Pcm Override Codes: Notes
PCM OVERRIDE selection allows testing of certain system functions regardless of normal program instructions, provided test conditions are met. When a test is selected, current operation of function will be displayed on Driver Information Center (DIC). If test conditions are not met, Climate Control Panel (CCP) will display "==" instead of override value selected.
Display will alternate between "--" for one second followed by normal programmed command for 5 seconds. This alternating display is a reminder that function is not currently being overridden.
Pressing WARMER button on CCP will increase override value and pressing COOLER button will decrease override value. Upon release of button, display may either remain at overridden value or automatically return to normal program control, depending on which function is being overridden. Selection of another override test will cancel current override.