Lancer LS L4-2.0L SOHC (2002)
Connectors
CIRCUIT OPERATION
The ETACS-ECU operates the following equipment or functions by the interior light loaded signal:
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Interior light automatic shutoff function
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Front dome light, rear dome light and luggage compartment light
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Door-ajar indicator light
TECHNICAL DESCRIPTION (COMMENT)
If the signal is not normal, the equipment or functions, which are described in "CIRCUIT OPERATION", do not work normally.
TROUBLESHOOTING HINTS
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Malfunction of the ETACS-ECU
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Damaged harness wires or connectors
DIAGNOSIS
Required Special Tools:
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MB991223: Test Harness Set
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MB991502: Scan Tool (MUT-II)
STEP 1. Measure at ETACS-ECU connector C-226 in order to check the fusible link 1. line of power supply system to ETACS-ECU.
1. Disconnect ETACS-ECU connector C-226, and measure at the junction block side.
2. Measure the voltage between terminal 19 and ground.
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The measured value should be approximately 12 volts (battery positive voltage).
Q: Does the measured voltage correspond with this range?