2010 Peterbilt Kenworth CECU3 P30-1009 Electrical Diagnostic Manual


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Covers: 2010 Peterbilt & Kenworth models equipped with CECU3 with Chassis Node software versions (P30-1009)

  • PB: 365, 367, 384, 386, 388, 389
  • KW: C500, T440/T470, T660, T800, W900

Pages: 197
Compatibility: Windows/Mac/Tablet

This manual contains troubleshooting information covering trucks equipped with software version “CECU3 with Chassis Node” (P30-1009). Prior versions covered in a separate manual.

Topics in the 2010 Peterbilt Kenworth CECU3 P30-1009 Electrical Diagnostic Manual:

Electronic Service Analyst (ESA)
What Control Unit Do I Have
Models–Build Dates
Control Unit Identification
Control Unit Comparison Chart
Control Unit Location
Electronic Service Analyst (ESA)
New Features of ESA 3
Service Resources
Parameter Part Numbers
Functional Description
ICU/CECU Architecture
Cluster Components
Commercial Vehicle Smart Gauges (CVSG)
Instruments and Controls Operation
Instrumentation Troubleshooting Procedures
Highline Diagnostic Codes
Databus Gauge(s) Inoperative
Primary Air Pressure Gauge Inoperative
Secondary Air Pressure Gauge Inoperative
Application Air Pressure Gauge Inoperative
Air Filter Restriction Pressure Gauge Inoperative
Fuel Filter Restriction Pressure Gauge Inoperative
Ammeter Gauge Inoperative
Pyrometer Gauge Inoperative
Front Drive Axle Oil Temperature Gauge
Rear Drive Axle Oil Temperature Gauge
Center/Steer Axle Oil Temperature
Gauge Inoperative
Transmission Oil Temperature Gauge
Auxiliary Transmission Oil Temperature
Gauge Inoperative
Transfer Case Oil Temperature Gauge Inoperative
PTO Oil Temperature Gauge Inoperative
Brake Saver Oil Temperature Gauge Inoperative
General Oil Temperature Gauge Inoperative
Primary Fuel Gauge Inoperative
Secondary Fuel Gauge Inoperative
Engine Related DTCs
Outside Air Temperature Display Inoperative
CVSG Supply Open or Shorted
Dash Dimmer Input Open or Shorted,
Dash Dimmer Output Shorted
Lite Diagnostic Procedure
Lite Terminating Resistor Test Procedure
Lite Short Circuit Test Procedure
Lite Short to Chassis Ground Test Procedure
Lite Open Circuit Test Procedure
Lite Diagnostic Procedures
Acronyms and Abbreviations



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