Lexus NX: Inspection

Lexus NX Service Manual / Vehicle Interior / Lighting (int) / Back Door Courtesy Switch / Inspection

INSPECTION

PROCEDURE

1. INSPECT BACK DOOR LOCK ASSEMBLY (BACK DOOR COURTESY SWITCH)

(a) w/o Power Back Door:

(1) Move the back door lock assembly to the lock position.

*1	Latch
*a	Component without harness connected (Back Door Lock Assembly (Back Door Courtesy Switch))
*b	Lock
*c	Unlock

(2) Measure the resistance according to the value(s) in the table below.

Standard Resistance:

Tester Connection	Condition	Specified Condition
1 (ACT-) - 3 (D+)	Lock	10 kΩ or higher

(3) Apply battery voltage to the door lock motor and check the operation of the door lock motor.

OK:

Tester Connection	Condition	Specified Condition
2 (ACT+) - 1 (ACT-)	Battery positive (+) → 2 (ACT+) Battery negative (-) → 1 (ACT-)	Unlock

Tester Connection

Condition

Specified Condition

2 (ACT+) - 1 (ACT-)

Battery positive (+) → 2 (ACT+)

Battery negative (-) → 1 (ACT-)

Unlock

(4) Measure the resistance according to the value(s) in the table below.

Standard Resistance:

Tester Connection	Condition	Specified Condition
1 (ACT-) - 3 (D+)	Unlock	Below 1 Ω

(b) w/ Power Back Door:

(1) Apply battery voltage to the door lock motor and check the operation of the door lock motor.

OK:

Tester Connection

Condition

Specified Condition

1 (M+) - 4 (M-)

Battery positive (+) → 1 (M+)

Battery negative (-) → 4 (M-)

Latch turns to full-latch position (clockwise rotation)

1 (M+) - 4 (M-)

Battery positive (+) → 4 (M-)

Battery negative (-) → 1 (M+)

Latch turns to open-latch position (counterclockwise rotation)

Component without harness connected

(Back Door Lock Assembly (Back Door Courtesy Switch))

Clockwise

Counterclockwise

(2) Measure the resistance according to the value(s) in the table below.

Standard Resistance:

Tester Connection	Condition	Specified Condition
8 (CTY) - 7 (E)	Open-latch	Below 1 Ω
8 (CTY) - 7 (E)	Half-latch	Below 1 Ω
8 (CTY) - 7 (E)	Half-latch → Full-latch	Below 1 Ω → 10 kΩ or higher
8 (CTY) - 7 (E)	Full-latch	10 kΩ or higher
8 (CTY) - 7 (E)	Over-latch	10 kΩ or higher

If the result is not as specified, replace the back door lock assembly (back door courtesy switch).

*a	Component without harness connected (Back Door Lock Assembly (Back Door Courtesy Switch))
*b	Open-latch
*c	Half-latch
*d	Full-latch

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Vehicle Specifications have not been Stored (B2451)

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Inspection

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Lexus NX: Inspection

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Inspection