LEMON Manuals: Even more car manuals for everyone: 1960-2025
Home >> Cadillac >> 1987 >> Seville >> Repair and Diagnosis >> Engine Performance >> System >> DFI ECM Tests W/Codes >> Diagnosis & Testing >> Hard Code EO55 - TPS Out Of Adjustment >> ISC Plunger Extension Procedure
July 1: So it begins. Don't worry, this is not in the correct legal jurisdiction!

ISC Plunger Extension Procedure

  1. Connect ISC terminal "D" to 12 volts at the battery or junction.
  2. Connect the ISC terminal "C" to ground until the ISC plunger is partially or fully extended. If the ISC motor fails to extend, disconnect and reconnect terminal "C" to ground to "bump" the motor from its stalled position.
scientia non olet · About LEMON Manuals