Lexus NX: On-vehicle Inspection

ON-VEHICLE INSPECTION

PROCEDURE

1. CHECK STEERING EFFORT (TORQUE)

CAUTION:

These service operations may affect the SRS airbags. Be sure to read the precautionary notices concerning the SRS airbag system before servicing.

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(a) Stop the vehicle on a level, paved surface and align the wheels straight ahead.

(b) Remove the steering pad assembly.

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(c) Connect the cable to the negative (-) auxiliary battery terminal.

(d) Using a torque wrench, check that the steering wheel set nut is properly tightened.

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(e) Turn the power switch on (READY) so that the power steering is ready to operate.

(f) Turn the steering wheel 90 degrees to the right and check the steering effort (torque) while continuing to turn it further in the same direction.

Standard steering effort (Reference):

6.0 N*m (61 kgf*cm, 53 in.*lbf) or less

(g) Align the front wheels facing straight ahead.

(h) Turn the power switch off.

(i) Disconnect the cable from the negative (-) auxiliary battery terminal.

(j) Install the steering pad assembly.

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READ NEXT:

 Torque Sensor1 (C1511-C1514)

DESCRIPTION The torque sensor converts the steering wheel rotation torque into electric signals and sends them to the power steering ECU assembly. DTC No. Detection Item DTC Detection Condition

 Short in Motor Circuit (C1521,C1531-C1534)

DESCRIPTION DTC No. Detection Item DTC Detection Condition Trouble Area Warning Indicate Return-to-normal Condition C1521 Short in Motor Circuit Motor overcurrent Power steering

 Motor Terminal Voltage (C1524,C1555)

DESCRIPTION The power steering ECU assembly supplies current to the power steering motor assembly through the motor circuit. DTC No. Detection Item DTC Detection Condition Trouble Area Warn

SEE MORE:

 Hybrid system features

Your vehicle is a hybrid vehicle. It has characteristics different from conventional vehicles. Be sure you are closely familiar with the characteristics of your vehicle, and operate it with care. The hybrid system combines the use of a gasoline engine and an electric motor (traction motor) a

 Terminals Of Ecu

TERMINALS OF ECU *A w/ Manual (SOS) Switch - - Terminal No. (Symbol) Wiring Color Terminal Description Condition Specified Condition *1: w/ Manual (SOS) Switch *2: w/o Manual (SOS) Switch #: There is no wire color information I151-1 (GND1) - Body ground W-B - Body g

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