Lexus ES manuals

Lexus ES: Inspection

INSPECTION

PROCEDURE

1. INSPECT REAR HEIGHT CONTROL SENSOR SUB-ASSEMBLY LH (for 2WD)

(a) Preparation for check

(1) Confirm the standard, high and low positions of the link that will be used in the following inspection.

  • The standard position is 58° from the maximum link angle (high) and 51° from the maximum link angle (low).
  • The high position (+45°) is 13° from the maximum link angle (high).
  • The low position (-45°) is 6° from the maximum link angle (low).

*a

Standard Position

*b

Maximum Link Angle (Low)

*c

Maximum Link Angle (High)

*d

51°

*e

58°

*f

-45°

*g

+45°

*h

*i

13°

-

-

(2) Connect 3 dry cell batteries (1.5 V) in series.

NOTICE:

Do not use rechargeable batteries as they may not output a voltage of 1.5 V.

(3) Connect a positive (+) lead from the batteries to terminal 3 (SHB) and a negative (-) lead to terminal 1 (SHG).

*a

Component without harness connected

(Rear Height Control Sensor Sub-assembly LH)

*b

Low

*c

Standard Position

*d

High

*e

-45°

*f

+45°

(4) Measure the voltage between terminals 2 (SHRR) and 1 (SHG) while slowly moving the link up and down.

Standard Voltage:

Tester Connection

Condition

Specified Condition

2 (SHRR) - 1 (SHG)

+45° (High)

4.5 V

2 (SHRR) - 1 (SHG)

0° (Standard position)

2.5 V

2 (SHRR) - 1 (SHG)

-45° (Low)

0.5 V

If the result is not as specified, replace the rear height control sensor sub-assembly LH.

2. INSPECT REAR HEIGHT CONTROL SENSOR SUB-ASSEMBLY LH (for AWD)

(a) Check the rear height control sensor sub-assembly LH.

(1) Connect 3 dry batteries of 1.5 V in series.

(2) Connect the positive (+) end of the batteries to terminal 3 (SHB) of the rear height control sensor sub-assembly LH and the negative (-) end of the batteries to terminal 1 (SHG). While slowly moving the sensor link up and down, measure the voltage between terminal 2 (SHRR) and terminal 1 (SHG).

NOTICE:

  • Do not use rechargeable batteries as they may not output a voltage of 1.5 V.
  • Do not apply a voltage of more than 6 V.

*a

Component without harness connected

(Rear Height Control Sensor Sub-assembly LH)

*b

Standard position

(6.5° from horizontal position)

*c

Horizontal Position

*d

Height low (Full bound)

(18.5° from standard position)

*e

Height high (Full rebound)

(45.5° from standard position)

*f

Bound side link stop position

(85° from standard position)

*g

Rebound side link stop position

(102° from standard position)

-

-

(3) Measure the voltage according to the value(s) in the table below.

Standard Voltage:

Tester Connection

Condition

Specified Condition

If the result is not as specified, replace the rear height control sensor sub-assembly LH.

1 (SHG) - 2 (SHRR)

Link moves upward from standard position to bound side (Height low)

From 18.5° to bound side link stop position

0.5 V

18.5° (Full Bound)

1.69 V

Horizontal Position

-

2.5 V

Link moves downward from standard position to rebound side (Height high)

Standard position

2.79 V

45.5° (Full Rebound)

4.5 V

From 45.5° to rebound side link stop position

4.5 V

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