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Check Door Switch

DIAGNOSTIC PROCEDURE

Step Check Yes No
1 CHECK DATA MONITOR. 
Display the following items using Subaru Select Monitor.
  • «Driver's door SW input»
  • «P-door SW input»
  • «Rear right door SW input»
  • «Rear left door SW input»
  • «R Gate SW input»
    NOTE: For detailed operation procedures, refer to "Application help".
 Does the display switch between OFF ←→ ON when each door, trunk lid, or rear gate is opened/closed? The door switches, trunk lid latch switch or rear gate latch switch are normal. Go to step 2  .
2 CHECK HARNESS. 
  1. Disconnect the connector of body integrated unit.
  2. Disconnect the connector of the door switch, trunk lid latch switch or rear gate latch switch that the display does not change.
  3. Check the harness between body integrated unit and defective switch.

    Connector & terminal 

    Front door LH 

    (i171) No. 33 - (R9) No. 2: 

    Front door RH 

    (i171) No. 13 - (R12) No. 4: 

    Rear door LH 

    (i171) No. 14 - (R22) No. 4: 

    Rear door RH 

    (i171) No. 34 - (R16) No. 4: 

    Trunk lid 

    (i171) No. 15 - (R186) No. 3: 

    Rear gate (model without power rear gate) 

    (i171) No. 15 - (D46) No. 3: 

    Rear gate (model with power rear gate) 

    (i171) No. 15 - (D153) No. 3: 

 Is harness normal? Go to step 3  . Repair or replace the harness.
3 CHECK HARNESS. 
Measure the resistance between the faulty switch connector and chassis ground.
Connector & terminal 
Front door LH 
(R9) No. 1 - Chassis ground: 
Front door RH 
(R12) No. 1 - Chassis ground: 
Rear door LH 
(R22) No. 1 - Chassis ground: 
Rear door RH 
(R16) No. 1 - Chassis ground: 
Trunk lid 
(R186) No. 2 - Chassis ground: 
Rear gate (model without power rear gate) 
(D46) No. 4 - Chassis ground: 
Rear gate (model with power rear gate) 
(D153) 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 switch terminals.
Terminals 
Front LH door switch 
No. 2 - No. 1: 
Front RH door switch 
No. 4 - No. 1: 
Rear LH door switch 
No. 4 - No. 1: 
Rear RH door switch 
No. 4 - No. 1: 
Trunk lid latch switch 
No. 3 - No. 2: 
Rear gate (model without power rear gate) 
No. 3 - No. 4: 
Rear gate (model with power rear gate) 
No. 3 - No. 4: 		 Is the resistance 1 MΩ or more when the door switch is pushed and the trunk lid is closed? Replace the body integrated unit. < Ref. to BODY INTEGRATED UNIT . > Replace the faulty parts.
  • Door switches
  • Trunk lid latch and actuator assembly
  • Rear gate latch and actuator assembly
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