Lexus NX manuals

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

(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)

*a

Component without harness connected

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

*b

Clockwise

*c

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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