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
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.
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.
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:
J. If the ACM is still not visible, start an eService case for further assistance. The case must include:
|
| 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 |
7 Affected Products
Vehicles
1 Associated Document
Manufacturer Communications
Solution K43056254
Monday, June 3, 2019 6:04:14 PM CEST
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