Terminals Of Ecu

HINT:

Inspect the connectors from the back side while the connectors are connected.

CHECK SUSPENSION CONTROL ECU

TERMINAL DESCRIPTION SPECIFIED CONDITION TABLE

Terminal No. (Symbols)	Wiring Color	Terminal Description	Condition	Specified Condition
L88-1 (B) - L88-4 (GND)	W - W-B	IG power supply	Engine switch on (IG)	10 to 14 V
L88-4 (GND) - Body ground	W-B - Body ground	Ground	Always	Below 1 Ω
L88-5 (SLEX) - L88-4 (GND)	L - W-B	Exhaust valve	Engine switch on (IG)	Below 1 V
L88-5 (SLEX) - L88-4 (GND)	L - W-B	Exhaust valve	Engine idling, height control switch from "HEIGHT HIGH" to normal	8 V or more
L88-6 (RC) - L88-4 (GND)	O - W-B	Suspension control relay	Engine switch on (IG)	Below 1 V
L88-6 (RC) - L88-4 (GND)	O - W-B	Suspension control relay	Engine idling, height control switch from normal to "HEIGHT HIGH" during compressor operation	8 V or more
L88-7 (CA1H) - L88-8 (CA1L)	B-W	CAN communication line	Engine switch off	54 to 69 Ω
L88-14 (TD) - L88-4 (GND)	O - W-B	Height control is not operating	Engine switch on (IG)	10 to 14 V
L88-16 (SLFR) - L88-4 (GND)	R - W-B	Height control valve (for Front RH)	Engine switch on (IG)	Below 1 V
L88-16 (SLFR) - L88-4 (GND)	R - W-B	Height control valve (for Front RH)	Engine idling, height control switch from normal to "HEIGHT HIGH" or reverse	8 V or more
L88-17 (SLFL) - L88-4 (GND)	W - W-B	Height control valve (for Front LH)	Engine switch on (IG)	Below 1 V
L88-17 (SLFL) - L88-4 (GND)	W - W-B	Height control valve (for Front LH)	Engine idling, height control switch from normal to "HEIGHT HIGH" or reverse	8 V or more
L88-18 (SBL1) - L88-4 (GND)	R - W-B	Height control sensor power source (for Front LH)	Engine switch on (IG)	4.5 to 5.5 V
L88-20 (SBR1) - L88-4 (GND)	V - W-B	Height control sensor power source (for Front RH)	Engine switch on (IG)	4.5 to 5.5 V
L88-21 (SGR1) - L88-4 (GND)	R - W-B	Height control sensor ground (for Front RH)	Always	Below 1 Ω
L88-22 (SGL1) - L88-4 (GND)	LG - W-B	Height control sensor ground (for Front LH)	Always	Below 1 Ω
L88-25 (SLRL) - L88-4 (GND)	G - W-B	Height control valve (for Rear LH)	Engine switch on (IG)	Below 1 V
L88-25 (SLRL) - L88-4 (GND)	G - W-B	Height control valve (for Rear LH)	Engine idling, height control switch from normal to "HEIGHT HIGH" or reverse	8 V or more
L88-26 (SLRR) - L88-4 (GND)	Y - W-B	Height control valve (for Rear RH)	Engine switch on (IG)	Below 1 V
L88-26 (SLRR) - L88-4 (GND)	Y - W-B	Height control valve (for Rear RH)	Engine idling, height control switch from normal to "HEIGHT HIGH" or reverse	8 V or more
A39-3 (FBR+) - L88-4 (GND)	R - W-B	Suspension control actuator (for Front RH)	Engine switch off	12.0 to 12.8 Ω
A39-4 (FBR-) - L88-4 (GND)	LG - W-B	Suspension control actuator (for Front RH)	Engine switch off	12.0 to 12.8 Ω
A39-9 (FAR+) - L88-4 (GND)	O - W-B	Suspension control actuator (for Front RH)	Engine switch off	12.0 to 12.8 Ω
A39-11 (FAR-) - L88-4 (GND)	R - W-B	Suspension control actuator (for Front RH)	Engine switch off	12.0 to 12.8 Ω
A39-13 (FAL+) - L88-4 (GND)	L - W-B	Suspension control actuator (for Front LH)	Engine switch off	12.0 to 12.8 Ω
A39-14 (FAL-) - L88-4 (GND)	R - W-B	Suspension control actuator (for Front LH)	Engine switch off	12.0 to 12.8 Ω
A39-15 (FBL+) - L88-4 (GND)	W - W-B	Suspension control actuator (for Front LH)	Engine switch off	12.0 to 12.8 Ω
A39-16 (FBL-) - L88-4 (GND)	O - W-B	Suspension control actuator (for Front LH)	Engine switch off	12.0 to 12.8 Ω
A39-17 (RM+) - L88-4 (GND)	Y - W-B	Motor lock (+)	Engine idling, height control switch from normal to "HEIGHT HIGH" during compressor operation	Below 1 V
A39-17 (RM+) - L88-4 (GND)	Y - W-B	Motor lock (+)	Engine idling, height control compressor not operating	8 V OR higher
A39-18 (RM-) - L88-4 (GND)	B - W-B	Motor lock (-)	Always	Below 1 Ω
A39-19 (SHR2) - L88-4 (GND)	LG - W-B	Height control sensor (for rear LH)	Engine switch on (IG)	0.5 to 4.5 V
A39-19 (SHR2) - L88-4 (GND)	LG - W-B	Height control sensor (for rear LH)	Engine switch on (IG) Engine idling, completion of vehicle height control from "HEIGHT HIGH" to normal	Approx. 2.5 V
A39-20 (SHFR) - L88-4 (GND)	B - W-B	Height control sensor (for Front RH)	Engine switch on (IG)	0.5 to 4.5 V
A39-20 (SHFR) - L88-4 (GND)	B - W-B	Height control sensor (for Front RH)	Engine idling, completion of vehicle height control from "HEIGHT HIGH" to normal	Approx. 2.5 V
A39-21 (SHF2) - L88-4 (GND)	L - W-B	Height control sensor (for Front LH)	Engine switch on (IG)	0.5 to 4.5 V
A39-21 (SHF2) - L88-4 (GND)	L - W-B	Height control sensor (for Front LH)	Engine idling, completion of vehicle height control from "HEIGHT HIGH" to normal	Approx. 2.5 V
A39-22 (SHFL) - L88-4 (GND)	L - W-B	Height control sensor (for Front LH)	Engine switch on (IG)	0.5 to 4.5 V
A39-22 (SHFL) - L88-4 (GND)	L - W-B	Height control sensor (for Front LH)	Engine idling, completion of vehicle height control from "HEIGHT HIGH" to normal	Approx. 2.5 V
A39-23 (SBL3) - L88-4 (GND)	BR - W-B	Height control sensor power source (for AFS ECU)	Engine switch on (IG)	4.5 to 5.5 V
A39-24 (SGL3) - L88-4 (GND)	GR - W-B	Height control sensor ground (for AFS ECU)	Always	Below 1 Ω
R1-3 (RAR-) - L88-4 (GND)	G - W-B	Suspension control actuator (for Rear RH)	Engine switch off	12.0 to 12.8 Ω
R1-4 (RBR+) - L88-4 (GND)	LG - W-B	Suspension control actuator (for Rear RH)	Engine switch off	12.0 to 12.8 Ω
R1-5 (RBR-) - L88-4 (GND)	P - W-B	Suspension control actuator (for Rear RH)	Engine switch off	12.0 to 12.8 Ω
R1-6 (RAL+) - L88-4 (GND)	L - W-B	Suspension control actuator (for Rear LH)	Engine switch off	12.0 to 12.8 Ω
R1-7 (RAL-) - L88-4 (GND)	G - W-B	Suspension control actuator (for Rear LH)	Engine switch off	12.0 to 12.8 Ω
R1-8 (RBL+) - L88-4 (GND)	O - W-B	Suspension control actuator (for Rear LH)	Engine switch off	12.0 to 12.8 Ω
R1-11 (SGFL) - L88-4 (GND)	L - W-B	Acceleration sensor (for Front LH)	Engine switch on (IG), keep the vehicle still without any vertical movement for 1 second	Approx. 2.5 V
R1-12 (SGR3) - L88-4 (GND)	LG - W-B	Acceleration sensor ground (for Rear)	Always	Below 1 Ω
R1-13 (RAR+) - L88-4 (GND)	Y - W-B	Suspension control actuator (for Rear RH)	Engine switch off	12.0 to 12.8 Ω
R1-15 (SBR3) - L88-4 (GND)	O - W-B	Acceleration sensor power source (for Rear)	Engine switch on (IG)	4.5 to 5.5 V
R1-16 (SBL) - L88-4 (GND)	R - W-B	Acceleration sensor power source (for Front LH)	Engine switch on (IG)	4.5 to 5.5 V
R1-20 (RBL-) - L88-4 (GND)	BR - W-B	Suspension control actuator (for Rear LH)	Engine switch off	12.0 to 12.8 Ω
R1-21 (CA2L) - R1-22 (CA2H)	W-B	CAN communication line	Engine switch off	54 to 69 Ω
R1-23 (SGL2) - L88-4 (GND)	GR - W-B	Height control sensor ground (for Rear LH)	Always	Below 1 Ω
R1-24 (SBL2) - L88-4 (GND)	BR - W-B	Height control sensor power source (for Rear LH)	Engine switch on (IG)	4.5 to 5.5 V
R1-25 (SGR2) - L88-4 (GND)	V - W-B	Height control sensor ground (for Rear RH)	Always	Below 1 Ω
R1-26 (SBR2) - L88-4 (GND)	B - W-B	Height control sensor power source (for Rear RH)	Engine switch on (IG)	4.5 to 5.5 V
R1-27 (SGRR) - L88-4 (GND)	BR - W-B	Acceleration sensor (for Rear)	Engine switch on (IG), keep the vehicle still without any vertical movement for 1 second	Approx. 2.5 V
R1-28 (SHRR) - L88-4 (GND)	p. W-B	Height control sensor (for Rear RH)	Engine switch on (IG)	0.5 to 4.5 V
R1-28 (SHRR) - L88-4 (GND)	p. W-B	Height control sensor (for Rear RH)	Engine idling, completion of vehicle height control from "HEIGHT HIGH" to normal	Approx. 2.5 V
R1-29 (SGL) - L88-4 (GND)	V - W-B	Acceleration sensor ground (for Front LH)	Always	Below 1 Ω
R1-30 (SHRL) - L88-4 (GND)	LG - W-B	Height control sensor (for Rear LH)	Engine switch on (IG)	0.5 to 4.5 V
R1-30 (SHRL) - L88-4 (GND)	LG - W-B	Height control sensor (for Rear LH)	Engine idling, completion of vehicle height control from "HEIGHT HIGH" to normal	Approx. 2.5 V

Fig 1: Identifying Suspension Control ECU Connector Terminals