TDC Offset Learn Procedure (6.5L Diesel)
WARNING: This page does not describe the selected car, but rather 69 other vehicles, including the 1999 Saturn SW2, 1999 Saturn SW1, 1999 Saturn SL2, 1999 Saturn SL1, and 1999 Saturn SL. However, it is still accessible from the selected car via links, so may be relevant.
PCM will automatically activate TDC offset program when engine coolant is greater than 170°F (77°C) and engine speed is 900 RPM or less. A momentary engine stumble will occur once engine has reached desired temperature and RPM. This is an indication that PCM auto learn function has been activated. If offset is programmed out of range, DTC P1214 will set.