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:
Components
COMPONENTS ILLUSTRATION *A w/ Power Back Door *B w/o Power Back Door *1 BACK DOOR FINISH COVER LH *2 BACK DOOR FINISH COVER RH *3 BACK DOOR LOCK COVER *4 BACK DOOR SIDE GARNISH LH *5 BACK DOOR SIDE GARNISH RH *6 BACK DOOR TRIM BASE *7 BACK DOOR TRIM BOAR
Front Camera Feedback Malfunction (C1681)
DESCRIPTION This DTC is stored if the parking assist ECU judges as a result of its self check that a synchronization problem is occurring in the image signal sent from the front television camera assembly to the parking assist ECU. DTC No. Detection Item DTC Detection Condition Trouble Area
