Inspection Procedure

WARNING: This page is about a different car, the 2008 Lexus RX 350. However, it is still accessible from the selected car via links, so may be relevant.

INSPECT FRONT DOOR LOCK ASSEMBLY (DOOR LOCK MOTOR)

Remove the front door lock assembly.

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

MEASUREMENT CONNECTION SPECIFIED CONDITION REFERENCE TABLE

Measurement Condition	Specified Condition
Battery positive (+) → Terminal 4 Battery negative (-) → Terminal 1	Lock
Battery positive (+) → Terminal 1 Battery negative (-) → Terminal 4	Unlock

Fig 1: Identifying Front Door Lock Assembly (Door Lock Motor)

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NG: REPLACE FRONT DOOR LOCK ASSEMBLY

OK: Go to next step.

CHECK WIRE HARNESS (FRONT DOOR LOCK ASSEMBLY - INSTRUMENT PANEL J/B)

Disconnect the front door lock assembly connector.
Disconnect the instrument panel J/B connector.

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

Standard resistance

TESTER CONNECTION SPECIFIED CONDITION REFERENCE TABLE

Tester Connection	Condition	Specified Condition
D10-4 (L) - 1K-2	Always	Below 1 Ω
D10-1 (UL) - B6-4 (ACTD)	Always	Below 1 Ω

Fig 2: Identifying Front Door Lock Assembly & Instrument Panel J/B Connector Terminals

NG: REPAIR OR REPLACE HARNESS OR CONNECTOR

OK: OTHERS PROCEED TO NEXT CIRCUIT INSPECTION SHOWN IN PROBLEM SYMPTOMS TABLE