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Home >> Jeep >> 1997 >> Cherokee Country, 4WD, Part Time >> Repair and Diagnosis (Single Page) >> Engine Performance >> System >> Engine Controls - Tests W/Codes - 4.0L >> Trouble Code Tests >> Test TC-49A - Pcm Failure EEPROM Write Denied

Test TC-49A - Pcm Failure EEPROM Write Denied

NOTE: For connector terminal ID, see CONNECTOR IDENTIFICATION DIRECTORY. For component location see wiring diagram in the WIRING DIAGRAMS article.
  1. Using scan tool, perform SRI MEMORY TEST. If scan tool does not display WRITE REFUSED, Test is complete. Perform TEST VER-2A. If scan tool displays WRITE REFUSED, go to next step.
  2. Using scan tool, repeat SRI MEMORY TEST. If scan tool displays WRITE REFUSED, replace PCM and perform TEST VER-2A. If scan tool does not display WRITE REFUSED, test is complete. Perform TEST VER-2A.
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