Fail-safe Function
WARNING: This page is about a different car, the 2011 Acura TL, 2010 Acura TL, and 2009 Acura TL. However, it is still accessible from the selected car via links, so may be relevant.
When an abnormality occurs in the signal from a sensor, a switch, a solenoid valve, or from another control unit, the PCM ignores that signal and substitutes a pre-programmed value for them that allow the automatic transmission to continue driving This causes a DTC to be stored and the D indicator to blink and/or the MIL to come on The transmission may not shift normally during fail-safe operation Do not run the test driving diagnosis when the MIL is ON, or the indicator is blinking