Question

I have a 2000 Nissan Sentra, what should it cost to replace the A/T control unit if that's what the problem is? I have the code P0600

Answer 1

The a/t  control module is part of the ecm, the listed cost for the ecm is $600 and the labor about 1 hour.

Answer 2

P0600 NISSAN - A/T Control Serial Communication Link Malfunction

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