Starter Switch Circuit Malfunction
2001-2004 Subaru Outback 3.0L H6
Description
The PCM has detected a malfunction in the starter switch circuit. The signal from the ignition switch indicating a start request is not being received correctly by the PCM.
Symptoms
- Check Engine Light
- PCM may not recognize engine cranking state
- Fuel and ignition timing strategy may be incorrect during start
- Extended crank time
Common Causes
- Faulty ignition switch
- Wiring issue in starter switch signal circuit
- Corroded ignition switch connector
- Neutral safety switch issue affecting start signal
- PCM input circuit fault
Diagnostic Steps
- Check starter switch signal on scan tool during cranking
- Inspect ignition switch connector
- Test starter switch circuit wiring for continuity
- Check neutral safety switch
- Verify PCM receives crank signal
Repair Notes
Repair the ignition switch signal circuit or replace the ignition switch if faulty.
Related Codes
Other Powertrain Codes
- P0001Fuel Volume Regulator Control Circuit/Open
- P0002Fuel Volume Regulator Control Circuit Range/Performance
- P0003Fuel Volume Regulator Control Circuit Low
- P0004Fuel Volume Regulator Control Circuit High
- P0010Intake Camshaft Position Actuator Circuit/Open Bank 1
- P0011Intake Camshaft Position Timing Over-Advanced Bank 1
- P0012Intake Camshaft Position Timing Over-Retarded Bank 1
- P0013Exhaust Camshaft Position Actuator Circuit/Open Bank 1
- P0014Exhaust Camshaft Position Timing Over-Advanced Bank 1
- P0015Exhaust Camshaft Position Timing Over-Retarded Bank 1
P1100 on Other Vehicles
Common Questions
What does code P1100 mean on a 2001-2004 Subaru Outback?
P1100 stands for "Starter Switch Circuit Malfunction". The PCM has detected a malfunction in the starter switch circuit. The signal from the ignition switch indicating a start request is not being received correctly by the PCM.
What are the symptoms of P1100 on a Subaru Outback?
Common symptoms of P1100 include: Check Engine Light, PCM may not recognize engine cranking state, Fuel and ignition timing strategy may be incorrect during start, Extended crank time.
What causes P1100 on a 2001-2004 Subaru Outback?
Common causes of P1100 include: Faulty ignition switch, Wiring issue in starter switch signal circuit, Corroded ignition switch connector, Neutral safety switch issue affecting start signal, PCM input circuit fault.