START STOP UNIT INSPECTION

• Because the start stop unit terminals 3A—3L and 4A—4L are inside the start stop unit and not exposed, the terminal voltage cannot be measured.

• Terminals with terminal voltage that cannot be measured are not indicated in the terminal voltage table (reference).

Terminal	Signal name	Connected to	Measurement conditions	Voltage (V)	Inspection item(s)
1A	Power supply	• ROOM 15 A fuse • Front body control module (FBCM) • Rear body control module (RBCM)	Under any condition	B+	• ROOM 15 A fuse • Related wiring harness
1B	Power supply	• C/U IG1 15 A fuse • Front body control module (FBCM)	Ignition switched ON (engine off)	B+	• C/U IG1 15 A fuse • IG1 relay • Start stop unit ― Terminal 2S
Ignition switched OFF (LOCK) or at ACC	1.0 or less
1C	Brake switch	• Brake switch (No.1 signal) • Brake light unit • PCM • Rear body control module (RBCM)	Brake pedal depressed	B+	• STOP 10 A fuse • Brake switch (No.1 signal) • Related wiring harness
Brake pedal not depressed	1.0 or less
1D	Starter monitor	• Starter relay • PCM	Ignition switched ON (engine off)	Other than selector lever is in P or N position	B+	• Start stop unit ― Terminal 1A ― Terminal 1B ― Terminal 2W • PCM ― Terminal 2BF • Related wiring harness
Selector lever is in P or N position	1.0 or less
1E	ACC monitor	MIRROR 7.5 A fuse	Switch the ignition to ACC or ON (engine off or on)	B+	• ACC relay • IG2 30 A fuse • MIRROR 7.5 A fuse • Related wiring harness
Ignition switched OFF (LOCK)	1.0 or less
1F	Selector lever position switch	• TCM • PCM	Other than selector lever is in P or N position	B+	• TCM ― Terminal J • Start stop unit ― Terminal 1A ― Terminal 1B ― Terminal 2W • Related wiring harness
Selector lever is in P or N position	1.0 or less
1G	Hazard warning switch signal	Hazard warning switch	Hazard warning switch not pressed (OFF)	B+	• Hazard warning switch • Start stop unit ― Terminal 1A ― Terminal 1B ― Terminal 2W • Related wiring harness
Hazard warning switch pressed (ON)	1.0 or less
1H	Push button start 1	Push button start	Push button start pressed	1.0 or less	• Push button start • Start stop unit ― Terminal 1A ― Terminal 1B ― Terminal 2W • Related wiring harness
Push button start not pressed	B+
1I	Push button illumination	Push button start	Determination using terminal voltage inspection is not possible.
1J	P position	Not P position switch	Selector lever is in P position	B+	• Not P position switch • Start stop unit ― Terminal 1A ― Terminal 1B ― Terminal 2W • Related wiring harness
Except above	1.0 or less
1K	Push button illumination (green)	Push button start	Engine starting conditions are met	1.0 or less	• Push button start • AT 15 A fuse • Remote transmitter • Start stop unit ― Terminal 1C ― Terminal 1F • Related wiring harness
Except above	B+
1M	Push button illumination (amber)	Push button start	Ignition switched to ACC or ON (engine off)	1.0 or less	• Push button start • AT 15 A fuse • Start stop unit ― Terminal 1E • Related wiring harness
Except above	B+
1P	Lock input	• Door lock-link switch (driver's door) • Rear body control module (RBCM) • Power liftgate (PLG) control module	Driver's door locked	1.0 or less	• Door lock-link switch (driver's door) • Start stop unit ― Terminal 1A ― Terminal 1B ― Terminal 2W • Related wiring harness
Driver's door unlocked	Approx. 5
1Q	Rear body control module (RBCM) communication	Rear body control module (RBCM)	Because this terminal is for communication, determination using terminal voltage inspection is not possible.
1R	—	—	—	—	—
1S^*3	Steering angle sensor power supply	Steering angle sensor	The specified time has elapsed since key placed outside vehicle and all doors locked	1.0 or less	• Steering angle sensor • Start stop unit ― Terminal 1A ― Terminal 1B ― Terminal 2W • Related wiring harness
Except above	Approx. 5
1T^*3	Steering angle sensor ground	Steering angle sensor	Under any condition	1.0 or less	Start stop unit ― Terminal 1AF ― Terminal 2B
1U^*3	Steering angle sensor (signal A/D1)	Steering angle sensor	Steering wheel is turned to left and right	4.00—4.75Û0.25—0.75	• Steering angle sensor • Start stop unit ― Terminal 1S ― Terminal 1T • Related wiring harness
1V	Windshield wiper switch signal (LO)	Front body control module (FBCM)	Ignition switch ON (engine off or on)	Other than windshield wiper switch at LO and HI	B+	• Front body control module (FBCM) • Start stop unit ― Terminal 1A ― Terminal 1B ― Terminal 2W • Windshield wiper and washer switch • Related wiring harness
Windshield wiper switch at LO	1.0 or less
1W^*3	Steering angle sensor (signal A/D2)	Steering angle sensor	Steering wheel is turned to left and right	4.00—4.75Û0.25—0.75	• Steering angle sensor • Start stop unit ― Terminal 1S ― Terminal 1T • Related wiring harness
1X	Headlight switch signal (LO)	Front body control module (FBCM)	Light switch at position other than HEAD and passing	B+	• Light switch • Start stop unit ― Terminal 1A ― Terminal 1B ― Terminal 2W • Related wiring harness
Light switch at HEAD position	1.0 or less
1Y	Cruise control switch signal	Cruise control switch	OFF/CANCEL switch is pressed	Approx. 0.0	• Clock spring • Cruise control switch • Start stop unit ― Terminal 1A ― Terminal 1B ― Terminal 2W • Related wiring harness
SET/ - switch is pressed	Approx. 0.3
RESUME/ + switch is pressed*3	Approx. 0.7
SET/ + switch is pressed
ON/ MODE switch is pressed*3	Approx. 1.0
ON switch is pressed
RESUME switch is pressed	Approx. 1.5
DISTANCE+ switch is pressed	Approx. 1.9
DISTANCE- switch is pressed	Approx. 2.4
Except above	Approx. 3.7
1Z	Cruise control switch ground	Cruise control switch	Under any condition	1.0 or less	• Clock spring • Cruise control switch • Related wiring harness
1AA	Steering switch signal	Steering switch	INFO button is pressed	Approx. 2.3	• Clock spring • Steering switch • Start stop unit ― Terminal 1A ― Terminal 1B ― Terminal 2W • Related wiring harness
Except above	Approx. 3.4
1AB	Steering switch ground	Steering switch	Under any condition	1.0 or less	Start stop unit ― Terminal 1AF ― Terminal 2B
1AC	PATS+	Coil antenna (push button start)	Because this terminal is for communication, determination using terminal voltage inspection is not possible.
1AE	PATS-	Coil antenna (push button start)	Because this terminal is for communication, determination using terminal voltage inspection is not possible.
1AF	GROUND	Body ground	Under any condition	1.0 or less	• Body ground • Related wiring harness
2A	GROUND	Body ground	Under any condition	1.0 or less	• Body ground • Related wiring harness
2B	GROUND	Body ground	Under any condition	1.0 or less	• Body ground • Related wiring harness
2C	ACC relay control	• ACC relay • Outlet relay	Switch the ignition to ACC or ON (engine off or on)	B+	• Start stop unit ― Terminal 1A ― Terminal 1H ― Terminal 2J ― Terminal 2W • Related wiring harness
Ignition switched OFF (LOCK)	1.0 or less
2D	IG2 relay control	Front body control module (FBCM)	Ignition switched ON (engine off)	B+	• Start stop unit ― Terminal 1A ― Terminal 1B ― Terminal 1H ― Terminal 2J ― Terminal 2W • Related wiring harness
Ignition switched OFF (LOCK) or at ACC	1.0 or less
2E	—	—	—	—	—
2F^*1	LF control unit communication	LF control unit	Because this terminal is for communication, determination using terminal voltage inspection is not possible.
2G	Shift lock	Shift lock solenoid	Ignition switch ON (engine off or on)	Selector lever at position except P	B+	• Shift lock solenoid • ENGINE.IG1 7.5 A fuse • IG1 relay • Related wiring harness
Selector lever at P position and brake pedal depressed	1.0 or less
2H^*1	LF control unit communication	LF control unit	Because this terminal is for communication, determination using terminal voltage inspection is not possible.
2I^*2	Keyless antenna (inside vehicle, center)	Keyless antenna (inside vehicle, center)	Because this terminal is for communication, determination using terminal voltage inspection is not possible.
2J	Push button start 2	Push button start	Push button start pressed	1.0 or less	• Push button start • Start stop unit ― Terminal 1A ― Terminal 1B ― Terminal 2W • Related wiring harness
Push button start not pressed	B+
2K^*2	Keyless antenna (inside vehicle, center)	Keyless antenna (inside vehicle, center)	Because this terminal is for communication, determination using terminal voltage inspection is not possible.
2L^*2	Shield ground	Shield ground	Under any condition	1.0 or less	Start stop unit ― Terminal 1AF ― Terminal 2B
2M	HS-CAN_H	CAN system related module	Because this terminal is for communication, determination using terminal voltage inspection is not possible.
2O	HS-CAN_L	CAN system related module	Because this terminal is for communication, determination using terminal voltage inspection is not possible.
2Q	Keyless receiver power supply	Keyless receiver	Under any condition	Approx. 5	• Keyless receiver • Start stop unit ― Terminal 1A ― Terminal 1B ― Terminal 2W • Related wiring harness
2R	Keyless receiver communication	Keyless receiver	Because this terminal is for communication, determination using terminal voltage inspection is not possible.
2S	IG1 relay control	IG1 relay	Ignition switched ON (engine off)	B+	• Start stop unit ― Terminal 1A ― Terminal 1H ― Terminal 2J ― Terminal 2W • Related wiring harness
Ignition switched OFF (LOCK) or at ACC	1.0 or less
2V	Starter relay	Starter relay	When cranking	B+	• Starter relay • PCM ― Terminal 2BF • Start stop unit ― Terminal 1B • Related wiring harness
Except above^*4	1.0 or less, or B+^*4
2W	Power supply	AT 15 A fuse	Under any condition	B+	• AT 15 A fuse • Related wiring harness
2X	Power supply (ESCL)	ESCL 15 A fuse	Under any condition	B+	• ESCL 15 A fuse • CABIN. +B 50 A fuse

Terminal

Signal name

Connected to

Measurement conditions

Voltage (V)

Inspection item(s)

Power supply

• ROOM 15 A fuse

• Front body control module (FBCM)

• Rear body control module (RBCM)

Under any condition

B+

• ROOM 15 A fuse

• Related wiring harness

Power supply

• C/U IG1 15 A fuse

• Front body control module (FBCM)

Ignition switched ON (engine off)

B+

• C/U IG1 15 A fuse

• IG1 relay

• Start stop unit

― Terminal 2S

Ignition switched OFF (LOCK) or at ACC

1.0 or less

Brake switch

• Brake switch (No.1 signal)

• Brake light unit

• PCM

• Rear body control module (RBCM)

Brake pedal depressed

B+

• STOP 10 A fuse

• Brake switch (No.1 signal)

• Related wiring harness

Brake pedal not depressed

1.0 or less

Starter monitor

• Starter relay

• PCM

Ignition switched ON (engine off)

Other than selector lever is in P or N position

B+

• Start stop unit

― Terminal 1A

― Terminal 1B

― Terminal 2W

• PCM

― Terminal 2BF

• Related wiring harness

Selector lever is in P or N position

1.0 or less

ACC monitor

MIRROR 7.5 A fuse

Switch the ignition to ACC or ON (engine off or on)

B+

• ACC relay

• IG2 30 A fuse

• MIRROR 7.5 A fuse

• Related wiring harness

Ignition switched OFF (LOCK)

1.0 or less

Selector lever position switch

• TCM

• PCM

Other than selector lever is in P or N position

B+

• TCM

― Terminal J

• Start stop unit

― Terminal 1A

― Terminal 1B

― Terminal 2W

• Related wiring harness

Selector lever is in P or N position

1.0 or less

Hazard warning switch signal

Hazard warning switch

Hazard warning switch not pressed (OFF)

B+

• Hazard warning switch

• Start stop unit

― Terminal 1A

― Terminal 1B

― Terminal 2W

• Related wiring harness

Hazard warning switch pressed (ON)

1.0 or less

Push button start 1

Push button start

Push button start pressed

1.0 or less

• Push button start

• Start stop unit

― Terminal 1A

― Terminal 1B

― Terminal 2W

• Related wiring harness

Push button start not pressed

B+

Push button illumination

Push button start

Determination using terminal voltage inspection is not possible.

P position

Not P position switch

Selector lever is in P position

B+

• Not P position switch

• Start stop unit

― Terminal 1A

― Terminal 1B

― Terminal 2W

• Related wiring harness

Except above

1.0 or less

Push button illumination (green)

Push button start

Engine starting conditions are met

1.0 or less

• Push button start

• AT 15 A fuse

• Remote transmitter

• Start stop unit

― Terminal 1C

― Terminal 1F

• Related wiring harness

Except above

B+

Push button illumination (amber)

Push button start

Ignition switched to ACC or ON (engine off)

1.0 or less

• Push button start

• AT 15 A fuse

• Start stop unit

― Terminal 1E

• Related wiring harness

Except above

B+

Lock input

• Door lock-link switch (driver's door)

• Rear body control module (RBCM)

• Power liftgate (PLG) control module

Driver's door locked

1.0 or less

• Door lock-link switch (driver's door)

• Start stop unit

― Terminal 1A

― Terminal 1B

― Terminal 2W

• Related wiring harness

Driver's door unlocked

Approx. 5

Rear body control module (RBCM) communication

Rear body control module (RBCM)

Because this terminal is for communication, determination using terminal voltage inspection is not possible.

—

1S^*3

Steering angle sensor power supply

Steering angle sensor

The specified time has elapsed since key placed outside vehicle and all doors locked

1.0 or less

• Steering angle sensor

• Start stop unit

― Terminal 1A

― Terminal 1B

― Terminal 2W

• Related wiring harness

Except above

Approx. 5

1T^*3

Steering angle sensor ground

Steering angle sensor

Under any condition

1.0 or less

Start stop unit

― Terminal 1AF

― Terminal 2B

1U^*3

Steering angle sensor (signal A/D1)

Steering angle sensor

Steering wheel is turned to left and right

4.00—4.75Û0.25—0.75

• Steering angle sensor

• Start stop unit

― Terminal 1S

― Terminal 1T

• Related wiring harness

Windshield wiper switch signal (LO)

Front body control module (FBCM)

Ignition switch ON (engine off or on)

Other than windshield wiper switch at LO and HI

B+

• Front body control module (FBCM)

• Start stop unit

― Terminal 1A

― Terminal 1B

― Terminal 2W

• Windshield wiper and washer switch

• Related wiring harness

Windshield wiper switch at LO

1.0 or less

1W^*3

Steering angle sensor (signal A/D2)

Steering angle sensor

Steering wheel is turned to left and right

4.00—4.75Û0.25—0.75

• Steering angle sensor

• Start stop unit

― Terminal 1S

― Terminal 1T

• Related wiring harness

Headlight switch signal (LO)

Front body control module (FBCM)

Light switch at position other than HEAD and passing

B+

• Light switch

• Start stop unit

― Terminal 1A

― Terminal 1B

― Terminal 2W

• Related wiring harness

Light switch at HEAD position

1.0 or less

Cruise control switch signal

Cruise control switch

OFF/CANCEL switch is pressed

Approx. 0.0

• Clock spring

• Cruise control switch

• Start stop unit

― Terminal 1A

― Terminal 1B

― Terminal 2W

• Related wiring harness

SET/ - switch is pressed

Approx. 0.3

RESUME/ + switch is pressed*3

Approx. 0.7

SET/ + switch is pressed

ON/ MODE switch is pressed*3

Approx. 1.0

ON switch is pressed

RESUME switch is pressed

Approx. 1.5

DISTANCE+ switch is pressed

Approx. 1.9

DISTANCE- switch is pressed

Approx. 2.4

Except above

Approx. 3.7

Cruise control switch ground

Cruise control switch

Under any condition

1.0 or less

• Clock spring

• Cruise control switch

• Related wiring harness

1AA

Steering switch signal

Steering switch

INFO button is pressed

Approx. 2.3

• Clock spring

• Steering switch

• Start stop unit

― Terminal 1A

― Terminal 1B

― Terminal 2W

• Related wiring harness

Except above

Approx. 3.4

1AB

Steering switch ground

Steering switch

Under any condition

1.0 or less

Start stop unit

― Terminal 1AF

― Terminal 2B

1AC

PATS+

Coil antenna (push button start)

Because this terminal is for communication, determination using terminal voltage inspection is not possible.

1AE

PATS-

Coil antenna (push button start)

Because this terminal is for communication, determination using terminal voltage inspection is not possible.

1AF

GROUND

Body ground

Under any condition

1.0 or less

• Body ground

• Related wiring harness

GROUND

Body ground

Under any condition

1.0 or less

• Body ground

• Related wiring harness

GROUND

Body ground

Under any condition

1.0 or less

• Body ground

• Related wiring harness

ACC relay control

• ACC relay

• Outlet relay

Switch the ignition to ACC or ON (engine off or on)

B+

• Start stop unit

― Terminal 1A

― Terminal 1H

― Terminal 2J

― Terminal 2W

• Related wiring harness

Ignition switched OFF (LOCK)

1.0 or less

IG2 relay control

Front body control module (FBCM)

Ignition switched ON (engine off)

B+

• Start stop unit

― Terminal 1A

― Terminal 1B

― Terminal 1H

― Terminal 2J

― Terminal 2W

• Related wiring harness

Ignition switched OFF (LOCK) or at ACC

1.0 or less

—

2F^*1

LF control unit communication

LF control unit

Because this terminal is for communication, determination using terminal voltage inspection is not possible.

Shift lock

Shift lock solenoid

Ignition switch ON (engine off or on)

Selector lever at position except P

B+

• Shift lock solenoid

• ENGINE.IG1 7.5 A fuse

• IG1 relay

• Related wiring harness

Selector lever at P position and brake pedal depressed

1.0 or less

2H^*1

LF control unit communication

LF control unit

Because this terminal is for communication, determination using terminal voltage inspection is not possible.

2I^*2

Keyless antenna (inside vehicle, center)

Because this terminal is for communication, determination using terminal voltage inspection is not possible.

Push button start 2

Push button start

Push button start pressed

1.0 or less

• Push button start

• Start stop unit

― Terminal 1A

― Terminal 1B

― Terminal 2W

• Related wiring harness

Push button start not pressed

B+

2K^*2

Keyless antenna (inside vehicle, center)

Because this terminal is for communication, determination using terminal voltage inspection is not possible.

2L^*2

Shield ground

Under any condition

1.0 or less

Start stop unit

― Terminal 1AF

― Terminal 2B

HS-CAN_H

CAN system related module

Because this terminal is for communication, determination using terminal voltage inspection is not possible.

HS-CAN_L

CAN system related module

Because this terminal is for communication, determination using terminal voltage inspection is not possible.

Keyless receiver power supply

Keyless receiver

Under any condition

Approx. 5

• Keyless receiver

• Start stop unit

― Terminal 1A

― Terminal 1B

― Terminal 2W

• Related wiring harness

Keyless receiver communication

Keyless receiver

Because this terminal is for communication, determination using terminal voltage inspection is not possible.

IG1 relay control

IG1 relay

Ignition switched ON (engine off)

B+

• Start stop unit

― Terminal 1A

― Terminal 1H

― Terminal 2J

― Terminal 2W

• Related wiring harness

Ignition switched OFF (LOCK) or at ACC

1.0 or less

Starter relay

When cranking

B+

• Starter relay

• PCM

― Terminal 2BF

• Start stop unit

― Terminal 1B

• Related wiring harness

Except above^*4

1.0 or less, or B+^*4

Power supply

AT 15 A fuse

Under any condition

B+

• AT 15 A fuse

• Related wiring harness

Power supply (ESCL)

ESCL 15 A fuse

Under any condition

B+

• ESCL 15 A fuse

• CABIN. +B 50 A fuse