Terminals Of Ecu
- Terminals of ECU TERMINAL DESCRIPTION CHART
Symbols (Terminal No.) Terminal Description GND 2 (1) Motor relay ground BM (2) Motor relay test input FR+ (3) Front RH wheel speed signal input FL- (4) Front LH wheel speed signal input RR+ (5) Rear RH wheel speed signal input RL- (6) Rear LH wheel speed signal input TSI (7) TSI input for meter TRC+ (8) ECM communication output ENG+ (9) ECM communication input NEO (10) Engine revolution signal input CANH (11) CAN communication line SP1 (12) Speed signal output D/G (13) Diagnosis tester communication line MRF (14) Fail safe motor relay output MR (15) Motor relay output FR- (17) Front RH wheel speed signal input FL+ (18) Front LH wheel speed signal input RR- (19) Rear RH wheel speed signal input RL+ (20) Rear LH wheel speed signal input TRC- (22) ECM communication output ENG- (23) ECM communication input TS (24) Sensor check input CANL (25) CAN communication line WTIR (26) WTIR input for meter STP (27) Stop light switch input PKB (28) Parking brake switch input WA (29) ABS warning light output BZ (30) Buzzer output +BS (31) Solenoid relay power supply GND1 (32) Skid control ECU ground IND (34) SLIP Indicator light output VSCW (36) VSC warning light output P (40) P range switch input INIT (41) Tire pressure warning switch input WFSE (42) WFSE input CSW (43) TRAC OFF switch input BRL (44) BRAKE warning light output R+ (45) Power supply for motor relay IG1 (46) IG1 power supply - Terminal Inspection
- Disconnect the connector and measure the voltage 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.
TERMINAL DESCRIPTION SPECIFIED CONDITION CHART
| Symbols (Terminal No.) | Wiring Color | Terminal Description | Condition | Specified Condition |
|---|---|---|---|---|
| BM(S1-2) - GND(S1-1, 32) | B-R - W-L, W-B | Motor relay test input | IG switch ON, pump motor running | 10 to 14 V |
| TS (S1-24) - GND (S1-1, 32) | GR - W-L, W-B | Sensor check input | IG switch ON | 10 to 14 V |
| STP (S1-27) - GND (S1-1, 32) | G-W - W-L, W-B | Stop light switch input | Stop light switch ON (Brake pedal pushed) | 8 to 14 V |
| STP(S1-27) - GND (S1-1, 32) | G-W - W-L, W-B | Stop light switch input | Stop light switch OFF (Brake pedal released) | Below 1.5 V |
| PKB(S1-28) - GND (S1-1, 32) | R-W - W-L, W-B | Parking brake switch input | IG switch ON, parking brake switch ON | Below 1.5 V |
| PKB(S1-28) - GND (S1-1, 32) | R-W - W-L, W-B | Parking brake switch input | IG switch ON, parking brake switch OFF | 10 to 14 V |
| +BS (S1-31) - GND (S1-1, 32) | B - W-L, W-B | Solenoid relay power supply | Always | 10 to 14 V |
| WFSE (S1-42) - GND (S1-1, 32) | P - W-L, W-B | WFSE input | IG switch ON | 10 to 14 V |
| CSW (S1-43) - GND (S1-1, 32) | R-Y - W-L, W-B | TRAC OFF switch input | TRAC OFF switch OFF | 10 to 14 V |
| R+ (S1-45) - GND (S1-1, 32) | R - W-L, W-B | Power supply for motor relay | IG switch ON | 10 to 14 V |
| IG1 (S1-46) - GND (S1-1, 32) | B-W - W-L, W-B | IG1 power supply | IG switch ON | 10 to 14 V |