Nissan Repair: 1987 nissan pathfinder v6 ecu error code 54, nissan pathfinder, mean error

Question
what does this error code mean? error code 54 a/t control

thank for any help  

Answer
Harry,

The transmission has an error and needs to be diagnosed.  Usually a servo is sticking and if you change the filter and fluid and disconnect the battery for five minutes after you refill it the code should go away.  If not, it will have to be professionally serviced.