Lancer L4-2.4L SOHC (2005)
STEP 9. Check the horn. Connect the battery as shown, and Verify that the horn sounds.
Q: Is the horn normal?
YES: Go to Step 10.
NO: Replace the horn. Verify that the horn sounds normally.
STEP 10. Check horn relay connector A-05X for loose, corroded or damaged terminals, or terminals pushed back in the connector.
Q: Is horn relay connector A-05X in good condition?
YES: Go to Step 11.
NO: Repair or replace the damaged component(s). Refer to Harness Connector Inspection. Verify that the horn sounds normally.