2010 Lexus Truck RX 350 AWD V6-3.5L (2GR-FE) U CODE Page 243

due to vibration of the vehicle. In such a case, wiggling the ECUs or wire harness while performing the inspection below may help

determine the cause of the malfunction.

PROCEDURE

1. CHECK CAN NO. 2 BUS WIRE

(a) Turn the engine switch off.

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

Standard Resistance:

Text in Illustration

(c) Disconnected the cable from the negative (-) battery terminal.

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

Standard Resistance:

Result:

D -- CHECK FOR SHORT IN CAN NO. 2 BUS WIRE (POWER MANAGEMENT CONTROL ECU)

C -- CHECK FOR SHORT IN CAN NO. 2 BUS WIRE (POWER MANAGEMENT CONTROL ECU)

B -- CHECK FOR OPEN IN CAN NO. 2 BUS MAIN WIRE (POWER MANAGEMENT CONTROL ECU MAIN WIRE)

A -- REPLACE POWER MANAGEMENT CONTROL ECU

2. CHECK FOR OPEN IN CAN NO. 2 BUS MAIN WIRE (POWER MANAGEMENT CONTROL ECU MAIN WIRE)

(a) Disconnect the power management control ECU connector.