Ecu Connector Terminal Identification
- TERMINALS OF ECU
Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
ECU CONNECTOR TERMINALS REFERENCE CHARTSymbols (Terminal No.) Terminal Description GND2 (1) Actuator pump motor ground +BM (2) Motor relay power supply +BS (3) Solenoid valves power supply GND1 (4) Skid control ECU ground FL+ (5) Front LH (+) wheel speed signal input FL- (6) Front LH (-) wheel speed signal input RL+ (7) Front LH (+) wheel speed signal input RR- (8) Rear RH (-) wheel speed signal input FR- (9) Front RH (-) wheel speed signal input FR+ (10) Front RH (+) wheel speed signal input D/G(11) Diagnosis tester communication line RRO(13) Rear right wheel speed signal output PKB (14) Parking brake switch input CANL(15) CAN communication line L RL-(17) Rear LH (-) wheel speed signal input IG1 (18) ECU power supply RR+(19) Rear RH (+) wheel speed signal input STP (20) Stop light switch input SP1 (23) Speed signal output for speedometer RLO (24) Rear left wheel speed signal output TS (25) Sensor check input CANH (26) CAN communication line H - TERMINAL INSPECTION
- Disconnect the connector and measure the voltage or resistance on the wire harness side.
Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
HINT:
Voltage cannot be measured with the connector connected to the skid control ECU as the connector is watertight.
ECU CONNECTOR TERMINALS REFERENCE CHARTSymbols (Terminal No.) Wiring Color Terminal Description Condition Specified Condition GND2 (1) - Body ground W-B - Body ground Actuator pump motor ground Always Below 1 Ω +BM (2) - Body ground B - Body ground Motor relay power supply Always 10 to 14 Ω +BS (3) - Body ground W - Body ground Solenoid valves power supply Always 10 to 14 Ω GND1 (4) - Body ground W-B - Body ground Skid control ECU ground Always Below 1 Ω PKB (14) - Body ground L - Body ground Parking brake switch input Parking brake switch ON Below 1 Ω PKB (14) - Body ground L - Body ground Parking brake switch input Parking brake switch OFF 10 to 14 V IG1 (18) - Body ground BR - Body ground ECU power supply Ignition switch on (IG) 10 to 14 V STP (20) - Body ground L-B - Body ground Stop light switch input Stop light switch ON (Brake pedal depressed) 8 to 14 V STP (20) - Body ground L-B - Body ground Stop light switch input Stop light switch OFF (Brake pedal released) Below 3 V
- Disconnect the connector and measure the voltage or resistance on the wire harness side.