Terminals Of Ecu
- CHECK DRIVER SIDE JUNCTION BLOCK ASSY (BODY ECU) (LEFT SIDE)
- Disconnect the B4 body ECU connector and check the continuity of terminal of the disconnected connector.
Standard:
WIRING COLOR SYMBOL CHARTSymbols (Terminal No.) Wiring color Condition Specified condition KSW <=> Body ground (B4-19) <=> (Body ground) L <=> Body ground No key in ignition switch lock cylinder -->Yes No continuity -->Continuity HINT:
If the result is not as specified, the vehicle's side may malfunction.
- Reconnect the B4 connector and check the voltage of the wire harness side connector.
Standard:
WIRING COLOR SYMBOL CHARTSymbols (Terminal No.) Wiring color Condition Specified condition DCTY <=> Body ground (B6-1) <=> (Body ground) R-G <=> Body ground Driver's door fully closed --> Opened 10-14V-->0V HINT:
If the result is not as specified, the body ECU may malfunction.
- Disconnect the B4 body ECU connector and check the continuity of terminal of the disconnected connector.
- CHECK DRIVER SIDE JUNCTION BLOCK ASSY (BODY ECU) (REAR SIDE)
Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
- Disconnect the 2B, 2E and 2F driver side J/B connectors.
- Check the voltage and continuity of each terminal of the wire harness side connectors.
Standard:
WIRING COLOR SYMBOL CHARTSymbols (Terminal No.) Wiring color Condition Specified condition SIG <=> Body ground (2E-2) <=> (Body ground) B-G <=> Body ground Turn ignition switch OFF --> ON 0V--> 10-14V B <=> Body ground (2F-7) <=> (Body ground) R <=> Body ground Constant 10-14V SGND <=> Body ground (2B-11) <=> (Body ground) BR <=> Body ground Constant Continuity HINT:
If the result is not as specified, the vehicle's side may malfunction.
- Reconnect the 2B, 2E and 2F driver side J/B connectors.
- Check the voltage and continuity of each terminal of the wire harness side connectors.
Standard:
WIRING COLOR SYMBOL CHARTSymbols (Terminal No.) Wiring color Condition Specified condition ACC <=> Body ground (2A-2) <=> (Body ground) W <=> Body ground Turn ignition switch OFF --> ON 0V --> 10-14V GND <=> Body ground (2R-8) <=> (Body ground) W-B <=> Body ground Constant Continuity HINT:
If the result is not as specified, the driver side J/B (body ECU) may malfunction.