KC-274

8/31/2021
Article
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Mack Chassis - Vehicles Equipped With A Vertical
Selective Catalytic Reduction (SCR) System Diagnostic Trouble Codes ( DTC ) P1031 With
Possible P24DA Lighting The Malfunction Indicator
Lamp ( MIL ) - US17+OBD16 (GHG17, Common Rail
Fuel System) Emi
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Internal Content
DO NOT Replace the PM sensor for P1031 and/or P24DA on
vehicles configured as described above prior to performing the
steps below.
Verify the chassis emissions level
- Details can be found in the Product Details box on the Product
tab in PTT as seen below:
Review the Detailed Status Information for the relevant code on
the DTC Readout.
;
Once the chassis is confirmed to be US17+OBD16 or US17+OBD18:
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Software improvements have been made that address this DTC.
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There are two documents that should be reviewed:
Article
1. Product Improvement PI0883 Engine Control Module (ECM)
and Aftertreatment Control Module (ACM), Software Updates
was released July 2018. This product improvement should
appear under the Campaigns section of the Product screen of
Premium Tech Tool (PTT) when first connecting to the vehicle.
Applicability to this campaign should be checked first.
- The Service Program document can be found on the
dealer Mack Trucks eMedia.
• Note: There will be a prompt to sign in to the Trucks
Dealer Portal site if necessary.
• Searching for PI0883 will return a link to the bulletin.
- If the PI applies to the product it is not necessary to
proceed to the Field Service Bulletin below.
2. Field Service Bulletin FSB 284-067 Engine Control Module
(ECM) and Aftertreatment Control Module (ACM),
Reprogramming has been released and should be reviewed if
the Product Improvement does not apply to the vehicle.
- The FSB document can be found on Mack Trucks eMedia or
under the Service tab in Impact.
• Searching for 284-067 will return a link to the document
in either application.
3. If either of the above documents applied and there are no
other issues present, the vehicle should be released when
software updates have been completed.
If software is current according to the bulletin, refer to CBR
Solution CBR-193 for more information.
If other symptoms or related codes are present, normal
diagnostics will need to be performed to determine the cause.
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Tags
k00527512
p103100
p1031
p1031-00
p24da-00
p24da00
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