Detroit Diesel HD Air & ATS Diagnostics Sign Up

Location: Wentzville
Date: 4/24/2024 - 4/26/2024
Fee: $1425.00
Available Seats: 4
The Detroit Diesel DD HD engine Air & ATS three day ILT course is designed to give students an understanding of the air and aftertreatment systems with an emphasis on diagnostics. 


Prerequisites: Students are required to have previously attended the DD HD Engine Diagnostics class, DD HD Engine Major Repair class, DD HD Engine Fuel Diagnostics class along with the respective web based courses and exams prior to attending this class.

The material that will be covered in this class includes the following:
 
  • MCM – ACM2 
  • Hardware/Software              
    • Regeneration and zone triggering
    • Parked regeneration
    • Fault codes
    • Auto elevate feature enhancements
    • Powernet distribution box
    • Fuel system diagnostics
    • Quantity control valve diagnostics
    • Idle speed balance diagnostics
  • SCR System Overview
    • SCR operating principles
    • SCR system operation
    • DEF quality exercises
    • MY11 inducements for low DEF level (quantity)
    • MY11 Inducements for contaminated DEF (quality)
    • MY11 inducements for extended SCR faults
    • Inducement recovery strategies
    • Recommended maintenance intervals
  • SCR Configuration
    • Review of ATS configurations
    • 1 box system schematic
    • 1 box design details
    • 1 box flow
    • Sensor box on 1 box system
    • NOX sensor behavior and conversion
    • NOX sensor testing
  • DEF Air System
    • DEF air system parameters
    • Pressure limiting unit operation
    • Positive and no battery shut off
    • Negative battery shut off
    • DEF air system flow
  • DEF fluid system
    • DEF tank pickup with integrated header
    • DEF tank filling and freezing
    • DEF Lines with VOSS connectors
    • DEF pump module
    • DEF pressure parameters
    • Pump current parameters
    • DEF metering unit
    • DEF dosing (low and High RPM)
    • DEF Nozzle
    • DEF system purge cycles
    • DEF Flow
  • DEF Coolant System
    • DEF coolant valve
    • 13 and 23 gallon DEF coolant line identification
    • 6 gallon DEF coolant line identification
    • DEF tank components
    • Complete system overview
  • Electronics and Diagnostics Software
    • Electronic controls
    • ACM2 module
    • ACM2 communication
    • Powernet wiring
    • DDDL software overview
    • SCR service routines
    • DEF quanity test
    • SCR air pressure system check
    • SCR efficiency test
    • DEF coolant valve control
    • Output component test
    • DPF ash accumulator
    • SCR replacement
    • Voltage service routine
    • 1 box and metering unit harness connections
  • OBD Diagnostics
    • Elements of OBD
    • OBD monitors
    • Malfunction indicator lamp and drive cycle
    • 1 cycle fault reaction – confirmed, active
    • 2 cycle fault reaction – pending, active code
    • 2 cycle fault reaction – confirmed, active code
    • 2 cycle fault reaction – confirmed, previously active
    • 2 cycle fault reaction – previously confirmed, previously active
    • Fault clearing drive cycles
    • Permanent fault information
    • Freeze frame data
    • CEL, MIL, and SEL parameters

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