Question about 2000 Jeep Grand Cherokee

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Heater diagnostic codes (2000 jeep grand Cherokee)

I ran the heater diagnistic and I got 3 codes: 49, 53, 56. can you tell me what they mean?
Thanks

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49- dimming input is in error
53-door range travel was to small
56-door range travel was too large
I am not sure what they mean. I just happen to have the book of codes

Posted on Feb 03, 2009

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