Introduction

2005 Mitsubishi Lancer L4-2.4L SOHCSECTION Introduction
DIAGNOSIS
This system is controlled by the Simplified Wiring System (SWS). For troubleshooting, refer to SWS Diagnosis.

The following tests can be performed using the SWS Simplified Fault Diagnosis Mode:
- SWS ECU specification
- Switch input signals for each ECU
- Diagnostic trouble code output

Refer to Computers and Control Systems/Information Bus/Testing for details of the SWS Simplified Fault Diagnosis Mode.

Refer to: Testing and Inspection





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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.