P1584

Wiring Diagram:

DTC P1584 will set if the PCM disengages the cruise. Normal driver induced commands such as brake On/Off, cruise switch On/Off, etc., will not set this DTC. It is possible, however, for a driver to induce this DTC with abnormal driving maneuvers. An example would be shifting from D4 to neutral or applying the emergency brake while cruise is engaged.

DTC PARAMETERS

The PCM will disengage cruise and set DTC P1584 if any of the following conditions are met:

^ Ignition 1 voltage is less than 10V or greater than 16V DC.

^ Vehicle acceleration is greater than 16 km/h (10 mph per sec) or traction active.

^ Decel is greater than 16 km/h (4.0 mph per sec).

^ Speed error (difference between set speed and actual vehicle speed) is greater than 24 km/h (15 mph) for 10 seconds or greater than 32 km/h (20 mph) instantaneously. May be caused if on steep hills or a manual transaxle vehicle if engine is lugging in too high of a gear.

^ Engine speed out of range rpm if less than 950 or greater than fuel cutoff rpm while in cruise.

^ Gear out of range (invalid gear ratio selection for cruise).

^ Park/Neutral position switch possible failure (automatic trans axle only).

TESTING

Use of the MALF history records in Scan tool parameter will help diagnose driver induced versus system failures. Inspect the "Disable" bits at the bottom of the MALF table (i.e., Disable PRNDL Fail, Disable Volt Out of Range, etc). Did the failed parameter pass since failure? Has it failed since code clear, this ignition cycle?