Tundra 2WD V8-4.6L (1UR-FE) (2010)
OK -- REPLACE BUS BUFFER ECU
25. CHECK FOR SHORT IN CAN BUS WIRES (4WD CONTROL ECU)
(a) Disconnect the A25 4WD control ECU connector.
(b) Measure the resistance according to the value(s) in the table below.
Standard resistance:
NG -- REPAIR OR REPLACE CAN BRANCH WIRE CONNECTED TO 4WD CONTROL ECU (CANH, CANL)
OK -- REPLACE 4WD CONTROL ECU
26. CHECK FOR SHORT IN CAN BUS WIRES (ECM)
(a) Disconnect the A24 ECM connector.
(b) Measure the resistance according to the value(s) in the table below.
Standard resistance:
Result
E -- REPAIR OR REPLACE CAN MAIN WIRE CONNECTED TO ECM (CANH, CANL)
D -- REPLACE ECM See: Engine Control Module/Service and Repair/Removal
C -- REPLACE ECM See: Engine Control Module/Service and Repair/Removal