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.
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HOMESERVICE MANUALSMITSUBISHI2009LANCER L4-2.4L (4B12)REPAIR AND DIAGNOSISPOWERTRAIN MANAGEMENTCOMPUTERS AND CONTROL SYSTEMSTESTING AND INSPECTIONPINOUT VALUES AND DIAGNOSTIC PARAMETERS
2009 Mitsubishi Lancer L4-2.4L (4B12)
Pinout Values and Diagnostic Parameters
2009 Mitsubishi Lancer L4-2.4L (4B12)SECTION Pinout Values and Diagnostic Parameters
CHECK AT THE ENGINE CONTROL MODULE (ECM)
1. Disconnect the ECM connectors B-108 and B-109, and connect check harness special tool MB992110 between the ECM connectors.
2. Measure the voltage between each check harness connector terminal and check harness connector ground terminal (No. 81 or No. 93).
TERMINAL VOLTAGE CHECK CHART
TERMINAL RESISTANCE AND CONTINUITY CHECK
1. Disconnect the ECM connectors B-108 and B-109, and connect check harness special tool MB992110 between the ECM connectors.
2. Measure the voltage between each check harness connector terminal and check harness connector ground terminal (No. 81 or No. 93).
TERMINAL VOLTAGE CHECK CHART
Terminal Voltage Check Chart (Part 1):
Terminal Voltage Check Chart (Part 2):
Terminal Voltage Check Chart (Part 3):
Terminal Voltage Check Chart (Part 4):
Terminal Voltage Check Chart (Part 5):
Terminal Voltage Check Chart (Part 6):
TERMINAL RESISTANCE AND CONTINUITY CHECK
Terminal Resistance And Continuity Check (Part 1):
Terminal Resistance And Continuity Check (Part 2):
RENDER: 1.0x
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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.