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HOMESERVICE MANUALSSUBARU2005OUTBACK I, STANDARDREPAIR AND DIAGNOSISBODY & FRAMEDOOR LOCKSSECURITY AND LOCKSSECURITY SYSTEMINSPECTIONCHECK IGNITION SWITCH CIRCUIT
2005 Subaru Outback i, Standard

Check Ignition Switch Circuit

2005 Subaru Outback i, StandardSECTION Check Ignition Switch Circuit
STEP CHECK SHEET

Step Check Yes No
1. CHECK IGNITION SWITCH VOLTAGE. 
  1. Connect the Subaru Select Monitor to data link connector.
  2. Turn the ignition switch to ON.
  3. Select {body integrated module} from main menu.
  4. Select {Current Data Display & Save}.
  5. Check the {BATT voltage} and {IG power supply voltage}.
 Is the {IG power supply voltage} within +/-1 V against {BATT voltage}? The ignition switch input circuit is OK. Go to step 2. 
2. CHECK IGNITION SWITCH CIRCUIT. 
  1. Turn the ignition switch to OFF.
  2. Disconnect harness connector of body integrated unit.
  3. Turn the ignition switch to ON.
  4. Measure the voltage between the harness connector terminal and chassis ground.

Connector & terminal 

(i84) No. 1 (+) - Chassis ground (-): 

 Is the voltage more than 10 V? Check the body integrated unit. < Ref. to , BASIC DIAGNOSTIC PROCEDURE . > Check harness for open or short circuit between body integrated unit and fuse.
RENDER: 1.0x

NO RELATED

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When to See a Mechanic

Stop DIY work and contact a certified mechanic immediately if any of the following apply:

  • • You smell fuel, burning insulation, or see smoke.
  • • Brakes feel soft, pull hard to one side, or make grinding noises.
  • • The engine overheats, stalls repeatedly, or misfires under load.
  • • You are missing required tools, torque specs, or safe lifting equipment.
  • • You are not confident in the next step or safety outcome.