Toyota 2GR-FE Manual page 947

OK
2
CHECK DTC OUTPUT (CAN COMMUNICATION SYSTEM)
OK
3
CHECK WIRE HARNESS (MAIN BODY ECU - ECM)
Wire Harness Side:
E8
Main Body ECU
TACH
2GR-FE STARTING – SMART KEY SYSTEM
(a) Delete the DTCs (See page ST-26).
(b) Check for CAN communication system DTC U0146.
HINT:
If the DTCs for the CAN communication system
malfunction are output, inspect those DTCs first (See
page CA-31).
OK:
No DTC is output.
NG
(a) Disconnect the A55 ECM connector.
(b) Disconnect the E8 ECU connector.
(c) Measure the resistance according to the value(s) in the
table below.
GO TO CAN COMMUNICATION SYSTEM
ECM
TACH
ST–85
A55
ST
B138064E01