Aftertreatment Control Module ( ACM ) Offline / Not Visible / Missing From Control Unit Information in Premium Tech Tool ( PTT ) - Mack

NHTSA ID Number: 10161909

Manufacturer Communication Number: K43056254

Summary

Aftertreatment Control Module ( ACM ) Offline / Not Visible / Missing From Control Unit Information in Premium Tech Tool ( PTT ) - US10 And Newer Emissions

 

7 Affected Products

Vehicles

MAKE MODEL YEAR
MACK CHU 9999
MACK CXU 9999
MACK GU 9999
MACK LE 9999
MACK LR 9999
MACK MR 9999
MACK TD 9999

Solution K43056254

Monday, June 3, 2019 6:04:14 PM CEST

** SOLUTION **

Title Aftertreatment Control Module ( ACM ) Offline / Not Visible / Missing From Control Unit Information in Premium Tech Tool ( PTT ) - US10 And Newer Emissions
Mack Models
Mack Model LEU, LR, MRU - TerraPro, CHU - Pinnacle, Axle back,  CXU - Pinnacle, Axle front, GU - Granite, TD - Titan
Volvo Models
Volvo Model VN, VNL, VNM, VNR, VNX, VAH, VHD, VT
Emission Standard
Emission Standard US10+OBD13, US14+OBD15, US14+OBD16, US17+OBD16, US17+OBD18, US17+OBD19
Engine family
Engine family 11L Engine, 13L Engine, 16L Engine, MP7, MP8, MP10
** SOLUTION **
Cause When connecting to a chassis for diagnosis or programming, the ACM may not be visible. This is not an immediate indication of a failed module. Most ACMs replaced for this issue are found to be in working condition during failure analysis.
Solution A.  When replacing an ACM, always use Replace Hardware, operation 1700-22-03-12.

B. Review the DTC Readout for communications codes that may indicate a data link problem.

C. Ensure that there are no voltage or resistance issues with power and ground to the module.

  • Ensure that there are at least 12 volts present on ACM pin 3 with Key On.

D. Unplug the ACM. Allow the chassis to sit with key on, engine off for 5 minutes. Reconnect the ACM without turning the key off.

E. Make sure that the ACM is compatible with the truck.

  • OBD13 to OBD15 (Model Years 2014 to 2016) have two compatible modules:
    • 21870087
    • 22449432
  • OBD16 and newer is only compatible with one module:
    • 22449432

F. Make sure to disconnect any third party devices (GPS, QUALCOMM etc.) that are connected anywhere to the data link, possibly on the diagnostic connector (back side).

G. Make sure Tech Tool is at version 2.5.87 or newer. Tech Tool databases are up to date (when in doubt use the Update Product Information function).

H. Remove the fuses for the TGW and ABS modules. This should only be required if there are issues with programming a module for the first time. Follow the procedure in Step H to ensure PTT has to re-identify the vehicle.

I. If the original ACM is not visible in Tech Tool, make sure to do the following steps to clean the history of the truck inside tech tool:

  1. Disconnect from the truck and then remove the truck from the latest selections list.
  2. Exit out of PTT.
  3. Using the Tech Tool Log Manager, stop the BAF services, clean up all log files and then start the BAF services.
  4. Restart PTT and connect to the truck.

J. If the ACM is still not visible, start an eService case for further assistance. The case must include:

  • A complete DTC Readout from the time of the truck's arrival.
    • A thorough description of all tests performed with results and numeric values noted ("Good" is not a value).
    • Screenshots of any errors encountered while attempting to program.
Internal comments (BO) Before shipping the pre-programmed ACM, the following steps can be performed to allow the programming of the ACM.

1. Disconnect 62 PIN connector at the ACM

2. Eliminate J1939 communication by using either of the procedures attached here.

3. Connect 62PIN connector at the ACM.

4. Program ACM using TT2.

5. If " ONLY " the ACM is still not visible, the new ACM will need to be sent to Technical Support Services after they have been contacted and a case opened.

Solution visibility Dealer distribution
Function(s)/component(s) affected
Function affected 2 1 0 ACM, Diagnostic tool
Function Group
Function Group 258 emissions after-treatment, 2841 Electronic Control Unit
Customer effect
Main customer effect calibration/programming/pairing/missing operation, diagnostics/methodology
Conditions
Vehicle operating mode when stationary
Administration
Author ut01793
Last modified by A241298
Creation date 29-11-2016 15:11
Date of last update 22-05-2019 17:05
Review date 15-02-2017 00:02
Status Published
NA_Author_Group GTT

Solution K43056254
Monday, June 3, 2019 6:04:14 PM CEST

https://www.nhtsa.gov/recalls?nhtsaId=10161909

https://static.nhtsa.gov/odi/tsbs/2019/MC-10161909-9999.pdf

Download (PDF, 17KB)


 

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Last update on 2019-10-12 / Affiliate links / Images from Amazon Product Advertising API

Last update on 2019-10-12 / Affiliate links / Images from Amazon Product Advertising API

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