KC-415
Service Bulletin Details
Public Details for: KC-415
Diagnostic trouble code ( dtc ) P26E8 intermittently lighting the malfunction indicator lamp ( mil ); possible derate warning - us10+obd13 and newer emissions, model year 2014 and newer
- 2022 - 2021 - 2020 - 2019 - 2018 - 2017 - 2016 - 2015 - 2014 -
Models from 2021
| 2021 VOLVO VAH |
| 2021 VOLVO VHD |
| 2021 VOLVO VN |
| 2021 VOLVO VNL |
| 2021 VOLVO VNM |
| 2021 VOLVO VNR |
| 2021 VOLVO VNX |
Models from 2020
| 2020 VOLVO VAH |
| 2020 VOLVO VHD |
| 2020 VOLVO VN |
| 2020 VOLVO VNL |
| 2020 VOLVO VNM |
| 2020 VOLVO VNR |
| 2020 VOLVO VNX |
Models from 2019
| 2019 VOLVO VAH |
| 2019 VOLVO VHD |
| 2019 VOLVO VN |
| 2019 VOLVO VNL |
| 2019 VOLVO VNM |
| 2019 VOLVO VNR |
| 2019 VOLVO VNX |
Models from 2018
| 2018 VOLVO VAH |
| 2018 VOLVO VHD |
| 2018 VOLVO VN |
| 2018 VOLVO VNL |
| 2018 VOLVO VNM |
| 2018 VOLVO VNR |
| 2018 VOLVO VNX |
Models from 2017
| 2017 VOLVO VAH |
| 2017 VOLVO VHD |
| 2017 VOLVO VN |
| 2017 VOLVO VNL |
| 2017 VOLVO VNM |
| 2017 VOLVO VNR |
| 2017 VOLVO VNX |
Models from 2016
| 2016 VOLVO 780 |
| 2016 VOLVO VAH |
| 2016 VOLVO VHD |
| 2016 VOLVO VN |
| 2016 VOLVO VNL |
| 2016 VOLVO VNM |
| 2016 VOLVO VNX |
| 2016 VOLVO VT |
Models from 2015
| 2015 VOLVO VAH |
| 2015 VOLVO VHD |
| 2015 VOLVO VN |
| 2015 VOLVO VNL |
| 2015 VOLVO VNM |
| 2015 VOLVO VNX |
| 2015 VOLVO VT |
Models from 2014
| 2014 VOLVO VAH |
| 2014 VOLVO VHD |
| 2014 VOLVO VN |
| 2014 VOLVO VNL |
| 2014 VOLVO VNM |
| 2014 VOLVO VNX |
| 2014 VOLVO VT |
1/31/22, 2:49 PM Article Diagnostic Trouble Code ( DTC ) P26E8 Intermittently Lighting The Malfunction Indicator Lamp ( MIL ); Possible Derate Warning US10+OBD13 And Newer Emissions, Model Year 2014 And Newer Internal Content Overview The diagnostic process that sets P26E8 monitors voltage level to the Inlet and Outlet NOx Sensors, the PM Sensor, and the DEF Quality (Level and t0emperature) Sensor. If voltage to the sensors drops below the monitored threshold for a long enough period, an occurrence of P26E8 will log. This condition will most often occur only when power demand from all four sensors is at maximum level in the same timeframe. There may be a driver report of a 30 minute derate warning accompanying the code. Due to how specific conditions have to be to cause the code to log, P26E8 will likely appear inactive on a DTC Readout, and Guided Diagnostic steps often result in No Fault Found. P26E8 will also be accompanied by DTCs for communication loss with all of the concerned sensors ( U029D, U029E, U02A2, U02A3 ) since they will be offline during the period that voltage is below threshold. Repair 1. Assure that the 12 volt DC power connections from the battery, to the fuse(s), to the Aftertreatment Control Module ( ACM ) connector are good by taking them apart where possible and looking for a loose connection. Clean all connection points as necessary. 2. Do the same from the battery negative connections. All connectors between the batteries and the ACM should be inspected. - Take apart and clean the frame ground stud connection. 3. Thorougly check the ACM connector to ensure there is no damage or corrosion that may contribute to a poor connection. 4. Ensure all of the batteries pass a load test. The goal of these activities is to ensure that the highest voltage possible is supplied to the ACM. If The Chassis Returns Multiple Times For P26E8 1. Perform all of the above steps. 2. Replace UI the ACM. ; Live https://volvo-trkna-prod1.pegacloud.net/prweb/PRAuth/app/VolvoKM_/iNPUIKpeinqPJi2G0hH930k43USdE1gb*/!TABTHREAD9?pyActivity=%40basec… 1/2 1/31/22, 2:49 PM Article Tags k31280406 aftertreatment u029d acm u029e volvo Related links and attachments No links or attachments available u02a2 u02a3 mack Feedback Give feedback to help improve the content of this article ; Live UI https://volvo-trkna-prod1.pegacloud.net/prweb/PRAuth/app/VolvoKM_/iNPUIKpeinqPJi2G0hH930k43USdE1gb*/!TABTHREAD9?pyActivity=%40basec… 2/2