Check Door Switch

WARNING: This page is about a different car, the 2013 Subaru Forester. However, it is still accessible from the selected car via links, so may be relevant.

Step	Check	Yes	No
1 CHECK INPUT CIRCUIT. Prepare the Subaru Select Monitor kit. Turn the ignition switch to ON (engine OFF) and run the "PC application for Subaru Select Monitor". On «System Selection Menu» display, select {Integ. unit mode}. Select {Current Data Display & Save}. Select {Driver's door SW input}, {P-door SW input}, {Rear right door SW input}, {Rear left door SW input}, and {R Gate SW input}.	Does the display switch between OFF ↔ ON when each door or rear gate is opened?	The door and rear gate latch switch circuits are normal.	Go to step 2 .
2 CHECK HARNESS. Turn the ignition switch to OFF. Disconnect the harness connector of body integrated unit. Disconnect the door switch harness connector that the display does not change. Check the harness between body integrated unit and defective door switch. Connector & terminal Front door LH (i84) No. 19 - (R9) No. 1: Front door RH (i84) No. 32 - (R12) No. 1: Rear door LH (i84) No. 20 - (R22) No. 1: Rear door RH (i84) No. 6 - (R16) No. 1: Rear gate (i84) No. 33 - (D46) No. 3:	Is harness normal?	Go to step 3 .	Repair or replace the harness.
3 CHECK HARNESS CIRCUIT. Measure the resistance between defective door switch harness connector terminal and chassis ground. Connector & terminal Front door LH (R9) No. 3 - Chassis ground: Front door RH (R12) No. 3 - Chassis ground: Rear door LH (R22) No. 3 - Chassis ground: Rear door RH (R16) No. 3 - Chassis ground: Rear gate (D46) No. 4 - Chassis ground:	Is the resistance less than 10 Ω?	Go to step 4 .	Repair or replace the harness.
4 CHECK DOOR SWITCH. Measure the resistance between faulty door switch or rear gate latch switch terminals. Connector & terminal Front LH door switch (R9) No. 1 - No. 3: Front RH door switch (R12) No. 1 - No. 3: Rear LH door switch (R22) No. 1 - No. 3: Rear RH door switch (R16) No. 1 - No. 3: Rear gate latch switch (D46) No. 3 - No. 4:	Is the resistance 1 MΩ or more when the door switch is pushed or the rear gate is closed?	Go to step 5 .	Replace the faulty parts. Door switch Rear gate latch and actuator ASSY
5 CHECK DOOR SWITCH. Measure the resistance between faulty door switch or rear gate latch switch terminals. Connector & terminal Front LH door switch (R9) No. 1 - No. 3: Front RH door switch (R12) No. 1 - No. 3: Rear LH door switch (R22) No. 1 - No. 3: Rear RH door switch (R16) No. 1 - No. 3: Rear gate latch switch (D46) No. 3 - No. 4:	Is the resistance less than 10 Ω when door switch is released or the rear gate is opened?	Replace the body integrated unit. < Refer to BODY INTEGRATED UNIT . >	Replace the door switch, or rear gate latch and actuator assembly.