Lancer L4-2.4L SOHC (2005)
Normal conditions are displayed for all the items : Replace the ETACS-ECU. The light reminder tone alarm function should now work
normally.
The scan tool does not show the respective normal condition for item "HEADLIGHT SW" : Refer to Inspection Procedure M-5
"ETACS-ECU does not receive any signal from the headlight switch."
The scan tool does not show the respective normal condition for item "TAILLIGHT SW" : Refer to Inspection Procedure M-5
"ETACS-ECU does not receive any signal from the tail light switch."
The scan tool does not show the respective normal condition for item "IG SW (IG1)" : Refer to Inspection Procedure M-2 "ETACS-ECU
does not receive any signal from the ignition switch (IG1)."
The scan tool does not show the respective normal condition for item "FRONT DOOR SW" : Refer to Inspection Procedure M-4
"ETACS-ECU does not receive any signal from the driver's or the front passenger's door switch7."
The scan tool does not show the respective normal condition for item "H/L AUTO-CUT" : Refer to Inspection Procedure I-9 "Headlight
automatic shutdown function does not work normally."
The scan tool does not show the respective normal condition for item "BUZZER" : Replace the ETACS-ECU. The light reminder tone alarm
function should now work normally.
Inspection Procedure B-3
Tone Alarm: Seat belt tone alarm function does not work normally.
Seat Belt Tone Alarm Function
CIRCUIT OPERATION
The ETACS-ECU operates the seat belt tone alarm function intermittently according to signals from the following switches:
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Ignition switch (IG1): ON
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Driver's seat belt switch: ON
The ETACS-ECU operates the seat belt tone alarm function intermittently under the following conditions:
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Ignition switch: ON or START
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Driver's seat belt: UNFASTENED
TECHNICAL DESCRIPTION (COMMENT)
If the function does not work normally, the input circuit system from the switches or the ETACS-ECU may be defective (refer to "CIRCUIT
OPERATION").
TROUBLESHOOTING HINTS
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The driver's seat belt 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