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
The certification ECU (smart key ECU assembly) blinks the security indicator light (air conditioning control assembly) when the immobiliser is set (power switch off, or driver door is opened and closed with power switch on (IG)).
The certification ECU (smart key ECU assembly) receiv
REMOVAL PROCEDURE 1. REMOVE NO. 1 ENGINE UNDER COVER ASSEMBLY Click here 2. REMOVE INVERTER WITH CONVERTER ASSEMBLY Click here 3. REMOVE INVERTER WATER PUMP WITH MOTOR ASSEMBLY Click here 4. REMOVE INVERTER BRACKET ASSEMBLY Click here 5. DISCONNECT WIRE HARNESS (a) Disconnect the 4
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