P1580

Diagnostic Chart:

Wiring Diagram:

The PCM provides approximately 12 volts (ignition voltage) to control movement of the cruise module motor. The feedback signal internal to the PCM monitors circuit 1886 and compares low vs high as the QDM driver is turned On and Off. If voltage levels are too low when the QDM driver is turned On, DTC P1580 will set.

DTC PARAMETERS
DTC P1580 will set if Circuit 1886 is less than seven volts when QDM driver is turned On.

IMPORTANT: The cruise move circuit is tested continuously anytime ignition is On.

DIAGNOSTIC AIDS
If an intermittent condition exists, inspect parameters on Scan tool while moving connectors and harnesses.