Lexus ES manuals

Lexus ES: On-vehicle Inspection

ON-VEHICLE INSPECTION

PROCEDURE

1. CHECK STEERING EFFORT (TORQUE)

NOTICE:

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 horn button 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 bolt is properly tightened.

Torque:

62 N·m {632 kgf·cm, 46 ft·lbf}

(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 steering effort (torque) with the steering wheel turned. Check in the opposite direction using the same method.

Standard Steering Effort (Reference):

5.5 N*m (56 kgf*cm, 49 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.

NOTICE:

When disconnecting the cable, some systems need to be initialized after the cable is reconnected.

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(j) Install the horn button assembly.

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READ NEXT:

 Torque Sensor1 (C1511-C1514,C1521-C1523,C1528,C1531-C1555)

DESCRIPTION While torque sensor system, motor system or ECU system malfunctions are detected, the fail-safe function suspends power assist. However, power assist continues with limited assistance amou

 Torque Sensor Zero Point Adjustment Undone (C1515)

DESCRIPTION This DTC does not indicate a malfunction. The power steering ECU (rack and pinion power steering gear assembly) stores this DTC when it determines that torque sensor zero point calibration

 Torque Sensor Zero Point Adjustment Incomplete (C1516)

DESCRIPTION This DTC does not indicate a malfunction. The power steering ECU (rack and pinion power steering gear assembly) stores this DTC when it determines that torque sensor zero point calibration

SEE MORE:

 Removal

REMOVAL CAUTION / NOTICE / HINT The necessary procedures (adjustment, calibration, initialization or registration) that must be performed after parts are removed and installed, or replaced during brake master cylinder sub-assembly removal/installation are shown below. Necessary Procedures After Part

 Suspension Control ECU Communication Stop Mode

DESCRIPTION Detection Item Symptom Trouble Area Suspension Control ECU Communication Stop Mode Any of the following conditions are met: Communication stop for "Suspension Control (Air Suspension)" is indicated on the "Communication Bus Check" screen of the Techstream. Click here

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