STOP AND START SYSTEM(for 3ZR-FAE)

Disconnect the A86, A66 and G87 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
A86-1 (BIN2) - Body ground	R - Body ground	Battery	Always	9.5 to 14 V
A86-2 (GND2) - Body ground	W-B - Body ground	Ground	Always	Below 1 Ω
A86-3 (BIN1) - Body ground	L - Body ground	Battery	Always	9.5 to 14 V
A86-8 (GND1) - Body ground	W-B - Body ground	Ground	Always	Below 1 Ω
A66-1 (+B) - Body ground	B - Body ground	Power source of engine stop and start ECU	Ignition switch ON	9.5 to 14 V
A66-6 (DGND) - Body ground	W-B - Body ground	Ground	Always	Below 1 Ω
A66-10 (NE) - Body ground	P - Body ground	Engine speed signal from ECM	Always	10 kΩ or higher
G87-13 (CANH) - Body ground	LG - Body ground	CAN communication	Always	200 Ω or higher
G87-14 (CANL) - Body ground	W - Body ground	CAN communication	Always	200 Ω or higher
G87-18 (IG2) - Body ground	V - Body ground	Ignition switch signal	Ignition switch ON	9.5 to 14 V
G87-19 (ACC) - Body ground	for LHD: L - Body ground for RHD: W - Body ground	Ignition switch signal	Ignition switch ACC	9.5 to 14 V
G87-21 (IG1) - Body ground	L - Body ground	Ignition switch signal	Ignition switch ON	9.5 to 14 V

Reconnect the A86, A66 and G87 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
A86-6 (OP21) - A66-6 (DGND)*1	R - W-B	Oil pump assembly with motor (continuously variable transaxle assembly) drive power source signal	Either of the following conditions is met: Engine stopped by stop and start control Ignition switch ON (engine not running) and Active Test "AT Oil Pump (Lo)" being performed	10.5 to 16 V
A66-3 (BRE2) - Body ground	G - Body ground	Ground (vacuum sensor assembly (brake booster pressure sensor))	Always	Below 1 Ω
A66-4 (NPS) - A66-6 (DGND)*2	LG - W-B	Neutral position switch signal	Ignition switch ON Shift lever in neutral	8.1 to 12 V
A66-4 (NPS) - A66-6 (DGND)*2	LG - W-B	Neutral position switch signal	Ignition switch ON Shift lever in any other than neutral	0 to 5.2 V
A66-7 (BNT1) - A66-6 (DGND)	R - W-B	Engine hood courtesy switch (Hood lock assembly) signal	Ignition switch ON Engine stopped Engine hood closed	0 to 1.5 V
A66-7 (BNT1) - A66-6 (DGND)	R - W-B	Engine hood courtesy switch (Hood lock assembly) signal	Ignition switch ON Engine stopped Engine hood open	8 to 14 V
A66-9 (OPM1) - A66-6 (DGND)*1	LG - W-B	Oil pump assembly with motor (continuously variable transaxle assembly) directions signal	Either of the following conditions is met: Engine stopped by stop and start control Ignition switch ON (engine not running) and Active Test "AT Oil Pump (Lo)" being performed	Pulse generation (see waveform 1)
A66-10 (NE) - A66-6 (DGND)	P - W-B	Engine speed signal from ECM	Idling after engine warmed up	Pulse generation (see waveform 2)
A66-11 (CLU) - A66-6 (DGND)*2	L - W-B	Clutch start switch assembly (for upper) signal	Ignition switch ON Clutch pedal released	8 to 14 V
A66-11 (CLU) - A66-6 (DGND)*2	L - W-B	Clutch start switch assembly (for upper) signal	Ignition switch ON Clutch pedal fully depressed	Below 1.5 V
A66-13 (PB) - A66-3 (BRE2)	SB - G	Vacuum sensor assembly (brake booster pressure sensor) signal	Ignition switch ON Absolute pressure of 40 kPa 40 kPa (0.4 kgf/cm², 5.8 psi) applied to vacuum sensor assembly (brake booster pressure sensor)	1.6 to 2.0 V
			Ignition switch ON Absolute pressure of 60 kPa (0.6 kgf/cm², 8.7 psi) applied to vacuum sensor assembly (brake booster pressure sensor)	2.2 to 2.6 V
			Ignition switch ON Atmospheric pressure applied to vacuum sensor assembly (brake booster pressure sensor)	3.4 to 3.8 V
A66-14 (BRVC) - A66-6 (DGND)	P - W-B	Vacuum sensor assembly (brake booster pressure sensor) power supply	Ignition switch ON Engine stopped	4.5 to 5.5 V
A66-17 (CLL) - A66-6 (DGND)	W - W-B	Park/neutral position switch assembly signal*1	Ignition switch ON Shift lever not in P or N	8 to 14 V
		Park/neutral position switch assembly signal*1	Ignition switch ON Shift lever in P or N	Below 3.0 V
		Clutch start switch assembly (for lower) signal*2	Ignition switch ON Clutch pedal released	8 to 14 V
		Clutch start switch assembly (for lower) signal*2	Ignition switch ON Clutch pedal fully depressed	Below 1.5 V
A66-21 (STA) - A66-6 (DGND)	LG - W-B	Starter pinion operation signal	Cranking	6.0 V or more
A66-23 (STA2) - A66-6 (DGND)*1	V - W-B	Starter motor operation signal	Cranking	6.0 V or more
A66-27 (NOPM) - A66-6 (DGND)*1	G - W-B	Oil pump assembly with motor (continuously variable transaxle assembly) speed signal	Either of the following conditions is met: Engine stopped by stop and start control Ignition switch ON (engine not running) and Active Test "AT Oil Pump (Lo)" being performed	Pulse generation (see waveform 3)
G87-1 (IG31) - A66-6 (DGND)	L - W-B	Backup boost converter signal	Ignition switch ON	10.5 to 16 V
G87-2 (B41) - A66-6 (DGND)	SB - W-B	Backup boost converter signal	Always	10.5 to 16 V
G87-3 (IG41) - A66-6 (DGND)	L- W-B	Backup boost converter signal	Ignition switch ON	10.5 to 16 V
G87-5 (ECAN) - A66-6 (DGND)	R - W-B	Stop and start system cancel switch (Combination switch assembly) signal	Ignition switch ON Stop and start system cancel switch (Combination switch assembly) pressed	0 to 1.5 V
G87-5 (ECAN) - A66-6 (DGND)	R - W-B		Ignition switch ON Stop and start system cancel switch (Combination switch assembly) not pressed	8 to 14 V
G87-6 (IG11) - A66-6 (DGND)	L - W-B	Backup boost converter signal	Ignition switch ON	10.5 to 16 V
G87-10 (IG12) - A66-6 (DGND)	P - W-B	Backup boost converter signal	Ignition switch ON	10.5 to 16 V
G87-12 (B42) - A66-6 (DGND)	SB - W-B	Backup boost converter signal	Always	10.5 to 16 V
G87-18 (IG2) - A66-6 (DGND)	V - W-B	Ignition switch signal	Ignition switch ACC	Below 1 V
G87-18 (IG2) - A66-6 (DGND)	V - W-B	Ignition switch signal	Ignition switch ON	9.5 to 14 V
G87-19 (ACC) - A66-6 (DGND)	for LHD: L - W-B for RHD: W - W-B	Ignition switch signal	Ignition switch off	Below 1 V
G87-19 (ACC) - A66-6 (DGND)	for LHD: L - W-B for RHD: W - W-B	Ignition switch signal	Ignition switch ACC	9.5 to 14 V
G87-21 (IG1) - A66-6 (DGND)	L - W-B	Ignition switch signal	Ignition switch ACC	Below 1 V
G87-21 (IG1) - A66-6 (DGND)	L - W-B	Ignition switch signal	Ignition switch ON	9.5 to 14 V
G87-24 (AC41) - A66-6 (DGND)	G - W-B	Backup boost converter signal	Ignition switch ACC	10.5 to 16 V

*1: for CVT

*2: for Manual Transaxle


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

Waveform 1

Item	Content
Tester Connection	A66-9 (OPM1) - A66-6 (DGND)
Tool Setting	5 V/DIV., 5 ms./DIV.
Condition	Either of the following conditions is met: Engine stopped by stop and start control Ignition switch ON (engine not running) and Active Test "AT Oil Pump (Lo)" being performed

Item

Content

Tester Connection

A66-9 (OPM1) - A66-6 (DGND)

Tool Setting

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

Condition

Either of the following conditions is met:

Engine stopped by stop and start control
Ignition switch ON (engine not running) and Active Test "AT Oil Pump (Lo)" being performed


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

Waveform 2

Item	Content
Tester Connection	A66-10 (NE) - A66-6 (DGND)
Tool Setting	5 V/DIV., 2 ms./DIV.
Condition	Idling after engine warmed up


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

Waveform 3

Item	Content
Tester Connection	A66-27 (NOPM) - A66-6 (DGND)
Tool Setting	5 V/DIV., 5 ms./DIV.
Condition	Either of the following conditions is met: Engine stopped by stop and start control Ignition switch ON (engine not running) and Active Test "AT Oil Pump (Lo)" being performed