Eclipse V6-3.0L SOHC (2003)
STEP 2. Check the input signal by using "FUNCTION DIAGNOSIS" of the SWS monitor.
Check the input signals from the following switches:
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Ignition switch: ON
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Lighting switch: HEAD
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Dimmer switch: ON
Operate the MUT-II according to the procedure below to display "HEADLIGHT HI."
1. Select "SYSTEM SELECT."
2. Select "SWS."
3. Select "SWS MONITOR."
4. Select "FUNCTION DIAGNOSIS"
5. Select "LIGHTING."
6. Select "HEADLIGHT HI."
Check that normal conditions are displayed on the items described in the table.
Q: Does the scan tool display the items "HEADLIGHT SW", "DIMMER SW", "H/L AUTO-CUT" and "FRONT ECU ACK" as normal condition?
YES: Replace the front-ECU. Check that the headlights (high beam) illuminate normally.
NO:
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The scan tool does not show the respective normal condition for item "HEADLIGHT SW." Refer to Inspection Procedure O-8 "ETACS-ECU
does not receive a signal from the headlight switch."
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The scan tool does not show the respective normal condition for item "DIMMER SW." Refer to Inspection Procedure O-7 "ETACS-ECU does not
receive a signal from the dimmer switch."
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The scan tool does not show the respective normal condition for item "H/L AUTO-CUT." Refer to Inspection Procedure J-9 "Headlight automatic
shutdown function does not work normally."
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The scan tool does not show the respective normal condition for item "FRONT ECU SW." Replace the front-ECU. Check that the headlights (high
