STOP AND START SYSTEM(for 2AR-FE)

Disconnect the A59, A60 and G50 engine stop and start ECU connectors.

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

Terminal No. (Symbol)	Wiring Color	Terminal Description	Condition	Specified Condition
A59-1 (BIN2) - Body ground	B - Body ground	Battery	Always	9.5 to 14 V
A59-2 (GND2) - Body ground	W-B - Body ground	Ground	Always	Below 1 Ω
A59-3 (BIN1) - Body ground	W - Body ground	Battery	Always	9.5 to 14 V
A59-8 (GND1) - Body ground	W-B - Body ground	Ground	Always	Below 1 Ω
A60-1 (+B) - Body ground	R - Body ground	Power source of engine stop and start ECU	Engine switch on (IG)	9.5 to 14 V
A60-6 (DGND) - Body ground	W-B - Body ground	Ground	Always	Below 1 Ω
A60-10 (NE) - Body ground	GR - Body ground	Engine speed signal from ECM	Always	10 kΩ or higher
G50-13 (CANH) - Body ground	GR - Body ground	CAN communication	Always	200 Ω or higher
G50-14 (CANL) - Body ground	W - Body ground	CAN communication	Always	200 Ω or higher
G50-18 (IG2) - Body ground	G - Body ground	Engine switch signal	Engine switch on (IG)	9.5 to 14 V
G50-19 (ACC) - Body ground	R - Body ground	Engine switch signal	Engine switch on (ACC)	9.5 to 14 V
G50-20 (ILL) - Body ground	B - Body ground	Headlight dimmer switch (light control switch) tail signal input	Headlight dimmer switch (light control switch) in tail or head position	9.5 to 14 V
G50-21 (IG1) - Body ground	L - Body ground	Engine switch signal	Engine switch on (IG)	9.5 to 14 V

Reconnect the A59, A60 and G50 engine stop and start ECU connectors.

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

Terminal No. (Symbol)	Wiring Color	Terminal Description	Condition	Specified Condition
A59-6 (OP21) - A60-6 (DGND)	B - W-B	Oil pump with motor assembly drive power source signal	Either of the following conditions is met: Engine stopped by stop and start control Engine switch on (IG) (engine not running) and Active Test [Oil Pump] being performed	10.5 to 16 V
A60-7 (BNT1) - A60-6 (DGND)	SB - W-B	Engine hood courtesy switch (hood lock assembly) signal	Engine switch on (IG) Engine stopped Engine hood closed	0 to 1.5 V
A60-7 (BNT1) - A60-6 (DGND)	SB - W-B	Engine hood courtesy switch (hood lock assembly) signal	Engine switch on (IG) Engine stopped Engine hood open	8 to 14 V
A60-9 (OPM1) - A60-6 (DGND)	W - W-B	Oil pump with motor assembly directions signal	Either of the following conditions is met: Engine stopped by stop and start control Engine switch on (IG) (engine not running) and Active Test [Oil Pump] being performed	Pulse generation (see waveform 1)
A60-10 (NE) - A60-6 (DGND)	GR - W-B	Engine speed signal from ECM	Idling after engine warmed up	Pulse generation (see waveform 2)
A60-17 (CLL) - A60-6 (DGND)	W - W-B	Park/neutral position switch assembly signal	Engine switch on (IG) Shift lever not in P or N	8 to 14 V
A60-17 (CLL) - A60-6 (DGND)	W - W-B	Park/neutral position switch assembly signal	Engine switch on (IG) Shift lever in P or N	Below 3.0 V
A60-19 (DON2) - A60-6 (DGND)	P - W-B	External backup boost converter (eco run vehicle converter assembly) signal	Engine running	Pulse generation (see waveform 3)
A60-21 (STA) - A60-6 (DGND)	L - W-B	Starter pinion operation signal	Cranking	6.0 V or more
A60-23 (STA2) - A60-6 (DGND)	W - W-B	Starter motor operation signal	Cranking	6.0 V or more
A60-27 (NOPM) - A60-6 (DGND)	L - W-B	Oil pump with motor assembly speed signal	Either of the following conditions is met: Engine stopped by stop and start control Engine switch on (IG) (engine not running) and Active Test [Oil Pump] being performed	Pulse generation (see waveform 4)
G50-1 (IG31) - A60-6 (DGND)	L - W-B	Backup boost converter signal	Engine switch on (IG)	10.5 to 16 V
G50-3 (IG41) - A60-6 (DGND)	B - W-B	Backup boost converter signal	Engine switch on (IG)	10.5 to 16 V
G50-5 (ECAN) - A60-6 (DGND)	GR - W-B	Stop and start system cancel switch (combination switch assembly) signal	Engine switch on (IG) Stop and start system cancel switch (combination switch assembly) pressed	0 to 1.5 V
G50-5 (ECAN) - A60-6 (DGND)	GR - W-B		Engine switch on (IG) Stop and start system cancel switch (combination switch assembly) not pressed	8 to 14 V
G50-6 (IG11) - A60-6 (DGND)	L - W-B	Backup boost converter signal	Engine switch on (IG)	10.5 to 16 V
G50-10 (IG12) - A60-6 (DGND)	G - W-B	Backup boost converter signal	Engine switch on (IG)	10.5 to 16 V
G50-11 (B43) - A60-6 (DGND)	LA-V - W-B	Backup boost converter signal	Always	10.5 to 16 V
G50-12 (B42) - A60-6 (DGND)	LA-L - W-B	Backup boost converter signal	Always	10.5 to 16 V
G50-18 (IG2) - A60-6 (DGND)	G - W-B	Engine switch signal	Engine switch on (ACC)	Below 1 V
G50-18 (IG2) - A60-6 (DGND)	G - W-B	Engine switch signal	Engine switch on (IG)	9.5 to 14 V
G50-19 (ACC) - A60-6 (DGND)	R - W-B	Engine switch signal	Engine switch off	Below 1 V
G50-19 (ACC) - A60-6 (DGND)	R - W-B	Engine switch signal	Engine switch on (ACC)	9.5 to 14 V
G50-21 (IG1) - A60-6 (DGND)	L - W-B	Engine switch signal	Engine switch on (ACC)	Below 1 V
G50-21 (IG1) - A60-6 (DGND)	L - W-B	Engine switch signal	Engine switch on (IG)	9.5 to 14 V
G50-23 (B11) - A60-6 (DGND)	SB - W-B	Backup boost converter signal	Always	10.5 to 16 V
G50-24 (AC41) - A60-6 (DGND)	Y - W-B	Backup boost converter signal	Engine switch on (ACC)	10.5 to 16 V
G50-25 (IL41) - A60-6 (DGND)	GR - W-B	Backup boost converter signal	Headlight dimmer switch (light control switch) in tail or head position	10.5 to 16 V


*a	5 V/DIV.
*b	5 ms./DIV.

Waveform 1

Item	Content
Tester Connection	A60-9 (OPM1) - A60-6 (DGND)
Tool Setting	5 V/DIV., 5 ms./DIV.
Condition	Either of the following conditions is met: Engine stopped by stop and start control Engine switch on (IG) (engine not running) and Active Test [Oil Pump] being performed

Item

Content

Tester Connection

A60-9 (OPM1) - A60-6 (DGND)

Tool Setting

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

Condition

Either of the following conditions is met:

Engine stopped by stop and start control
Engine switch on (IG) (engine not running) and Active Test [Oil Pump] being performed


*a	5 V/DIV.
*b	2 ms./DIV.

Waveform 2

Item	Content
Tester Connection	A60-10 (NE) - A60-6 (DGND)
Tool Setting	5 V/DIV., 2 ms./DIV.
Condition	Idling after engine warmed up


*a	5 V/DIV.
*b	2 ms./DIV.

Waveform 3

Item	Content
Tester Connection	A60-19 (DON2) - A60-6 (DGND)
Tool Setting	5 V/DIV., 2 ms./DIV.
Condition	Engine running


*a	5 V/DIV.
*b	5 ms./DIV.

Waveform 4

Item	Content
Tester Connection	A60-27 (NOPM) - A60-6 (DGND)
Tool Setting	5 V/DIV., 5 ms./DIV.
Condition	Either of the following conditions is met: Engine stopped by stop and start control Engine switch on (IG) (engine not running) and Active Test [Oil Pump] being performed