Toyota 2GR-FE Manual page 555

3
CHECK HARNESS AND CONNECTOR
Wire Harness Side:
ECM Connector (Front View)
CAN- CAN+
TCM Connector (Front View)
CAN+
OK
4
REPLACE ECM
NEXT
5
CHECK IF DTC RECURS
Result
Display (DTC Output)
No DTC
2GR-FE ENGINE CONTROL SYSTEM – SFI SYSTEM
(a) Disconnect the C56 TCM connector.
(b) Disconnect the C55 ECM connector.
(c) Measure the resistance of the wire harness side
C56-6 (CAN+) or C55-2 (CAN+) - Body ground
C56-7 (CAN-) or C55-1 (CAN-) - Body ground
NG
CAN-
C133242E02
(a) Replace the ECM (See page ES-518).
(a) Connect the intelligent tester to the DLC3.
(b) Clear the DTC.
(c) Start the engine.
(d) Read the DTCs.
U0101
B
connectors.
Standard resistance
Tester Connection
C56-6 (CAN+) - C55-2 (CAN+)
C56-7 (CAN-) - C55-1 (CAN-)
REPAIR OR REPLACE HARNESS OR
CONNECTOR
NOTICE:
Replace the ECM with a ECM from a normally
functioning vehicle of the same model.
REPLACE ECM
ES–399
Specified Condition
Below 1 Ω
Below 1 Ω
1 MΩ or more
1 MΩ or more
Proceed to
A
B
ES