ECU assembly) connectors.

b.

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

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

Terminal No. (Symbol)	Terminal Description	Condition	Specified Condition	Related Data List Item/DTC
A126-15 (NE) - Body ground	Engine speed signal	Always	10 kΩ or higher	Power Source Control Engine Condition
A126-21 (STP1) - Body ground	Stop light switch signal	Brake pedal depressed → Brake pedal released	9 V or higher → 1 V or less	Power Source Control Stop Light Switch
G170-6 (+B) - G170-29 (E)	Power source	Always	11 to 14 V	-
G170-14 (P) - G170-29 (E)	P position signal	Shift lever in P → Shift lever not in P	30 kΩ or higher → Below 200 Ω	Power Source Control Shift P Signal
A126-22 (CUTB) - Body ground	Dark current cut pin*	Always	11 to 14 V	-
G170-29 (E) - Body ground	GND	Always	Below 1 Ω	-
G170-11 (SLP) - G170-29 (E)	GND	Always	Below 1 Ω	-
G170-23 (SSW3) - Body ground	SSW3 contact signal	Engine switch pushed → Engine switch not pushed	Below 15 Ω → 10 kΩ or higher	Power Source Control Push Start Switch 3
G170-27 (SSW2) - Body ground	SSW2 contact signal	Engine switch pushed → Engine switch not pushed	Below 15 Ω → 10 kΩ or higher	Power Source Control Push Start Switch 2
G170-19 (SSW1) - Body ground	SSW1 contact signal	Engine switch pushed → Engine switch not pushed	Below 15 Ω → 10 kΩ or higher	Power Source Control Push Start Switch 1

*: 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 forms the detection area, stops).

c.

Connect the A126 and G170 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.

Terminal No. (Symbol)	Terminal Description	Condition	Specified Condition	Related Data List Item/DTC
A126-3 (STA) - G170-29 (E)	P/N position signal	Shift lever in P/N → Shift lever not in P/N	11 to 14 V → 1.0 V or less	-
A126-10 (STAR) - G170-29 (E)	Outputs voltage to the starter relay · Outputs voltage (12 V) to the starter relay when starting the engine. (Max. 30 sec. 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 → 1.0 V or less	-
A126-15 (NE) - Body ground	Engine speed signal	Idling (engine warmed up)	Pulse generation (See waveform 1)	Power Source Control Engine Condition
G170-8 (LIN) - G170-29 (E)	LIN communication line	Ignition switch ON	Pulse generation	Entry&Start Steering Lock Start Condition
G170-14 (P) - G170-29 (E)	P position signal	Shift lever in P → Shift lever not in P	9 V or higher → 2.76 V or less	Power Source Control Shift P Signal
G170-23 (SSW3) - G170-29 (E)	SSW3 contact signal	Engine switch not pushed → Engine switch pushed	9 V or higher → 1 V or less	Power Source Control Push Start Switch 3
G170-27 (SSW2) - G170-29 (E)	SSW2 contact signal	Engine switch not pushed → Engine switch pushed	9 V or higher → 1 V or less	Power Source Control Push Start Switch 2
G170-19 (SSW1) - G170-29 (E)	SSW1 contact signal	Engine switch not pushed → Engine switch pushed	9 V or higher → 1 V or less	Power Source Control Push Start Switch 1
G170-21 (ACCD) - G170-29 (E)	ACC signal	Ignition switch off → Ignition switch ACC	1 V or less → 8.5 V or higher	Power Source Control ACC Relay Monitor
A126-11 (IGRD) - G170-29 (E)	IG signal	Ignition switch off → Ignition switch ON	1 V or less → 9 V or higher	Power Source Control IGR Relay Circuit (Outside) Monitor
A126-24 (IGPD) - G170-29 (E)	IG signal	Ignition switch off → Ignition switch ON	1 V or less → 9 V or higher	Power Source Control IGP Relay Circuit (Outside) Monitor
A126-13 (SPD) - G170-29 (E)	Vehicle speed signal	Vehicle being driven at approx. 5 km/h (3 mph)	Pulse generation (See waveform 2)	Power Source Control Vehicle Running Condition (Line)
G170-4 (CLG5) - G170-29 (E)	Output to No. 1 indoor electrical key antenna assembly (front floor)	Procedure: 1. Ignition switch off 2. Electrical key transmitter sub-assembly not inside vehicle 3. Within 30 seconds of closing any door	Pulse generation (See waveform 3)	-
G170-5 (CG5B) - G170-29 (E)	Output to No. 1 indoor electrical key antenna assembly (front floor) (terminal on opposite side of component from CLG5 output terminal)	Procedure: 1. Ignition switch off 2. Electrical key transmitter sub-assembly not inside vehicle 3. Within 30 seconds of closing any door	Pulse generation (See waveform 3)	-
M59-1 (CLG6) - G170-29 (E)	Output to No. 1 indoor electrical key antenna assembly (rear floor)	Procedure: 1. Ignition switch off 2. Electrical key transmitter sub-assembly not inside vehicle 3. Within 30 seconds of closing any door	Pulse generation (See waveform 3)	-
M59-2 (CG6B) - G170-29 (E)	Output to No. 1 indoor electrical key antenna assembly (rear floor) (terminal on opposite side of component from CLG6 output terminal)	Procedure: 1. Ignition switch off 2. Electrical key transmitter sub-assembly not inside vehicle 3. Within 30 seconds of closing any door	Pulse generation (See waveform 3)	-
M59-10 (CLG7) - G170-29 (E)	Output to No. 1 indoor electrical key antenna assembly (inside luggage compartment)	Procedure: 1. Ignition switch off 2. Electrical key transmitter sub-assembly not inside vehicle 3. Within 30 seconds of closing any door	Pulse generation (See waveform 3)	-
M59-9 (CG7B) - G170-29 (E)	Output to No. 1 indoor electrical key antenna assembly (inside luggage compartment) (terminal on opposite side of component from CLG7 output terminal)	Procedure: 1. Ignition switch off 2. Electrical key transmitter sub-assembly not inside vehicle 3. Within 30 seconds of closing any door	Pulse generation (See waveform 3)	-
G170-30 (AGND) - Body ground	Transponder key amplifier ground	Always	Below 1 Ω	-
G170-12 (ANT1) - G170-30 (AGND)	Signal input / output from transponder key coil (transponder key coil built into engine switch)	Ignition switch off, electrical key transmitter sub-assembly not in cabin, within 30 seconds of engine switch pressed	Pulse generation (See waveform 4)	Entry&Start Encrypt Code Difference
G170-13 (ANT2) - G170-30 (AGND)	Signal input / output from transponder key coil (transponder key coil built into engine switch)	Ignition switch off, electrical key transmitter sub-assembly not in cabin, within 30 seconds of engine switch pressed	Pulse generation (See waveform 5)	Entry&Start Encrypt Code Difference
G170-25 (IND) - G170-29 (E)	Security indicator output	Ignition switch off → ON	Pulse generation → Below 2 V	-
M59-20 (WCSW) - G170-29 (E)*2	Wireless charger system stop signal	Procedure: 1. Ignition switch off 2. Electrical key transmitter sub-assembly inside vehicle 3. Ignition switch off → ACC or ON	Below 1 V → 4.5 to 6 V (For 1 second after ignition switch to ACC or ON)	-

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

*2: w/ Wireless Charger System

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.

i.

2.969,1.75 3.375,1.938 0.406,0.188 10 GND

Waveform 1

Measurement Condition
Item	Content
Tester Connection	A126-15 (NE) - Body ground
Tool Setting	2 V/DIV., 2 ms./DIV.
Condition	Idling (engine warmed up)

HINT:: The wavelength becomes shorter as the engine speed increases.

ii.

2.875,1.177 3.229,1.344 0.354,0.167 10 false GND

Waveform 2

Measurement Condition
Item	Content
Tester Connection	A126-13 (SPD) - G170-29 (E)
Tool Setting	5 V/DIV., 20 ms./DIV.
Condition	Vehicle being driven at approx. 5 km/h (3 mph)

HINT:: The wavelength becomes shorter as the vehicle speed increases.

iii.

0.354,1.167 0.813,1.365 0.458,0.198 10 false GND 1.365,1.896 1.823,2.094 0.458,0.198 10 false *a 2.469,1.896 2.927,2.094 0.458,0.198 10 false *b

*a	For 30 seconds after any door closed
*b	After 30 seconds or more have elapsed since any door closed

Waveform 3

Measurement Condition
Item	Content
Tester Connection	G170-4 (CLG5) - G170-29 (E) G170-5 (CG5B) - G170-29 (E) M59-1 (CLG6) - G170-29 (E) M59-2 (CG6B) - G170-29 (E) M59-10 (CLG7) - G170-29 (E) M59-9 (CG7B) - G170-29 (E)
Tool Setting	5 V/DIV., 500 ms./DIV.
Condition	Procedure: 1. Ignition switch off 2. Electrical key transmitter sub-assembly not inside vehicle 3. Within 30 seconds of closing any door

iv.

0.406,1.01 0.865,1.208 0.458,0.198 10 false GND

Waveform 4

Measurement Condition
Item	Content
Tester Connection	G170-12 (ANT1) - G170-30 (AGND)
Tool Setting	5 V/DIV.,200 ms/DIV.
Condition	Ignition switch off, electrical key transmitter sub-assembly not in cabin, within 30 seconds of engine switch pressed

v.

0.406,1.01 0.865,1.208 0.458,0.198 10 false GND

Waveform 5

Measurement Condition
Item	Content
Tester Connection	G170-13 (ANT2) - G170-30 (AGND)
Tool Setting	20 V/DIV.,200 ms./DIV.
Condition	Ignition switch off, electrical key transmitter sub-assembly not in cabin, within 30 seconds of engine switch pressed

CHECK ID CODE BOX (IMMOBILISER CODE ECU)

3.396,0.156 3.792,0.385 0.396,0.229 3.49,0.188 3.813,0.365 0.323,0.177 10 false G57

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.

Terminal No. (Symbol)	Terminal Description	Condition	Specified Condition	Related Data List Item
G57-1 (+B) - Body ground	Power source	Always	11 to 14 V	-
G57-5 (GND) - Body ground	Ground	Always	Below 1 Ω	-

c.

Connect 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.

Terminal No. (Symbol)	Terminal Description	Condition	Specified Condition	Related Data List Item
G57-3 (EFII) - G57-5 (GND)	EFI communication input (Signal input from ECM to ID code box (immobiliser code ECU))	Ignition switch off	11 to 14 V	Entry&Start · EFI Code Receive · Start Request
G57-3 (EFII) - G57-5 (GND)	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 ignition switch turned to ON after cable disconnected and reconnected to battery	Pulse generation (See waveform 1)
G57-4 (EFIO) - G57-5 (GND)	EFI communication output (Signal output from ID code box (immobiliser code ECU) to ECM)	Ignition switch off	Below 1 V
G57-4 (EFIO) - G57-5 (GND)	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 ignition switch turned to ON after cable disconnected and reconnected to battery	Pulse generation (See waveform 2)
G57-2 (LIN1) - G57-5 (GND)	LIN communication line	Ignition switch ON	Pulse generation	Entry&Start · Steering Lock Start Cond

e.

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.

i.

Waveform 1

0.917,1.271 1.375,1.469 0.458,0.198 10 GND 2.719,1.354 3.177,1.552 0.458,0.198 10 *a 2.906,1.354 3.365,1.552 0.458,0.198 10 *b

*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 ignition switch turned to ON after cable disconnected and reconnected to battery

ii.

Waveform 2

0.844,1.24 1.302,1.438 0.458,0.198 10 GND 3.115,1.323 3.344,1.531 0.229,0.208 10 *a 3.313,1.323 3.542,1.531 0.229,0.208 10 *b

*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 ignition switch turned to ON after cable disconnected and reconnected to battery

CHECK ECM (for GTMC Made)

1.833,0.792 2.281,1.042 0.448,0.25 5.448,0.813 5.896,1.063 0.448,0.25 1.938,0.833 2.396,1.031 0.458,0.198 10 false C71 5.51,0.865 5.969,1.063 0.458,0.198 10 false A125

a.

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

Terminal No. (Symbol)	Terminal Description	Condition	Specified Condition	Related Data List Item/DTC
A125-31 (BATT) - A125-22 (E1)	+B power supply	Always	11 to 14 V	-
A125-22 (E1) - Body ground	Ground	Always	Below 1 Ω	-
A125-55 (IMO) - A125-22 (E1)	EFI communication input (Signal input from ECM to ID code box (immobiliser code ECU))	Ignition switch off	11 to 14 V	Entry&Start · EFI Code Receive · Engine Start Request
A125-55 (IMO) - A125-22 (E1)	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 ignition switch turned to ON after cable disconnected and reconnected to battery	Pulse generation (See waveform 1)
A125-54 (IMI) - A125-22 (E1)	EFI communication input (Signal output from ID code box (immobiliser code ECU) to ECM)	Ignition switch off	1 V or less
A125-54 (IMI) - A125-22 (E1)	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 ignition switch turned to ON after cable disconnected and reconnected to battery	Pulse generation (See waveform 2)
A125-66 (NEO) - A125-22 (E1)	Engine speed signal	Idling (engine warmed up)	Pulse generation (See waveform 3)	Power Source Control Engine Condition
A125-18 (STA) - A125-22 (E1)	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 is cranking	6 V or higher	-
A125-81 (PPOS) - A125-22 (E1)	P position signal	Shift lever in P → Shift lever not in P	9 V or higher → 2.76 V or less	Power Source Control Shift P Signal

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.

i.

Waveform 1 (Reference)

0.896,1.24 1.354,1.438 0.458,0.198 10 false GND 2.719,1.354 3.177,1.552 0.458,0.198 10 false *a 2.906,1.354 3.365,1.552 0.458,0.198 10 false *b

*a

Approximately 160 ms.

*b

Approximately 270 ms.

Measurement Condition
Item	Content
Tester Connection	A125-55 (IMO) - A125-22 (E1)
Tool Setting	2 V/DIV., 500 ms./DIV.
Condition	Within 3 seconds of engine start or within 3 seconds of ignition switch turned to ON after cable disconnected and reconnected to battery

ii.

Waveform 2 (Reference)

0.844,1.24 1.302,1.438 0.458,0.198 10 GND 3.115,1.323 3.344,1.531 0.229,0.208 10 *a 3.313,1.323 3.542,1.531 0.229,0.208 10 *b

*a

Approximately 160 ms.

*b

Approximately 270 ms.

Measurement Condition
Item	Content
Tester Connection	A125-54 (IMI) - A125-22 (E1)
Tool Setting	2 V/DIV., 500 ms./DIV.
Condition	Within 3 seconds of engine start or within 3 seconds of ignition switch turned to ON after cable disconnected and reconnected to battery

iii.

2.969,1.75 3.375,1.938 0.406,0.188 10 GND

Waveform 3

Measurement Condition
Item	Content
Tester Connection	A125-66 (NEO) - A125-22 (E1)
Tool Setting	2 V/DI., 2 ms./DIV.
Condition	Idling (engine warmed up)

HINT:: The wavelength becomes shorter as the engine speed increases.

CHECK ECM (for SFTM Made)

1.833,0.792 2.281,1.042 0.448,0.25 5.448,0.813 5.896,1.063 0.448,0.25 1.938,0.833 2.396,1.031 0.458,0.198 10 false C71 5.521,0.854 5.979,1.052 0.458,0.198 10 false A116

a.

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

Tester Connection	Terminal Description	Condition	Specified Condition	Related Data List Item
A116-31 (BATT) - A116-22 (E1)	+B power supply	Always	11 to 14 V	-
A116-22 (E1) - Body ground	Ground	Always	Below 1 Ω	-
A116-55 (IMO) - A116-22 (E1)	EFI communication output (Signal input from ECM to ID code box (immobiliser code ECU))	Ignition switch off	11 to 14 V	Entry&Start · EFI Code Receive · Engine Start Request
A116-55 (IMO) - A116-22 (E1)	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 ignition switch turned to ON after cable disconnected and reconnected to battery	Pulse generation (See waveform 1)
A116-54 (IMI) - A116-22 (E1)	EFI communication input (Signal output from ID code box (immobiliser code ECU) to ECM)	Ignition switch off	Below 1 V
A116-54 (IMI) - A116-22 (E1)	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 ignition switch turned to ON 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.

i.

Waveform 1

0.917,1.271 1.375,1.469 0.458,0.198 10 GND 2.719,1.354 3.177,1.552 0.458,0.198 10 *a 2.906,1.354 3.365,1.552 0.458,0.198 10 *b

*a

Approximately 160 ms

*b

Approximately 270 ms

Item	Content
Tester Connection	A116-55 (IMO) - A116-22 (E1)
Tool Setting	2 V/DIV., 500 ms./DIV.
Condition	Within 3 seconds of engine start or within 3 seconds of ignition switch turned to ON after cable disconnected and reconnected to battery

ii.

Waveform 2

0.844,1.24 1.302,1.438 0.458,0.198 10 GND 3.115,1.323 3.344,1.531 0.229,0.208 10 *a 3.313,1.323 3.542,1.531 0.229,0.208 10 *b

*a

Approximately 160 ms

*b

Approximately 270 ms

Item	Content
Tester Connection	A116-54 (IMI) - A116-22 (E1)
Tool Setting	2 V/DIV., 500 ms./DIV.
Condition	Within 3 seconds of engine start or within 3 seconds of ignition switch turned to ON after cable disconnected and reconnected to battery

CHECK ENGINE SWITCH

3.354,0.167 3.865,0.417 0.51,0.25 3.427,0.198 3.885,0.396 0.458,0.198 10 false G171

a.

Disconnect the G171 engine switch connector.

b.

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

Terminal No. (Symbol)	Terminal Description	Condition	Specified Condition	Related Data List Item/DTC
G171-3 (GND) - Body ground	Transponder key amplifier ground	Always	Below 1 Ω	-

c.

Connect the G171 engine switch connector.

d.

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

Terminal No. (Symbol)	Terminal Description	Condition	Specified Condition	Related Data List Item/DTC
G171-1 (ANT1) - G171-3 (GND)	Signal input / output from transponder key coil (transponder key coil built into engine switch)	Ignition switch off, electrical key transmitter sub-assembly not in cabin, within 30 seconds of engine switch pressed	Pulse generation (See waveform 1)	Entry&Start Encrypt Code Difference 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
G171-7 (ANT2) - G171-3 (GND)	Signal input / output from transponder key coil (transponder key coil built into engine switch)	Ignition switch off, electrical key transmitter sub-assembly not in cabin, within 30 seconds of engine switch pressed	Pulse generation (See waveform 2)
G171-11 (SS3) - G171-3 (GND)	SS3 contact signal HINT: Backup for SS1. Behaves the same way as SS1.	Engine switch not pushed → Engine switch pushed	9 V or higher → Below 1 V	Power Source Control Start Switch 3
G171-6 (SS2) - G171-3 (GND)	SS2 contact signal HINT: Backup for SS1. Behaves the same way as SS1.	Engine switch not pushed → Engine switch pushed	9 V or higher → Below 1 V	Power Source Control Start Switch 2
G171-12 (SS1) - G171-3 (GND)	SS1 contact signal	Engine switch not pushed → Engine switch pushed	9 V or higher → Below 1 V	Power Source Control Start Switch 1

e.

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.

i.

0.354,0.969 0.813,1.167 0.458,0.198 10 false GND

Waveform 1 (Reference)

Measurement Condition
Item	Content
Tester Connection	G171-1 (ANT1) - G171-3 (GND)
Tool Setting	5 V/DIV.,200 ms/DIV.
Condition	Ignition switch off, electrical key transmitter sub-assembly not in cabin, within 30 seconds of engine switch pressed

ii.

0.354,0.979 0.813,1.177 0.458,0.198 10 false GND

Waveform 2 (Reference)

Measurement Condition
Item	Content
Tester Connection	G171-7 (ANT2) - G171-3 (GND)
Tool Setting	20 V/DIV., 200 ms./DIV.
Condition	Ignition switch off, electrical key transmitter sub-assembly not in cabin, within 30 seconds of engine switch pressed

SMART ENTRY AND START SYSTEM (for Entry Function)

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