P1683 Speed Control Power Relay CKT or 12V Driver Circuit

NAME OF CODE
Speed Control Power Relay Circuit

WHEN MONITORED
With the ignition key on, speed control switched on.

SET CONDITION
The speed control power supply circuit is either open or shorted to ground.

THEORY OF OPERATION
The PCM monitors the voltage drop across all speed control solenoids and the power supply circuit.

POSSIBLE CAUSES
- Open and shorted power supply circuit
- Failed dump solenoid (S/C servo)