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Home >> Jeep >> 2003 >> Grand Cherokee 2WD V8-4.7L >> Repair and Diagnosis >> A L L Diagnostic Trouble Codes ( DTC ) >> Testing and Inspection >> Manufacturer Code Charts >> Heating & A/C System >> Cal Checksum Failure (AZC) (Active)

Cal Checksum Failure (AZC) (Active)

Test 1:






SYMPTOM
CAL CHECKSUM FAILURE (AZC) (ACTIVE)

WHEN MONITORED
Ignition in RUN and IOD fuse installed after a battery disconnect.

SET CONDITION
This condition is set if the calibrated check sum does not match the stored value.

POSSIBLE CAUSES
- AZC - CAL checksum failure