2010 Lexus Truck RX 350 AWD V6-3.5L (2GR-FE) U CODE Page 312

B -- CHECK FOR CAN MS BUS BRANCH WIRE

A -- REPLACE CAN NO. 6 JUNCTION CONNECTOR

10. CHECK FOR CAN MS BUS BRANCH WIRE

(a) Reconnect the connector for the short-circuited branch wire to the CAN junction connector (the connector that caused the bus wire

resistance to become normal (between 54 and 69 Ohms) when it was disconnected).

(b) Disconnect the connector that includes terminals CANH and CANL from the ECU to which the short-circuited branch wire is

connected.

(c) Measure the resistance according to the value(s) in the table below.

Standard Resistance:

Text in Illustration

HINT

If the resistance becomes normal (between 54 and 69 Ohms) when the connector is disconnected from the ECU, there may be a

short in the ECU.

NG -- REPAIR OR REPLACE CAN MS BUS BRANCH WIRE OR CONNECTOR

OK -- REPLACE CORRESPONDING ECU

11. CHECK FOR SHORT IN CAN MS BUS WIRES (MAIN BODY ECU)

(a) Reconnect the CAN No. 6 junction connectors.

(b) Disconnect the main body ECU connector.

Text in Illustration

(c) Measure the resistance according to the value(s) in the table below.