Lancer L4-2.0L (4B11) (2008)
ETACS-ECU Power Supply Circuit
TECHNICAL DESCRIPTION (COMMENT)
If the ETACS-ECU functions do not work at all, the ETACS-ECU power supply system, earth system, or ETACS-ECU may have a problem.
TROUBLESHOOTING HINTS
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The wiring harness or connectors may have loose, corroded, or damaged terminals, or terminals pushed back in the connector
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The ETACS-ECU may be defective
DIAGNOSIS
Required Special Tools:
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MB991223: Harness Set
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MB992006: Extra Fine Probe
STEP 1. Check ETACS-ECU connectors C-315 and C-317 for loose, corroded or damaged terminals, or terminals pushed back in the
connector.
Q: Is ETACS-ECU connectors C-315 and C-317 in good condition?
YES : Go to Step 2.