Diagnostic Aids
WARNING: This page does not describe the selected car, but rather 32 other vehicles, including the 2003 Mercury Sable, 2003 Mercury Mountaineer, 2003 Mercury Marauder, 2003 Mercury Grand Marquis, and 2003 Lincoln Town Car. However, it is still accessible from the selected car via links, so may be relevant.
Perform this test when instructed during QUICK TEST or if directed by other test procedures. DTC P0219 (engine overspeed), P0297 (vehicle overspeed) and P1270 indicate that vehicle was operated in a manner which caused engine or vehicle speed to exceed a calibrated limit. Possible causes are:
- Wheel Slippage Caused By Mud, Ice, Water, Snow, Etc.
- Excessive Engine RPM In Neutral
- Vehicle Driven At Excessive Rate Of Speed
NOTE:
On vehicles with 4WD, ensure 4WD system is operating properly. Improper use or operation of 4WD system may cause DTC P1270 to be stored in PCM. See appropriate DIAGNOSIS article in TRANSFER CASES for diagnosis and testing.