Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
Provisional DTCs
2004 Mitsubishi Lancer L4-2.4L SOHCSECTION Provisional DTCs
PROVISIONAL DTCs [MUT-III OBD-II Test Mode - Results (Mode 7)]
The scan tool MB991958 (MUT-III sub assembly) will display the Provisional DTCs reported by ECM or PCM if the ECM or PCM detects some malfunction for "Misfire", "Fuel System" and "Comprehensive" monitoring during a single driving cycle. The intended use of this data is to assist the technician after a vehicle repair, and after clearing diagnostic information, by reporting test result after a single driving cycle. Note that the test results reported by this mode do not necessarily indicate a faulty component/system. If test results indicate a failure after additional (consecutive) driving, then the Malfunction Indicator Lamp (SERVICE ENGINE SOON or Check Engine Lamp) will be illuminated and a DTC will be set.
The scan tool MB991958 (MUT-III sub assembly) will display the Provisional DTCs reported by ECM
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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.