CORRECTION: contiued: 2000 & LATER ISUZU NPR; CHEVY FORWARD; GMC TILTMASTER TPS RELEARN PROCEDURE Confirmation of Relearn Stop the engine. Turn the starter switch to the “ON” position, the “Check Trans” lamp should begin flashing again. Depress the accelerator pedal fully and release the pedal slowly. NOTE: If the WOT voltage is out of spec, or the TCM did not learn any value, the “Check Trans” lamp will continue to flash continuously. In this case begin the relearn procedure over again. If the relearn was successful, The flashing will stop. NOTE: This manual relearn procedure is complicated at best. If it must be done multiple times because of unsuccessful attempts, it may be wise to have it done at the dealer or by a TECH II or Mastertech scan tool that you have or can acquire. OBD-II DIAGNOSTIC CONNECTOR Figure 1 OBD-II DIAGNOSTIC CONNECTOR JUMP TERMINALS 4 AND 11 TO INITIATE TPS RELEARN PROCEDURE 11 4 Copyright © 2004 ATSG " 2 0 0 5 "  S E M I N A R  I N F O R M A T I O N Automatic Transmission Service Group SLIDE 89