Lancer L4-2.0L (4B11) (2008)
2. Measure the voltage between ETACS-ECU connector C-307 terminal 2 and ground.
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The voltage should measure approximately 12 volts (battery positive voltage).
3. Measure the voltage between ETACS-ECU connector C-309 terminal 1 and 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 7.
NO : Go to Step 6.
STEP 6. Check the wiring harness between ETACS-ECU connectors C-307 (terminal 2) or C-309 (terminal 1) and the fusible link (36) or (34).
Q: Is the wiring harness between ETACS-ECU connectors C-307 (terminal 2) or C-309 (terminal 1) and the fusible link (36) or (34) 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. The system should communicate with the ETACS-ECU normally.
STEP 7. Retest the system Check that the ETACS-ECU functions work normally.
Q: Is the check result satisfactory?
YES : The procedure is complete (If no malfunctions are found in all steps, an intermittent malfunction is suspected. Refer to general (Body and
Chassis) How to Use Troubleshooting/Inspection Service Points How to Cope with Intermittent Malfunction).
NO : Replace the ETACS-ECU.
Trouble Symptom Chart