Output Test Mode: Description
WARNING: This page is about a different car, the 2002 Mercury Villager. However, it is still accessible from the selected car via links, so may be relevant.
Output Test Mode (OTM) aids in repairing output actuators associated with PCM. It allows technician to energize and de-energize most system output actuators on command. When entering OTM, outputs can be operated without controlling cooling fans. Low and high speed cooling fans may be operated separately without energizing other outputs.