Check Door Lock Actuator And Circuit

CHECK HARNESS (DOOR LOCK) .
1. Disconnect the body integrated unit and each door lock actuator connector.
2. Check the harness between body integrated unit and each door lock actuator.
Connector & terminal

Front door LH

(i265) No. 6 - (D72) No. 4:

Front door RH

(1265) No. 7 - (D18) No. 4:

Rear door LH

(1266) No. 5 - (D26) No. 4:

Rear door RH

(i266) No. 4 - (D32) No. 4:

Is harness normal?

Yes : Go to 2.

No : Repair or replace the harness.
CHECK HARNESS (DOOR UNLOCK) .
Check the harness between body integrated unit and each door lock actuator.

Connector & terminal

Front door LH

(i84) No. 6 - (D72) No. 1:

Front door RH

(1265) No. 2 - (D18) No. 1:

Rear door LH

(1266) No. 9 - (D26) No. 1:

Rear door RH

(i265) No. 2 - (D32) No. 1:

Is harness normal?

Yes : Go to 3.

No : Repair or replace the harness.
CHECK HARNESS (REAR GATE UNLOCK) .
Check the harness between the body integrated unit and rear gate lock actuator.

Connector & terminal

(i266) No. 7 - (D46) No. 1:

Is harness normal?

Yes : Go to 4.

No : Repair or replace the harness.
CHECK HARNESS (REAR GATE UNLOCK) .
Measure the resistance between the rear gate lock actuator connector and chassis ground.

Connector & terminal

(D46) No. 2 - Chassis ground:

Is the resistance less than 10 Ω?

Yes : Go to 5.

No : Repair or replace the harness.
CHECK BODY INTEGRATED UNIT OUTPUT SIGNAL .
1. Connect the body integrated unit connector.
2. Measure the voltage between terminals of the body integrated unit when operating the door lock switch to LOCK direction.
Connector & terminal Front door LH

(i265) No. 6 (+) - (i84) No. 6 (-):

Front door RH

(1265) No. 7 (+) - (i265) No. 2 (-):

Rear door LH

(1266) No. 5 (+) - (i266) No. 9 (-):

Rear door RH

(i266) No. 4 (+) - (i265) No. 2 (-):

Does the voltage change from less than 1 V → 9 V or more? (During lock output)

Yes : Go to 6.

No : Replace the body integrated unit. Ref. to SECURITY AND LOCKS>BODY INTEGRATED UNIT .
CHECK BODY INTEGRATED UNIT OUTPUT SIGNAL .
Measure the voltage between terminals of the body integrated unit when operating the door lock switch to UNLOCK direction.

Connector & terminal Front door LH

(i84) No. 6 (+) - (i265) No. 6 (-):

Front door RH

(1265) No. 2 (+) - (i265) No. 7 (-):

Rear door LH

(1266) No. 9 (+) - (i266) No. 5 (-):

Rear door RH

(i265) No. 2 (+) - (i266) No. 4 (-):

Does the voltage change from less than 1 V → 9 V or more? (During unlock output)

Yes : Go to 7.

No : Replace the body integrated unit. Ref. to SECURITY AND LOCKS>BODY INTEGRATED UNIT .
CHECK BODY INTEGRATED UNIT OUTPUT SIGNAL .
Measure the voltage between body integrated unit and chassis ground when operating the rear gate opener button.

Connector & terminal

(i266) No. 7 (+) - Chassis ground (-):

Does the voltage change from less than 1 V → 9 V or more? (During unlock output)

Yes : Go to 8.

No : Replace the body integrated unit. Ref. to SECURITY AND LOCKS>BODY INTEGRATED UNIT .
CHECK DOOR LOCK ACTUATOR .
Check the door lock actuator. Ref. to SECURITY AND LOCKS>Door Latch & Door Lock Actuator Assembly>INSPECTION .

Is the door lock actuator OK?

Yes : Go to 9.

No : Replace the door latch and door lock actuator assembly.
CHECK REAR GATE LOCK ACTUATOR .
Check the rear gate lock actuator. Ref. to SECURITY AND LOCKS>Rear Gate Latch and Actuator Assembly>INSPECTION .

Is the rear gate lock actuator normal?

Yes : Check the connection status of the harness and connector that may have a temporary poor contact.

No : Replace the rear gate latch and actuator assembly.