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Symptom: EEPROM CHECKSUM ERROR (ACTIVE) When Monitored and Set Condition: EEPROM CHECKSUM ERROR (ACTIVE) When Monitored: Ignition in RUN and IOD fuse installed after a battery disconnect. Set Condition: This DTC is set if the calculated check sum does not match the stored value. POSSIBLE CAUSES ATC - EEPROM CHECKSUM ERROR TEST ACTION APPLICABILITY 1 When this code is present, the ATC must be replaced. All Repair Replace the ATC. t, reset the ATC after repair is complete. Perform BODY VERIFICATION TEST - VER 1. 337 AUTOMATIC TEMPERATURE CONTROL |