Diagnostic Aids
Perform this test when instructed during QUICK TEST or if directed by other test procedures. DTC P1270 indicates 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.