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Home >> Buick >> 1990 >> Reatta 2D Convertible, 440T4/ME9 >> Repair and Diagnosis >> External Pages >> Different car >> Section 5 (Engine Controls - Tests W/Codes) >> ECM Trouble Code Charts >> ECM Code EO21, Shorted TPS Circuit >> Failure Conditions:
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Failure Conditions:

WARNING: This page is about a different car, the 1990 Cadillac Seville and 1990 Cadillac Eldorado. However, it is still accessible from the selected car via links, so may be relevant.

Throttle Position Sensor (TPS) value greater than or equal to 72 degrees for .7 second.