TSB210192

10/4/21, 9:37 AM
Engine Wiring Harness Malfunctions Causing Datalink Fault Codes
Technical Service Bulletin
Technical Service Bulletin: TSB210192
Released Date: 03-Sep-2021
Engine Wiring Harness Malfunctions Causing Datalink Fault Codes
Engine Wiring Harness Malfunctions Causing
Datalink Fault Codes
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.
Contents
Product Affected
ISX12 CM2350 X102
ISX15 CM2350 X101
X12 CM2350 X119B
X12 CM2450 X137B
X15 CM2350 X114B
X15 CM2350 X116B
X15 CM2350 X130C
X15 CM2350 X140C
X15 CM2450 X124B
X15 CM2450 X134B
Issue Summary
Symptom:
Amber Check Engine Light
A fault code is active or has more than one inactive count within the last twenty-five engine
operating hours from the following list: 1894, 2771, 3232, 3868, 3911, 4151, 4152, 4572,
4677, or 6688.
Root Cause:
Use of dielectric grease in connector
Water intrusion into connectors
OEM after treatment jumper wiring harness
After treatment connectors
14-pin OEM crossover connector
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Engine Wiring Harness Malfunctions Causing Datalink Fault Codes
Verification
1. If checking a connector while following the published troubleshooting tree, visually inspect the
connector for evidence of dielectric grease usage. See Figure 1 below.
Figure 1, Dielectric Grease in Connector.
2. If checking a 14-pin connector while following the published troubleshooting tree, inspect
connector for evidence of water intrusion or corrosion. See Figure 2 and Figure 3 below.
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Engine Wiring Harness Malfunctions Causing Datalink Fault Codes
Figure 2, Evidence of Water Intrusion or Corrosion.
Figure 3, Evidence of Water Intrusion or Corrosion.
Resolution
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Engine Wiring Harness Malfunctions Causing Datalink Fault Codes
If there is evidence of dielectric grease usage in a connector, remove the dielectric grease and
clean the connector.
If there is evidence of water intrusion through into a connector, follow the corresponding
service manual procedure to repair or replace the connector.
Document History
Date
2021-8-30
Details
Module Created
Last Modified: 03-Sep-2021
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