Enhanced Starter Motor Control Module Fault
2000-2012 Mitsubishi Eclipse 2.4L I4 🇨🇦
Description
The enhanced or reinforced starter motor used in start-stop systems has a control module fault. These starters are designed for frequent cycling.
Symptoms
- Start-stop disabled
- Slow cranking after stop event
- Starter noise during restart
- Unusual vibration during start
- Increased restart time
Common Causes
- Starter control module failure
- Starter motor brush wear
- Pinion gear engagement issue
- Starter solenoid degradation
- Excessive starter motor temperature
Diagnostic Steps
- Read starter motor cycle count
- Test starter motor current draw
- Check starter engagement speed
- Monitor starter solenoid operation
- Measure voltage drop across starter circuit
Repair Notes
Replace enhanced starter motor assembly. Standard starters are not suitable for start-stop equipped vehicles.
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
P3603 on Other Vehicles
Mitsubishi Colt JP
2002-2012 1.3L I4 4A90
Mitsubishi Colt JP
2002-2012 1.5L I4 4A91
Mitsubishi Delica D:5
2019-2025 2.2L I4 Turbo Diesel 4N14
Mitsubishi Eclipse
2006-2012 2.4L I4
Mitsubishi Eclipse
2006-2012 3.8L V6
Mitsubishi Eclipse Cross
2018-2024 1.5L I4 Turbo
Mitsubishi Eclipse Cross
2018-2024 1.5L Turbo I4
Mitsubishi Eclipse Cross PHEV
2022-2024 2.4L I4 PHEV
Common Questions
What does code P3603 mean on a 2000-2012 Mitsubishi Eclipse?
P3603 stands for "Enhanced Starter Motor Control Module Fault". The enhanced or reinforced starter motor used in start-stop systems has a control module fault. These starters are designed for frequent cycling.
What are the symptoms of P3603 on a Mitsubishi Eclipse?
Common symptoms of P3603 include: Start-stop disabled, Slow cranking after stop event, Starter noise during restart, Unusual vibration during start, Increased restart time.
What causes P3603 on a 2000-2012 Mitsubishi Eclipse?
Common causes of P3603 include: Starter control module failure, Starter motor brush wear, Pinion gear engagement issue, Starter solenoid degradation, Excessive starter motor temperature.