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Home › Chevrolet › 2000 › Impala LS › Repair and Diagnosis › Engine Performance › System › Engine Control System - Self-Diagnostics - 3.8L › Diagnostic Tests › DTC P0601: Control Module Read Only Memory (ROM) › Diagnostic Procedures

Diagnostic Procedures

  1. Perform On-Board Diagnostic (OBD) system check. See ON-BOARD DIAGNOSTIC (OBD) SYSTEM CHECK  under SELF-DIAGNOSTIC SYSTEM. After performing OBD system check, go to next step.
  2. Replace PCM. Program replacement PCM using required equipment. After replacing PCM, repeat OBD system check.
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