Check Door Lock Actuator And Circuit
WARNING: This page is about a different car, the 2014 Subaru Forester. However, it is still accessible from the selected car via links, so may be relevant.
| Step | Check | Yes | No |
|---|---|---|---|
1 CHECK HARNESS (DOOR LOCK)
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Is harness normal? | Go to step 2 . | Repair or replace the harness. |
| 2 CHECK HARNESS (DOOR UNLOCK). Check the harness between body integrated unit and each door lock actuator. Connector & terminal Front door LH (i171) No. 4 - (D72) No. 1: Front door RH (keyless access model) (i171) No. 6 - (D18) No. 1: Front door RH (keyless entry model) (i171) No. 3 - (D18) No. 1: Rear door LH (i171) No. 3 - (D26) No. 1: Rear door RH (i171) No. 3 - (D32) No. 1: |
Is harness normal? | Go to step 3 . | Repair or replace the harness. |
| 3 CHECK HARNESS (REAR GATE UNLOCK). Check the harness between the body integrated unit and rear gate lock actuator. Connector & terminal (i171) No. 7 - (D46) No. 1: |
Is harness normal? | Go to step 4 . | Repair or replace the harness. |
| 4 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? | Go to step 5 . | Repair or replace the harness. |
5 CHECK BODY INTEGRATED UNIT OUTPUT SIGNAL.
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Does the voltage change from less than 1 V → 9 V or more? (During lock output) | Go to step 6 . | Replace the body integrated unit. < Ref. to BODY INTEGRATED UNIT . > |
| 6 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 Except for front door LH (i171) No. 3 (+) - (i171) No. 2 (-): Front door LH (i171) No. 4 (+) - (i171) No. 2 (-): |
Does the voltage change from less than 1 V → 9 V or more? (During unlock output) | Go to step 7 . | Replace the body integrated unit. < Ref. to BODY INTEGRATED UNIT . > |
| 7 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 (i171) No. 7 (+) - Chassis ground (-): |
Does the voltage change from less than 1 V → 9 V or more? (During unlock output) | Go to step 8 . | Replace the body integrated unit. < Ref. to BODY INTEGRATED UNIT . > |
| 8 CHECK DOOR LOCK ACTUATOR. Check the door lock actuator.
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Is the door lock actuator OK? | Go to step 9 . | Replace the door latch and door lock actuator assembly. |
| 9 CHECK REAR GATE LOCK ACTUATOR. Check the rear gate lock actuator. < Ref. to REAR GATE LATCH AND ACTUATOR ASSEMBLY . > |
Is the rear gate lock actuator normal? | Check the connection status of the harness and connector that may have a temporary poor contact. | Replace the rear gate latch and actuator assembly. |