Driver Side Double Lock Position Switch Circuit

DESCRIPTION

The driver's door double lock position switch is built into the driver's door lock assembly. The switch turns on when the driver's door double lock is set and turns off when the double lock is released.
The double door lock ECU is connected to the driver's door lock assembly via terminal DLPD or DLPP and driver's door double lock set/released state signals are input to the ECU.
The double door lock ECU applies voltage to terminal DLSR of the double lock position switch via terminal DLPD or DLPP. When the switch is on (there is continuity between the switch terminals), a set state signal is input to the ECU. When the switch is off (there is no continuity between the switch terminals), a release state signal is input.
The double door lock ECU sends driver's door double lock set/released state information to the main body ECU RH using multiplex communication.

WIRING DIAGRAM

INSPECTION PROCEDURE

1. INSPECT FRONT DOOR LOCK ASSEMBLY (DOUBLE LOCK POSITION SWITCH)

1. LHD Models:Remove the front door lock assembly LH.

   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

2. RHD Models:Remove the front door lock assembly RH.

   1. 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

   2. 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

   3. 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

NG	REPLACE FRONT DOOR LOCK ASSEMBLY

OK

2. CHECK WIRE HARNESS (FRONT DOOR LOCK ASSEMBLY - DOUBLE DOOR LOCK ECU)

1. LHD Models:Disconnect the front door lock assembly LH connector.

   1. Disconnect the double door lock ECU connector.

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

      Standard resistance:

      Tester Connection (Symbols)	Condition	Specified Condition
      M2-6 (DLSR) - P34-6 (DLPP)	Always	Below 1 Ω
      M2-6 (DLSR) - Body ground	Always	10 kΩ or higher
      M2-5 (E) - Body ground	Always	Below 1 Ω

2. RHD Models:Disconnect the front door lock assembly RH connector.

   1. Disconnect the double door lock ECU connector.

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

      Standard resistance:

      Tester Connection (Symbols)	Condition	Specified Condition
      L8-9 (DLSR) - D2-5 (DLPD)	Always	Below 1 Ω
      L8-9 (DLSR) - Body ground	Always	10 kΩ or higher
      L8-10 (E) - Body ground	Always	Below 1 Ω

NG	REPAIR OR REPLACE HARNESS OR CONNECTOR

OK
PROCEED TO NEXT CIRCUIT INSPECTION SHOWN IN PROBLEM SYMPTOMS TABLE