TSB220251
Service Bulletin Details
Public Details for: TSB220251
This technical service bulletin was issued for bosch? Aftertreatment diesel exhaust fluid (def) dosing unit replacement for fault code 3559.
- 9999 -
Models from 9999
9999 CUMMINS L9 |
1/5/23, 1:23 PM Bosch® Aftertreatment Diesel Exhaust Fluid (DEF) Dosing Unit Replacement for Fault Code 3559 Active/Inactive Technical Service Bulletin Technical Service Bulletin: TSB220251 Released Date: 07-Dec-2022 Bosch® Aftertreatment Diesel Exhaust Fluid (DEF) Dosing Unit Replacement for Fault Code 3559 Active/Inactive Bosch® Aftertreatment Diesel Exhaust Fluid (DEF) Dosing Unit Replacement for Fault Code 3559 Active/Inactive Warranty Statement The information in this document has no effect on present warranty coverage or repair practices, nor does it authorize TRP or Campaign actions. Information Only - OEM Related Matter Not Covered By Cummins® - Contact Appropriate OEM Dealer or OEM Representative For Additional Information Contents Product Affected L9 CM2350 L123B (Gillig™) L9 CM2350 L123B (NOVABUS) L9 CM2350 L123B (New Flyer™) Issue Symptom: Fault Code 3559 Root Cause: OEM wiring connector to the aftertreatment DEF dosing unit is loose at the back of the connector at the weather pack seal (see Figures). https://quickserve.cummins.com/qs3/pubsys2/xml/en/tsb/2022/tsb220251.html 1/4 1/5/23, 1:23 PM Bosch® Aftertreatment Diesel Exhaust Fluid (DEF) Dosing Unit Replacement for Fault Code 3559 Active/Inactive Figure 1, Loose Wire at Back of OEM Wiring Connector to Aftertreatment DEF Dosing Unit. Figure 2, Loose Wire at Back of OEM Wiring Connector to Aftertreatment DEF Dosing Unit. https://quickserve.cummins.com/qs3/pubsys2/xml/en/tsb/2022/tsb220251.html 2/4 1/5/23, 1:23 PM Bosch® Aftertreatment Diesel Exhaust Fluid (DEF) Dosing Unit Replacement for Fault Code 3559 Active/Inactive Figure 3, Loose Wire at Back of OEM Wiring Connector to Aftertreatment DEF Dosing Unit. Verification Verify Fault Code 3559 is active or inactive. Locate OEM harness aftertreatment DEF dosing unit connector. Pull up OEM harness wire cover on the backside of the aftertreatment DEF dosing unit connector. Check for loose weather pack seal (see Figures). Resolution See equipment manufacturer service information to repair or replace the aftertreatment DEF dosing unit connector. Document History Date 2022-12-5 Details Module Created Last Modified: 07-Dec-2022 https://quickserve.cummins.com/qs3/pubsys2/xml/en/tsb/2022/tsb220251.html 3/4 1/5/23, 1:23 PM Bosch® Aftertreatment Diesel Exhaust Fluid (DEF) Dosing Unit Replacement for Fault Code 3559 Active/Inactive https://quickserve.cummins.com/qs3/pubsys2/xml/en/tsb/2022/tsb220251.html 4/4