546 7 ELECTRONIC CONTROL SYSTEMS DIAGNOSTICS
• When DTC 142 is active the amber ENGINE lamp
is not illuminated.
DTC 215
VSS signal frequency out-of-range high
• DTC 215 is set by the ECM when the E CM detects
a VSS signal greater than 4365 Hz.
Tools
• EST with MasterDiagnostics® software
• EZ-Tech® interface cable
• Electrical System Troubleshooting Guide (tru ck
manual)
• Electrical Circuit Diagrams (truck manual)
EGES-270-1
Read all safety instructions in the "Safety Information" section of this manual before doing any procedures.
Follow all warnings, cautions, and notes.
© August 2008 Navistar, Inc.
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