Lexus RX (RX 350L, RX450h) 2016-2024 Repair Manual: Inspection

Lexus RX (RX 350L, RX450h) 2016-2024 Repair Manual / Vehicle Interior / Door Lock / Front Door Lock / Inspection

INSPECTION

PROCEDURE

1. INSPECT FRONT DOOR LOCK WITH MOTOR ASSEMBLY LH

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

(1) Apply battery voltage and check the operation of the door lock motor.

OK:

Battery Connection

Result

Battery positive (+) → Terminal 4 (L)

Battery negative (-) → Terminal 1 (UL)

Locks

Battery positive (+) → Terminal 1 (UL)

Battery negative (-) → Terminal 4 (L)

Unlocks

If the result is not as specified, replace the front door lock with motor assembly LH.

*a

Unlock

*b

Lock

*c

Component without harness connected

(Front Door Lock with Motor 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)

Locked

10 kΩ or higher

7 (E) - 8 (LSSR)

Unlocked

Below 1 Ω

If the result is not as specified, replace the front door lock with motor assembly LH.

(c) Check the operation of the door key 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)

Held to lock side

Below 1 Ω

9 (L) - 7 (E)

Neutral or held to unlock side

10 kΩ or higher

10 (UL) - 7 (E)

Held to unlock side

Below 1 Ω

10 (UL) - 7 (E)

Neutral or held to lock side

10 kΩ or higher

If the result is not as specified, replace the front door lock with motor assembly LH.

*a

Unlock

*b

Neutral

*c

Lock

*d

Component without harness connected

(Front Door Lock with Motor Assembly LH)

2. INSTALL FRONT DOOR LOCK WITH MOTOR ASSEMBLY RH

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

(1) Apply battery voltage and check the operation of the door lock motor.

OK:

Battery Connection

Result

Battery positive (+) → Terminal 4 (L)

Battery negative (-) → Terminal 1 (UL)

Locks

Battery positive (+) → Terminal 1 (UL)

Battery negative (-) → Terminal 4 (L)

Unlocks

If the result is not as specified, replace the front door lock with motor assembly RH.

*a

Unlock

*b

Lock

*c

Component without harness connected

(Front Door Lock with Motor 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)

Locked

10 kΩ or higher

7 (LSSR) - 8 (E)

Unlocked

Below 1 Ω

If the result is not as specified, replace the front door lock with motor assembly RH.

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