Terminals Of Ecu

WARNING: This page is about a different car, the 2006 Toyota Tundra and 2005 Toyota Tundra. However, it is still accessible from the selected car via links, so may be relevant.

TERMINALS OF ECU

Fig 1: Identifying Skid Control ECU Connector Terminals (S29)

Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

TERMINALS DESCRIPTION

Symbols (Terminal No.)	Terminal Description
GND1 (1)	Skid control ECU ground
+BM1 (2)	Power supply for motor
FR+ (3)	Front RH wheel speed sensor power supply output
FL- (4)	Front LH wheel speed sensor input
RR+ (5)	Rear RH wheel speed sensor power supply output
RL- (6)	Rear LH wheel speed sensor input
STP (7)	Stop light switch input
CANH (11)	CAN communication line H
SP1 (12)	Speed signal output for combination meter
D/G (13)	Diagnosis tester communication line
P (14)(*3)	Shift position indicator P signal input
INFR (15)(*1)	AUTO LSD indicator light output
STPO (16)	Stop light operation relay output
FR- (17)	Front RH wheel speed sensor input
FL+ (18)	Front LH wheel speed sensor power supply output
RR- (19)	Rear RH wheel speed sensor input
RL+ (20)	Rear LH wheel speed sensor power supply output
EXI4 (21)(*2)	Detection (L4) switch input
TS (24)	Sensor test terminal (Sensor check switch) input
CANL (25)	CAN communication line L
EXI (27)(*2)	4WD switch input
PKB (28)	Parking brake switch input
WA (29)	ABS warning light output
BZ (30)	Buzzer output
+BS (31)	Power supply for solenoid
GND 2 (32)	Skid control ECU ground
IND (34)	SLIP Indicator light output
WT (35)(*2)	VSC OFF indicator light output
VSCW (36)	VSC TRAC warning light output
LBL (41)	Brake fluid level warning switch input
WFSE (42)	Write flash enable input
CSW (43)(*1)	AUTO LSD switch input
STP2 (45)	Stop light switch input
IG1 (46)	IG1 power supply

Fig 2: Identifying Skid Control ECU Connector Terminals (S30)

Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

TERMINALS DESCRIPTION

Symbols (Terminal No.)	Terminal Description
IG2 (1)	IG2 power supply
+BM2 (2)	Power supply for motor
BRL (3)	BRAKE warning light output
GND3 (4)	Skid control ECU ground

(*1): 2WD

(*2): 4WD

(*3): A/T

TERMINAL INSPECTION
Disconnect the connector and measure the voltage or resistance on the wire harness side.

HINT:

Voltage can not be measured with the connector connected to the skid control ECU as the connector is water resistance.

Fig 3: Skid Control ECU Connector Terminals (S29)
Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

Fig 4: Terminals Voltage And Resistance Conditions
Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002