Terminals Of Ecu
- TERMINALS OF ECU CONNECTOR TERMINALS REFERENCE TABLE
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 TRC+ (8) Kinetic suspension output NEO (10) Center diff. lock indicator light input CANH (11) CAN communication line H SP1 (12) Speed signal output for combination meter D/G (13) Diagnosis tester communication line P (14) Shift position indicator P signal input INFR (15)(*1) Electronic modulated suspension demand 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) Transfer indicator (L4) switch input TRC- (22) Kinetic suspension output TS (24) Sensor test terminal (Signal check switch) input CANL (25) CAN communication line L EXI (27) Center diff. lock switch input PKB (28) Parking brake switch input WA (29) ABS warning light output BZ (30) Skid control buzzer output +BS (31) Power supply for solenoid GND2 (32) Skid control ECU ground HDCW (33) Downhill assist control indicator light output IND (34) SLIP indicator light output WT (35) VSC OFF indicator light output VSCW (36) VSC TRAC warning light output FRO (37) (*1) Front RH wheel speed output FLO (38) (*1) Front LH wheel speed output LBL (41) Brake fluid level warning switch input WFSE (42) Write flash enable input CSW (43)(*1) Suspension control ECU monitor input HDCS (44) Downhill assist control switch input STP2 (45) Stop light switch input IG1 (46) IG1 power supply Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
CONNECTOR TERMINALS REFERENCE TABLESymbols (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): Electronic modulated suspension and rear air suspension system
- TERMINAL INSPECTION
Disconnect the connector and measure the voltage or resistance on the wire harness side.
HINT:
Voltage cannot be measured with the connector connected to the skid control ECU as the connector is watertight.
Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
CONNECTOR TERMINALS REFERENCE TABLESymbols (Terminal No.) Wiring Color Terminal Description Condition Specified Condition +BM1 (S37-2) - GND (S37-1, 32) (S38-4) B-Y - W-B Power supply for motor (From battery) Always 10 to 14 V STP (S37-7) - GND (S37-1, 32) (S38-4) G-Y - W-B Stop light switch input Stop light switch ON → OFF (Brake pedal depressed → released) 8 to 14 V → Below 1.5V P (S37-14) - GND (S37-1, 32) (S38-4) G-B - W-B Shift position indicator P signal input Ignition switch ON, shift P position → any shift position except P 8 to 14 V → Below 1.5 V PKB (S37-28) - GND (S37-1, 32) (S38-4) LG - W-B Parking brake switch input Ignition switch ON, parking brake switch ON → OFF Below 1.5 V → 10 to 14 V +BS (S37-31) - GND (S37-1, 32) (S38-4) Y - W-B Power supply for solenoid (From battery) Always 10 to 14 V LBL (S37-41) - GND (S37-1, 32) (S38-4) LG - W-B Brake fluid level warning switch input Brake fluid level is - 5 mm from the minimum level → maximum level Below 1 Ω → 1.9 to 2.1 kΩ STP2 (S37-45) - GND (S37-1, 32) (S38-4) G - W-B Stop light switch input Stop light switch ON → OFF (Brake pedal depressed → released) 8 to 14 V → Below 1.5 V IG1 (S37-46) - GND (S37-1, 32) (S38-4) B-R - W-B IG1 power supply Ignition switch OFF → ON Below 1 V → 10 to 14 V IG2 (S38-1) - GND (S37-1, 32) (S38-4) B-O - W-B IG2 power supply Ignition switch OFF → ON Below 1 V → 10 to 14 V +BM2 (S38-2) - GND (S37-1, 32) (S38-4) B-Y - W-B Power supply for motor (From battery) Always 10 to 14 V