Lancer Evolution L4-2.0L Turbo (4B11T/C) (2010)
Hood Switch Input Circuit
TECHNICAL DESCRIPTION (COMMENT)
If there is an error to the hood switch input signal, the. hood switch signal is no longer output to the communication line.
TROUBLESHOOTING HINTS
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The hood switch 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
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MB992006: Extra Fine Probe
STEP 1. Check hood switch connector A-48 for loose, corroded or damaged terminals, or terminals pushed back in the connector.
Q: Is hood switch connector A-48 in good condition?
YES : Go to Step 2.
NO : Repair or replace the damaged component(s). Check that the input signal of hood switch is normal.
STEP 2. Check the hood switch.
Remove the hood switch. Then check continuity between the switch terminals.