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Home › Cadillac › 1990 › Seville STS, 4T60/ME9 › Repair and Diagnosis › Engine Performance › System › Engine Controls - Tests W/Codes › ECM Trouble Code Charts › ECM Code EO26: Shorted Throttle Switch Circuit › Test Conditions:

Test Conditions:

Code EO21 and EO22 clear and throttle angle is 20-75 degrees.

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