Lexus IS250 · Service Manual BODY ELECTRICAL

INSPECTION

Inspection


INSPECT REAR DOOR LOCK LH ASSEMBLY

  1. INSPECT UNLOCK DETECTION SWITCH

    B112742E03

    1. Remove the rear door lock assembly LH.

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

      Standard resistance:
      Tester Connection
      		 Measurement Condition
      		 Door Lock Condition
      		 (Specified Condition)
      6 - 9 (*1)
      		 Battery positive (+) → Terminal 2
      Battery negative (-) → Terminal 1
      		 Lock
      		 10 kΩ or higher
      6 - 9 (*1)
      		 Battery positive (+) → Terminal 1
      Battery negative (-) → Terminal 2
      		 Unlock
      		 Below 1 Ω
      6 - 9 (*2)
      		 Battery positive (+) → Terminal 4
      Battery negative (-) → Terminal 1
      		 Lock
      		 10 kΩ or higher
      6 - 9 (*2)
      		 Battery positive (+) → Terminal 1
      Battery negative (-) → Terminal 4
      		 Unlock
      		 Below 1 Ω

      *1: w/ Double locking system
      *2: w/o Double locking system

  1. INSPECT REAR DOOR LOCK MOTOR

    B112743E04

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

      OK:
      Measurement Condition
      		 Specified Condition
      Battery positive (+) → Terminal 4
      Battery negative (-) → Terminal 1 (*1)
      		 Lock
      Battery positive (+) → Terminal 1
      Battery negative (-) → Terminal 4 (*1)
      		 Unlock
      Battery positive (+) → Terminal 2
      Battery negative (-) → Terminal 1 (*2)
      		 Lock
      Battery positive (+) → Terminal 1
      Battery negative (-) → Terminal 2 (*2)
      		 Unlock

      *1: w/ Double locking system
      *2: w/o Double locking system

  1. B064705E02
    INSPECT DOUBLE LOCK POSITION SWITCH

    1. Remove the rear door lock assembly LH.

    2. Apply battery voltage and set the door lock motor to the lock position.

      OK:
      Measurement Condition
      		 Specified Condition
      Battery positive (+) →Terminal 2
      Battery negative (-) →Terminal 1
      		 Lock

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

      OK:
      Measurement Condition
      		 Specified Condition
      Battery positive (+) →Terminal 4
      Battery negative (-) →Terminal 3
      		 Double Locking System is set
      Battery positive (+) →Terminal 3
      Battery negative (-) →Terminal 4
      		 Double Locking System is unset

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

      Standard resistance:
      Tester Connection
      		 Double Lock Position
      		 Specified Condition
      9 - 10
      		 Set
      		 Below 1 Ω
      9 - 10
      		 Unset
      		 10 kΩ or higher

  1. B064705E03
    INSPECT DOUBLE DOOR LOCK MOTOR

    1. Remove the rear door lock assembly LH.

    2. Apply battery voltage and set the door lock motor to the lock position.

      OK:
      Measurement Condition
      		 Specified Condition
      Battery positive (+) →Terminal 2
      Battery negative (-) →Terminal 1
      		 Lock

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

      OK:
      Measurement Condition
      		 Specified Condition
      Battery positive (+) →Terminal 4
      Battery negative (-) →Terminal 3
      		 Double Locking System is set
      Battery positive (+) →Terminal 3
      Battery negative (-) →Terminal 4
      		 Double Locking System is unset

    4. Check that the doors cannot be unlocked by operating the control cable while the double locking system is set.

      OK:
      The doors cannot be unlocked.


INSPECT REAR DOOR LOCK RH ASSEMBLY

  1. INSPECT UNLOCK DETECTION SWITCH

    B112741E07

    1. Remove the rear door lock assembly RH.

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

      Standard resistance:
      Tester Connection
      		 Measurement Condition
      		 Door Lock Condition
      		 (Specified Condition)
      9 - 10 (*1)
      		 Battery positive (+) → Terminal 4
      Battery negative (-) → Terminal 1
      		 Lock
      		 10 kΩ or higher
      9 - 10 (*1)
      		 Battery positive (+) → Terminal 1
      Battery negative (-) → Terminal 4
      		 Unlock
      		 Below 1 Ω
      6 - 9 (*2)
      		 Battery positive (+) → Terminal 4
      Battery negative (-) → Terminal 1
      		 Lock
      		 10 kΩ or higher
      6 - 9 (*2)
      		 Battery positive (+) → Terminal 1
      Battery negative (-) → Terminal 4
      		 Unlock
      		 Below 1 Ω

      *1: w/ Double locking system
      *2: w/o Double locking system

  1. INSPECT REAR DOOR LOCK MOTOR

    B112743E05

    1. Remove the rear lock assembly RH.

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

      OK:
      Measurement Condition
      		 Specified Condition
      Battery positive (+) → Terminal 4
      Battery negative (-) → Terminal 3 (*1)
      		 Lock
      Battery positive (+) → Terminal 3
      Battery negative (-) → Terminal 4 (*1)
      		 Unlock
      Battery positive (+) → Terminal 4
      Battery negative (-) → Terminal 1 (*2)
      		 Lock
      Battery positive (+) → Terminal 1
      Battery negative (-) → Terminal 4 (*2)
      		 Unlock

      *1: w/ Double locking system
      *2: w/o Double locking system

  1. B064706E02
    INSPECT DOUBLE LOCK POSITION SWITCH

    1. Apply battery voltage and set the door lock motor to the lock position.

      OK:
      Measurement Condition
      		 Specified Condition
      Battery positive (+) →Terminal 4
      Battery negative (-) →Terminal 3
      		 Lock

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

      OK:
      Measurement Condition
      		 Specified Condition
      Battery positive (+) →Terminal 2
      Battery negative (-) →Terminal 1
      		 Double Locking System is set
      Battery positive (+) →Terminal 1
      Battery negative (-) →Terminal 2
      		 Double Locking System is unset

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

      Standard resistance:
      Tester Connection
      		 Double Lock Position
      		 Specified Condition
      5 - 6
      		 Set
      		 Below 1 Ω
      5 - 6
      		 Unset
      		 10 kΩ or higher

  1. B064706E03
    INSPECT DOUBLE DOOR LOCK MOTOR

    1. Apply battery voltage and set the door lock motor to the lock position.

      OK:
      Measurement Condition
      		 Specified Condition
      Battery positive (+) →Terminal 4
      Battery negative (-) →Terminal 3
      		 Lock

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

      OK:
      Measurement Condition
      		 Specified Condition
      Battery positive (+) →Terminal 2
      Battery negative (-) →Terminal 1
      		 Double Locking System is Set
      Battery positive (+) →Terminal 1
      Battery negative (-) →Terminal 2
      		 Double Locking System is Unset

    3. heck that the doors cannot be unlocked by operating the control cable while the double locking system is set.

      OK:
      The doors cannot be unlocked.

← REMOVALINSTALLATION →