Terminals Of Ecu
- CHECK DRIVER SIDE JUNCTION BLOCK
- Disconnect the 1A, 1B, 1D and 1E junction block connectors.
- Measure the resistance and voltage of the wire harness side connectors.CONNECTOR TERMINAL REFERENCE CHART
Symbols (Terminal No.) Wiring Color Terminal Description Condition Specified Condition ECUB (1A-30) - Body ground R - Body ground +B power supply Always 10 to 14 V SIG (1B-1) - Body ground W - Body ground Ignition power supply Power switch OFF 10 kΩ or higher Power switch ON (IG) Below 1 Ω GND (1E-17) - Body ground W - B Body ground Ground Ground Below 1 kΩ KSW (1E-26) - Body ground Y - Body ground Halfway switch input No key in key slot 10 kΩ or higher Key in key slot Below 1 Ω DTCY (1D-21) - Body ground V - Body ground Door courtesy switch input Driver side door CLOSED 10 kΩ or higher Driver side door OPEN Below 1 Ω If the result is not as specified, there may be a malfunction on the wire harness side.
- CHECK TRANSPONDER KEY ECU
Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
- Disconnect the T5 ECU connector.
- Measure the voltage and resistance of the wire harness side connector.CONNECTOR TERMINAL REFERENCE CHART
Symbols (Terminal No.) Wiring Color Terminal Description Condition Specified Condition CPUB (T5-3) - Body ground L - Body ground IG power supply Always 10 to 14 V ACC (T5-12) -Body ground P - Body ground ACC power supply Power switch OFF 10 to 14 V Power switch ON (ACC) 0 V GND (T5-22) - Body ground W-B - Body ground Ground Always Below 1 Ω CUWS (T5-5) - Body ground B - Body ground Halfway switch input No key in key slot 10 kΩ or higher Key in key slot Below 1 Ω If the result is not as specified, there may be a malfunction on the wire harness side.