TSB140071-053014

Fault Code 2198 Caused by Original Equipment Manufacturer (OEM) Keyswitch Wiring
Technical Service
Bulletin Number
TSB140071
Revision Level
Date
Page 1 of 4
Group Number
Technical Service Bulletin
Subject
Fault Code 2198 Caused by Original Equipment Manufacturer (OEM) Keyswitch Wiring
Issue
Normally Fault Code 2198 becomes active on CM2350 engines when there is a
communication problem present between the engine control module (ECM) and variable
geometry turbocharger (VGT) actuator on the J1939 data link. However, certain vehicle
keyswitch wiring configurations can also result in setting Fault Code 2198.
Certain Emergency One keyswitch configurations cause the ECM to power back ON while the
turbocharger actuator is still powering down, when the engine start/stop switch is pressed and
released to stop the engine. The actuator does not correctly process the communication from
the ECM, causing it to log an error code. This condition is not present at the next key ON, and
Fault Code 2198 should be inactive.
To prevent repeat occurrences of Fault Code 2198 and unnecessary replacement of parts,
Emergency One has revised the keyswitch wiring on certain vehicles with specific optional
equipment.
Verification
Pictured below are the previous and revised switches for reference. Also pictured below is the
location of the switch configuration on the dash of Emergency One vehicles.
https://quickserve.cummins.com/qs3/pubsys2/xml/en/tsb/2014/tsb140071.html
7/1/2014
Fault Code 2198 Caused by Original Equipment Manufacturer (OEM) Keyswitch Wiring
https://quickserve.cummins.com/qs3/pubsys2/xml/en/tsb/2014/tsb140071.html
Page 2 of 4
7/1/2014
Fault Code 2198 Caused by Original Equipment Manufacturer (OEM) Keyswitch Wiring
Page 3 of 4
If a customer experiences Fault Code 2198 on an Emergency One fire apparatus, check the
unit's keyswitch configuration. If the previous configuration is used, this can be the cause of
Fault Code 2198. If the revised configuration is used, the keyswitch configuration is likely not
the cause of Fault Code 2198. Follow the published troubleshooting for Fault Code 2198.
Resolution
Contact a local Emergency One dealer to determine applicability of the wiring update.
Emergency One dealer contact information can be found at www.e-one.com or by calling (352)
237-1122.
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.
Document History
Date
2014-5-30
Details
Module Created
https://quickserve.cummins.com/qs3/pubsys2/xml/en/tsb/2014/tsb140071.html
7/1/2014
Fault Code 2198 Caused by Original Equipment Manufacturer (OEM) Keyswitch Wiring
Page 4 of 4
Last Modified: 05-Jun-2014
Copyright © 2000-2010 Cummins Inc. All rights reserved.
https://quickserve.cummins.com/qs3/pubsys2/xml/en/tsb/2014/tsb140071.html
7/1/2014