2003-07 6.0L Diesel: Description

CAUTION: Strict observance of posted speed limits and attention to driving conditions are mandatory when proceeding through the drive cycle.

NOTE: Vehicles equipped with power take-off (PTO) or auxiliary idle control must have that system disengaged before the OBD drive cycle is initiated.

The primary intention of the OBD drive cycle is to clear the DTC P1000 and to satisfy the specifications for the Society of Automotive Engineers (SAE) specification J1979. Each OBD monitor must run during the drive cycle.

If the drive cycle is completed and P1000 is not cleared, repeat the entire drive cycle. If a particular step is interrupted, simply repeat the drive mode. If the drive cycle is interrupted with a key-off, only drive modes that were incomplete must be run.

Rough road conditions may prevent certain steady state conditions and steady accelerations from validating the transmission and load-related monitors.