Lexus NX: Inspection
INSPECTION
PROCEDURE
1. INSPECT FRONT DOOR LOCK ASSEMBLY LH
| (a) Check the door lock motor operation. (1) Apply auxiliary battery voltage to the motor connector and check the operation of the door lock motor. OK: | Measurement Condition | Specified Condition | | Auxiliary battery positive (+) → Terminal 4 (L) Auxiliary battery negative (-) → Terminal 1 (UL) | Lock | | Auxiliary battery positive (+) → Terminal 1 (UL) Auxiliary battery negative (-) → Terminal 4 (L) | Unlock | If the result is not as specified, replace the front door lock assembly LH. | | | *a | Unlock | | *b | Lock | | *c | Component without harness connected (Front Door Lock Assembly LH) | | |
(b) Check the operation of the door unlock detection switch.
(1) Measure the resistance according to the value(s) in the table below.
Standard Resistance:
| Tester Connection | Condition | Specified Condition |
| 7 (E) - 8 (LSSR) | Lock | 10 kΩ or higher |
| Unlock | Below 1 Ω |
If the result is not as specified, replace the front door lock assembly LH.
| (c) Check the resistance of the lock and unlock switch. (1) Measure the resistance according to the value(s) in the table below. Standard Resistance: | Tester Connection | Condition | Specified Condition | | 9 (L) - 7 (E) | Lock | Below 1 Ω | | 9 (L) - 7 (E) 10 (UL) - 7 (E) | Neutral | 10 kΩ or higher | | 10 (UL) - 7 (E) | Unlock | Below 1 Ω | If the result is not as specified, replace the front door lock assembly LH. | | | *a | Unlock | | *b | Neutral | | *c | Lock | | *d | Component without harness connected (Front Door Lock Assembly LH) | | |
2. INSPECT FRONT DOOR LOCK ASSEMBLY RH
| (a) Check the door lock motor operation. (1) Apply auxiliary battery voltage to the motor connector and check the operation of the door lock motor. OK: | Measurement Condition | Specified Condition | | Auxiliary battery positive (+) → 4 (L) Auxiliary battery negative (-) → 1 (UL) | Lock | | Auxiliary battery positive (+) → 1 (UL) Auxiliary battery negative (-) → 4 (L) | Unlock | If the result is not as specified, replace the front door lock assembly RH. | | | *a | Unlock | | *b | Lock | | *c | Component without harness connected (Front Door Lock Assembly RH) | | |
(b) Check the operation of the door unlock detection switch.
(1) Measure the resistance according to the value(s) in the table below.
Standard Resistance:
| Tester Connection | Condition | Specified Condition |
| 7 (LSSR) - 8 (E) | Lock | 10 kΩ or higher |
| 7 (LSSR) - 8 (E) | Unlock | Below 1 Ω |
If the result is not as specified, replace the front door lock assembly RH.
READ NEXT:
INSTALLATION CAUTION / NOTICE / HINT HINT:
Use the same procedure for the RH and LH sides.
The procedure listed below is for the LH side.
A bolt without a torque specification is shown in the s
PRECAUTION PRECAUTIONS WHEN USING TECHSTREAM (a) When using the Techstream with the vehicle power switch off, connect the Techstream to the DLC3 and turn a courtesy light switch on and off at interval
SEE MORE:
DESCRIPTION When the clearance warning ECU assembly determines that the CAN communication circuit is malfunctioning during self-diagnosis, DTC U1000 is stored. DTC No. Detection Item DTC Detection Condition Trouble Area U1000 CAN Communication Failure (Message Registry) CAN communic
PARTS LOCATION ILLUSTRATION *1 FRONT WIPER DEICER RELAY *2 AIR CONDITIONING AMPLIFIER ASSEMBLY *3 MULTI-DISPLAY ASSEMBLY *4 RADIO RECEIVER ASSEMBLY *5 WINDSHIELD GLASS - WINDSHIELD DEICER WIRE *6 NO. 2 ENGINE ROOM RELAY BLOCK *7 DEICER FUSE *8 ECU-B NO.2 FUSE
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