What does the fault code p-1618 mean.
Codep1618 indicates a failur in comunications between the engine control prosesor and the automatic trans axle prosesor.the ecm/pcm stores the trouble info as freeze frame 'and the check engine lamp(mil) will light.the mill will be turned off after 3 on the 3rd trip cycle if the foult is no longer present.the freeze frame info will clear after 40 consecutive worm-up cycle have ocurred with out a foult.
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