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Home >> Isuzu >> 2000 >> Hombre S, 4.3 W >> Repair and Diagnosis >> Engine Performance >> System >> Engine Controls - Self-Diagnostics - 4.3L >> Diagnostic Trouble Code Identification >> DTC P0602: VCM Not Programmed >> Diagnostic Procedures

Diagnostic Procedures

  1. Perform On-Board Diagnostic II (OBD-II) System Check. See SELF-DIAGNOSTICS - INTRODUCTION article. Retrieve and record FREEZE FRAME and/or FAIL RECORDS data for each DTC set. Go to next step.
  2. Flash VCM with correct software. See PROGRAMMING . If DTC P0602 is reset, go to next step. If DTC P0602 is not reset, go to step  5.
  3. Verify all equipment being used is functioning properly. Check that all cable connections are clean and tight. Repeat attempt to flash VCM. If DTC P0602 is reset, go to next step. If DTC P0602 is not reset, go to step  5.
  4. Replace VCM. Program replacement VCM. See PROGRAMMING . After VCM replacement, go to next step.
  5. Using scan tool, select DTC, CLEAR INFO function. Start engine and allow it to reach operating temperature. Using scan tool, select DTC, SPECIFIC function and enter DTC P0602. Operate vehicle within conditions required to set DTC. If scan tool displays RAN AND PASSED, go to next step. If scan tool does not display RAN AND PASSED, return to step  2.
  6. Using scan tool, select Read and Record INFO, REVIEW INFO function. If any undiagnosed DTCs are displayed, diagnose affected DTCs. If no DTCs are displayed, system is okay.
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