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.
Click here .gif)
(a) Stop the vehicle on a level, paved surface and align the wheels straight ahead.
(b) Remove the steering pad assembly.
Click here
(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.
Click here
(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.
Click here
READ NEXT:
Torque Sensor1 (C1511-C1514,C1517)
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
Torque Sensor Zero Point Adjustment Undone (C1515,C1516)
DESCRIPTION These DTCs do not indicate a malfunction. The power steering ECU assembly stores C1515 when it determines that torque sensor zero point calibration has not been performed. The power steeri
Short in Motor Circuit (C1521-C1524,C1528,C1531-C1555)
DESCRIPTION The power steering ECU assembly detects steering force using the signal received from the steering torque sensor, and also monitors the motor circuit for errors. DTC No. Detection Ite
SEE MORE:
Parts Location
PARTS LOCATION ILLUSTRATION *1 FRONT WIPER DEICER RELAY *2 AIR CONDITIONING AMPLIFIER ASSEMBLY *3 MULTI-DISPLAY ASSEMBLY *4 RADIO RECEIVER ASSEMBLY *5 WINDSHIELD GLASS - WINDSHIELD DEICER WIRE *6 NO. 2 ENGINE ROOM RELAY BLOCK *7 DEICER FUSE *8 ECU-B NO.2 FUSE
Precaution
PRECAUTION PRECAUTIONS FOR REFRIGERANT HFO-1234yf (R1234yf) (a) Compatibility (1) The parts used in the refrigerant cycle, etc. of the HFO-1234yf (R1234yf) system are not compatible with the conventional HFC-134a (R134a) system. (b) HFO-1234yf (R1234yf) Refrigerant (1) Always use HFO-1234yf (R1234yf
