Lancer L4-2.4L SOHC (2005)
STEP 3. Verify trouble symptom.
Q: Which answerback function is defective?
Only the dome light : Go to Step 4.
Only the turn-signal lights : Go to Step 5.
Only the horn : Go to Step 6.
None of the dome light and the turn-signal lights and the horn : Replace the ETACS-ECU. Verify that the answerback functions work normally.
STEP 4. Verify the dome light.
Q: Does the dome light illuminate normally?
YES: Replace the ETACS-ECU. Verify that the answerback functions work normally.
NO: Refer to Inspection Procedure L-1 "Front dome light, rear dome light <vehicles without sunroof> and luggage compartment light do not
illuminate or go out normally."
STEP 5. Verify the hazard warning light.
Q: Does the hazard warning light work normally?
YES: Replace the ETACS-ECU. Verify that the answerback functions work normally.
NO: Refer to Inspection Procedure K-2 "Hazard warning lights do not flash when the hazard warning light switch is turned on."
STEP 6. Verify the horn operation.
Q: Does the horn work normally?
YES: Go to Step 21.
NO: Go to Step 7.
STEP 7. Verify which horn is defective.
Q: Which horn does not sound?
horn (HIGH) : Go to Step 8.
horn (LOW) : Go to Step 12.
horn (HIGH or LOW) : Go to Step 17.
STEP 8. Check horn (HIGH) connector A-18 for loose, corroded or damaged terminals, or terminals pushed back in the connector.
Q: Is horn (HIGH) connector A-18 in good condition?
YES: Go to Step 9.
NO: Repair or replace the damaged component(s). Refer to Harness Connector Inspection. Verify that the horn sounds normally.
