Lancer Sportback L4-2.4L (4B12) (2010)
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3. Measure the voltage between the terminal No.7 and the ground.
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The voltage should measure approximately 12 volts (battery positive voltage).
Q: Is the measured voltage approximately 12 volts (battery positive voltage)?
YES : Go to Step 5.
NO : Go to Step 3.
STEP 3. Check the ignition switch.
Remove the ignition switch. Then check continuity between the switch terminal.
Q: Is the ignition switch in good condition?
YES : Go to Step 4.
NO : Replace the ignition switch. Check that the input signal of ignition switch (ACC) is normal.
STEP 4. Check the wiring harness between ETACS-ECU connector C-317 (terminal 7) and the ignition switch (ACC).
Check the power supply line (ACC) for open circuit and short circuit.
Q: Is the wiring harness between ETACS-ECU connector C-317 (terminal 7) and ignition switch (ACC) in good condition?
YES : Go to Step 5.
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. Check that the input signal of ignition switch (ACC) is normal.
STEP 5. Using scan tool MB991958, check data list.
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Ignition switch: ACC
