2010 Lexus Truck RX 350 AWD V6-3.5L (2GR-FE) C CODE Page 617

(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

From 08/2009

POWER ASSIST SYSTEMS: POWER STEERING SYSTEM: C1551: IG Power Supply Voltage Malfunction

C1551 - IG Power Supply Voltage Malfunction

DESCRIPTION

The power steering ECU distinguishes the engine switch status as on (IG) or off through the IG power source circuit.