Wednesday, January 16, 2019

2010 Lexus Truck RX 350 AWD V6-3.5L (2GR-FE) C CODE Page 622


The normal condition value is displayed on the Techstream.



NG -- CHECK HARNESS AND CONNECTOR (POWER STEERING ECU - BATTERY AND BODY GROUND)



OK -- REPLACE POWER STEERING ECU See: Relays and Modules/Relays and Modules - Steering and Suspension/Relays and



Modules - Steering/Steering Control Module/Service and Repair/Removal



2. CHECK HARNESS AND CONNECTOR (POWER STEERING ECU - BATTERY AND BODY GROUND)



(a) Disconnect the connector from the power steering ECU.



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



Standard Voltage:



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



Standard Resistance:



Text in Illustration



NG -- REPAIR OR REPLACE HARNESS OR CONNECTOR



OK -- REPLACE POWER STEERING ECU See: Relays and Modules/Relays and Modules - Steering and Suspension/Relays and



Modules - Steering/Steering Control Module/Service and Repair/Removal



Up to 08/2009



POWER ASSIST SYSTEMS: POWER STEERING SYSTEM: C1521,C1531-C1534,C1554: Motor Circuit Malfunction



DESCRIPTION



If the power steering ECU detects these DTCs, it will shut off the motor relay circuit (built into the power steering ECU) and stop power assist.



However, power assist continues if DTC C1533 or C1534 is stored.

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