Lexus NX: On-vehicle Inspection
ON-VEHICLE INSPECTION
PROCEDURE
1. INSPECT WINDSHIELD WIPER SWITCH ASSEMBLY
(a) w/o Auto Wiper System:
Check the front wiper intermittent operation.
| (1) Connect a voltmeter positive (+) lead to terminal I125-3 (+1) and a negative (-) lead to terminal I124-4 (EW). |
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(2) Turn the power switch on (IG).
(3) Turn the wiper switch to the INT position.
(4) Operate the intermittent wiper and check the voltage between terminals I125-3 (+1) and I124-4 (EW).
OK:
Voltage changes as shown in the illustration.
If the result is not as specified, replace the windshield wiper switch assembly.
(b) Check the front washer operation.
| (1) Connect a voltmeter positive (+) lead to terminal I124-7 (WF) and a negative (-) lead to terminal I124-4 (EW). |
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(2) Turn the power switch on (IG).
(3) Turn the washer switch on and off, and check the voltage between terminals I124-7 (WF) and I124-4 (EW).
OK:
Voltage changes as shown in the following illustration.
If the result is not as specified, replace the windshield wiper switch assembly.
(c) Check the rear washer operation.
| (1) Connect a voltmeter positive (+) lead to terminal I125-5 (WR) and a negative (-) lead to terminal I124-4 (EW). |
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(2) Turn the power switch on (IG).
(3) Turn the washer switch on and off, and check the voltage between terminals I125-5 (WR) and I124-4 (EW).
OK:
Voltage changes as shown in the following illustration.
If the result is not as specified, replace the windshield wiper switch assembly.
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Inspection
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Installation
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Parts Location
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