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1990
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ES 250 Automatic
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Repair and Diagnosis
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Engine Performance
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System
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Engine Controls - System/Component Tests
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Computerized Engine Controls
Computerized Engine Controls
CAUTION:
DO NOT
touch ECU terminals. Use care when removing ECU connectors as they are easily damaged.
Fig 1: Identifying ES250 ECU Terminals
Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002