FixVault
Home › Cadillac › 1990 › Eldorado 4T60/ME9 › Repair and Diagnosis › Engine Performance › System › Engine Controls - Tests W/Codes › ECM Trouble Code Charts › ECM Code EO21, Shorted TPS Circuit › Failure Conditions:

Failure Conditions:

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

About FixVault