How to Operate Fast Idle Using Cruise Control

How to Operate Fast Idle Using Cruise Control - Gen 5 DD15 - Ops - #7628

Set the fast idle as follows:

  1. The vehicle must be at base idle, transmission in neutral, and parking brake set.
  2. Turn the Cruise Enable ON to activate the fast idle. If the Cruise Enable Switch is left in the ON position at key OFF, the switch must be cycled OFF then ON.
  3. The engine rpm should set to a pre-defined speed.
  4. Use RSM/ACC to increase engine rpm.
  5. Use SET/CST to decrease engine rpm.
  6. Turning the Cruise Enable OFF, will disable the fast idle.
Note:
Parent topic: How to Operate the Cruise Control and Fast Idle
Document Number: 0000009806
Manual Publication Date: 2024-01-03
Topic Publication Date: 2023-12-10