Trouble code P1682 means: Charging system voltage too low
Charging system voltage too low.
You have to find the cause of the charging system malfunction. It could be the alternator, wiring, or PCM.
Trouble code P1682 means: Ignition 1 Switch Circuit 2
P1682 A/T FI Signal A High Input (Acura, Honda)P1682 Charging System Voltage Too Low (Chrysler, Jeep)
Trouble code P0442 means:Evaporative emission control system leak detected (Small leak)
Trouble code PO121 means:Throttle position circuit out of range or performance problem
Scan for codes, some parts stores do it free....Advance auto.
The plug-in for a code reader on a 1990 Dodge Dakota is located under the hood along the firewall.
Trouble code P0743 means: Torque Converter Clutch Solenoid Circuit Electrical
It is done flashing codes. If that is the only message you got, there are no codes present.