Funky Nissan Frontier
This bulletin applies to 2003-2010 Nissan Frontier vehicles equipped with the RE5R05A five-speed automatic transmission. Using CONSULT III Self Diagnosis, check for any of the following DTCs:
P1701, P1702, P1703, P1704, P1705, P1754, P1759, P1764, P1769 and/or P1774.
Check the transmission control unit (TCU) power supply and ground circuit. If OK, visually check the connector pin of TCU and Control Valve assembly for damage or bends. If TCU power supply and/or ground is no good, repair as needed.
If the connector pin of the TCU and control valve is OK, replace the control valve assembly.