Eclipse GS L4-2350cc 2.4L SOHC MFI (2002)
Connectors
CIRCUIT OPERATION
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The power supply to the front-ECU is provided by the battery and the ignition switch (IG2).
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If the power supply system from the battery is defective, the system operates by the power supply from the ignition switch (IG2).
TECHNICAL DESCRIPTION (COMMENT)
It is suspected that the power supply circuit to the front-ECU is defective, or the wiring harness between the SWS monitor kit and the front-ECU or their
connector(s) is damaged. If the battery power supply circuit to the ECU (terminal No.7 of the front-ECU) is damaged, also check the power supply
circuit from the ignition switch (IG2) (terminal No.30 of the front-ECU), and repair if necessary.
TROUBLESHOOTING HINTS
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Malfunction of the ETACS-ECU
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Malfunction of the front-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)
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MB991862: SWS Monitor Kit
STEP 1. Use scan tool to select "ECU CHECK" on the SWS monitor display.
Check the ETACS-ECU.
CAUTION: To prevent damage to scan tool MB991502, always turn the ignition switch to the "LOCK" (OFF) position before connecting or
disconnecting scan tool MB991502. Also connect SWS monitor kit MB991862 after turning on scan tool MB991502.
