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Home >> Oldsmobile >> 2002 >> Intrigue GLS >> Repair and Diagnosis >> Engine Performance >> System >> Engine Controls - Self-Diagnostics - 3.5L >> Diagnostic Tests >> DTC P0602: Control Module Not PROGRAMED >> Diagnostic Procedures
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Diagnostic Procedures

  1. Did you perform the Diagnostic System Check - Engine Controls? If yes, go to next step. If no, go to DIAGNOSTIC SYSTEM CHECK - ENGINE CONTROLS  under SELF-DIAGNOSTIC SYSTEM.
  2. Reprogram PCM using correct software. See PROGRAMMING . Is action complete? If yes, go to step  4. If no, go to next step.
  3. Replace PCM. Program replacement PCM. See PROGRAMMING .
  4. Use scan tool to clear DTCs. Turn ignition off for 30 seconds. Start engine. Operate vehicle within the Conditions for Running the DTC. See CONDITIONS FOR RUNNING DTC . Does the DTC run and pass? If yes, go to next step. If no, go to step  3.
  5. Using scan tool, observe the stored information, Capture Info. Does scan tool display any DTCs that you have not diagnosed? If yes, go to DIAGNOSTIC TROUBLE CODE DEFINITIONS . If no, system is okay.
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