Lexus NX: Inspection

INSPECTION

PROCEDURE

1. INSPECT BACK DOOR LOCK ASSEMBLY (w/o Power Back Door)

(a) Check the operation of the door lock motor.

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

(2) Apply auxiliary battery voltage to the door lock motor assembly and check the operation of the door lock motor.

OK:

Measurement Condition

Specified Condition

Auxiliary battery positive (+) → 1 (ACT+)

Auxiliary battery negative (-) → 2 (ACT-)

Unlock

If the result is not as specified, replace the back door lock assembly.

*a

Unlock

*b

Lock

*c

Component without harness connected

(Back Door Lock Assembly)

(b) Check the operation of the door courtesy switch.

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

Standard Resistance:

Tester Connection

Condition

Specified Condition

3 (D+) - 2 (ACT-)

Lock

10 kΩ or higher

3 (D+) - 2 (ACT-)

Unlock

Below 1 Ω

If the result is not as specified, replace the back door lock assembly.

2. INSPECT BACK DOOR LOCK ASSEMBLY (w/ Power Back Door)

*a

Clockwise

*b

Counterclockwise

*c

Over-latch

*d

Full-latch

*e

Half-latch

*f

Open-latch

*g

Component without harness connected

(Back Door Lock Assembly)

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

OK:

Measurement Condition

Specified Condition

Auxiliary battery positive (+) → 1 (M+)

Auxiliary battery negative (-) → 4 (M-)

Latch turns to full-latch position (clockwise rotation)

Auxiliary battery positive (+) → 4 (M-)

Auxiliary battery negative (-) → 1 (M+)

Latch turns to open-latch position (counterclockwise rotation)

If the result is not as specified, replace the back door lock assembly.

(b) Check the operation of the latch switch.

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

Standard Resistance

Tester Connection

Condition

Specified Condition

3 (CLS) - 7 (E)

Open-latch

Below 1 Ω

3 (CLS) - 7 (E)

Open-latch → Half-latch

Below 1 Ω → 10 kΩ or higher

3 (CLS) - 7 (E)

Half-latch

10 kΩ or higher

3 (CLS) - 7 (E)

Full-latch

10 kΩ or higher

3 (CLS) - 7 (E)

Over-latch

10 kΩ or higher → Below 1 Ω → 10 kΩ or higher

Standard Resistance

Tester Connection

Condition

Specified Condition

3 (CLS) - 7 (E)

Full-latch

10 kΩ or higher

3 (CLS) - 7 (E)

Half-latch

10 kΩ or higher

3 (CLS) - 7 (E)

Half-latch → Open-latch

10 kΩ or higher → Below 1 Ω

3 (CLS) - 7 (E)

Open-latch

Below 1 Ω

If the result is not as specified, replace the back door lock assembly.

(c) Check the operation of the pawl switch.

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

Standard Resistance

Tester Connection

Condition

Specified Condition

2 (FSW) - 7 (E)

Open-latch

10 kΩ or higher

2 (FSW) - 7 (E)

Open-latch → Half-latch

10 kΩ or higher → Below 1 Ω → 10 kΩ or higher

2 (FSW) - 7 (E)

Half-latch

10 kΩ or higher

2 (FSW) - 7 (E)

Half-latch → Full-latch

10 kΩ or higher → Below 1 Ω → 10 kΩ or higher

2 (FSW) - 7 (E)

Full-latch

10 kΩ or higher

If the result is not as specified, replace the back door lock assembly.

(d) Check the operation of the back door courtesy switch.

(1) 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.

(e) Check the operation of the selector switch.

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

Standard Resistance

Tester Connection

Condition

Specified Condition

6 (OPN) - 7 (E)

Selector Switch ON

Below 1 Ω

6 (OPN) - 7 (E)

Selector Switch OFF

10 kΩ or higher

If the result is not as specified, replace the back door lock assembly.

*1

Selector Switch

*2

Selector Gear

*a

Component without harness connected

(Back Door Lock Assembly)

READ NEXT:

 Installation

INSTALLATION PROCEDURE 1. INSTALL BACK DOOR LOCK ASSEMBLY (w/ Power Back Door) NOTICE: When installing a new back door lock assembly, if there is any tape stuck to it, remove the tape. When insta

 Door Control Receiver

 Components

COMPONENTS ILLUSTRATION *1 DECK FLOOR BOX LH *2 NO. 3 DECK BOARD SUB-ASSEMBLY *3 REAR DECK FLOOR BOX *4 NEGATIVE AUXILIARY BATTERY TERMINAL N*m (kgf*cm, ft.*lbf): Specified

SEE MORE:

 How To Proceed With Troubleshooting

CAUTION / NOTICE / HINT HINT: Use these procedures to troubleshoot the power steering system. *: Use the Techstream. PROCEDURE 1. VEHICLE BROUGHT TO WORKSHOP NEXT 2. INSPECT AUXILIARY BATTERY VOLTAGE (a) Measure the voltage of the auxiliary battery. Standar

 Voice is not Recognized

PROCEDURE 1. CHECK CONDITION (a) While paying attention to the condition of the spoken voice command, perform a voice recognition operation. OK: Voice command is recognized normally. HINT: When the voice command is recognized, the content of the voice command is displayed in the voice r

© 2016-2025 Copyright www.lexunx.com