Mike's Workshop Manuals: Service manuals for every vehicle
Home >> Oldsmobile >> 1997 >> Regency >> Repair and Diagnosis >> External Pages >> Different car >> Section 29 (Engine Control Systems Tests W/Codes) >> Diagnostic Trouble Codes >> DTC P0602 - Pcm Not Programmed >> Diagnostic Procedures

Diagnostic Procedures

WARNING: This page is about a different car, the 1998 Pontiac Bonneville, 1998 Oldsmobile Regency, 1998 Oldsmobile LSS, 1998 Oldsmobile Eighty-Eight, and 1998 Buick LeSabre. However, it is still accessible from the selected car via links, so may be relevant.
  1. Perform POWERTRAIN ON-BOARD DIAGNOSTIC (OBD) SYSTEM CHECK . Read and record FREEZE FRAME and/or FAIL RECORDS data for each DTC set. After performing OBD system check, go to next step.
  2. Using special equipment, program PCM with correct software. Using scan tool, retest for DTC P0602. If DTC P0602 sets, go to next step. If DTC does not set, repair is complete.
  3. Replace PCM. Program replacement PCM using required equipment. After replacing PCM, repeat OBD system check.
scientia non olet · About Mike's Workshop Manuals