Lancer L4-2.4L SOHC (2005)
If the high-beam indicator light does not illuminate, the high-beam indicator light bulb or the ETACS-ECU may be defective.
TROUBLESHOOTING HINTS
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The high-beam indicator light bulb may be defective
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The ETACS-ECU may be defective
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The wiring harness or connectors may have loose, corroded, or damaged terminals, or terminals pushed back in the connector
DIAGNOSIS
Required Special Tools:
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MB991223: Harness Set
STEP1. Verify the headlight operation.
Q: Do the headlights illuminate?
YES: Go to Step 2
NO: Repair the headlights first. See: Symptom Related Diagnostic Procedures/Symptom Charts
STEP 2. Check ETACS-ECU connector C-228 for loose, corroded or damaged terminals, or terminals pushed back in the connector.
Q: Is ETACS-ECU connector C-228 in good condition?
YES: Go to Step 3.
NO: Repair or replace the damaged component(s). Refer to Harness Connector Inspection. Verify that the high-beam indicator light illuminates
normally.
STEP 3. Check at ETACS-ECU connector C-228 in order to check the high-beam indicator light circuit.
1. Disconnect ETACS-ECU connector C-228, and measure at the wiring harness side.
2. Turn the ignition switch to the "ON" position.
