Lexus NX: Inspection
INSPECTION
PROCEDURE
1. INSPECT REAR 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 rear door lock assembly LH. | | | *a | Unlock | | *b | Lock | | *c | Component without harness connected (Rear 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 |
| 6 (LSSR) - 9 (E) | Lock | 10 kΩ or higher |
| 6 (LSSR) - 9 (E) | Unlock | Below 1 Ω |
If the result is not as specified, replace the rear door lock assembly LH.
2. INSPECT REAR 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 (+) → 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 rear door lock assembly RH. | | | *a | Unlock | | *b | Lock | | *c | Component without harness connected (Rear Door Lock Assembly RH) | | |
(b) Check the operation of the unlock detection switch.
(1) Measure the resistance according to the value(s) in the table below.
Standard Resistance:
| Tester Connection | Condition | Specified Condition |
| 6 (LSSR) - 9 (E) | Lock | 10 kΩ or higher |
| 6 (LSSR) - 9 (E) | Unlock | Below 1 Ω |
If the result is not as specified, replace the rear door lock assembly RH.
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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
ReplacementREPLACEMENT PROCEDURE 1. REMOVE TRANSMITTER BATTERY (a) Push the release hook knob and extract the mechanical key. (b) Using a screwdriver with its tip wrapped in protect
ComponentsCOMPONENTS ILLUSTRATION *1 FRONT FENDER SPLASH SHIELD FRONT LH *2 WIRELESS DOOR LOCK BUZZER *3 FRONT SIDE AIR GUIDE SUB-ASSEMBLY LH *4 FRONT FENDER LINER LH Installa
SEE MORE:
DESCRIPTION These DTCs are stored when the CAN communication system is malfunctioning. DTC No. Detection Item DTC Detection Condition Trouble Area U023A Lost Communication with Front Camera Module The main body ECU (multiplex network body ECU) does not receive data from the forward
TERMINALS OF ECU CHECK OUTER MIRROR CONTROL ECU ASSEMBLY LH (a) Disconnect the M5 ECU connector. (b) Measure the voltage and resistance according to the value(s) in the table below. Tester Connection Wiring Color Terminal Description Condition Specified Condition M5-5 (SIG) - M5-7 (G
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