Lancer L4-2.4L SOHC (2005)
2. Measure the voltage between terminal 5 and ground.
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The voltage should equal approximately 12 volts (battery positive voltage).
Q: Is the measured voltage approximately 12 volts (battery positive voltage)?
YES: Replace the front-ECU. Verify that the taillights illuminate normally.
NO: Go to Step 5.
STEP 5. Check the wiring harness between front-ECU connector A-10X (terminal 5) and the battery.
Q: Is the wiring harness between front-ECU connector A-10X (terminal 5) and the battery in good condition?
YES: No action is necessary and testing is complete.
NO: The wiring harness may be damaged or the connector(s) may have loose, corroded or damaged terminals, or terminals pushed back in the
connector. Repair the wiring harness as necessary. Verify that the taillights illuminate normally.
Inspection Procedure I-2
Headlight and Taillight: Headlights (low-beam) do not illuminate normally.
