Friday, January 4, 2019

2010 Lexus Truck RX 350 AWD V6-3.5L (2GR-FE) U CODE Page 242


power management control ECU monitors for malfunctions in the ECUs connected to the CAN No. 2 bus when communicating with those



ECUs. If the power management control ECU cannot receive response signals from the ECUs that have been memorized as those connected to



the CAN No. 2 bus, the power management control ECU determines that a malfunction exists.



WIRING DIAGRAM



INSPECTION PROCEDURE



NOTICE:



* Turn the engine switch off before measuring the resistances between CAN bus main wires and between CAN bus branch



wires.



* Turn the engine switch off before inspecting CAN bus wires for a ground short.



* After the engine switch is turned off, check that the key reminder warning system and light reminder warning system are not



operating.



* Before measuring the resistance, leave the vehicle as is for at least 1 minute and do not operate the engine switch, any other



switches or the doors. If any doors need to be opened in order to check connectors, open the doors and leave them open.



HINT



* Operating the engine switch, any other switches or a door triggers related ECU and sensor communication on the CAN. This



communication will cause the resistance value to change.



* Even after DTCs are cleared, if a DTC is stored again after driving the vehicle for a while, the malfunction may be occurring

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