Computers and Control Systems: Technical Service Bulletins

• Customer Interest
  • Engine - Poor Running in Wet or Hot Weather Conditions
  • ECU - Unnecessary Replacement
  • MIL ON - DTCs 29 or 69 With No System Fault
  • Trip Computer - Innacurate Fuel Consumption Readings
• By Symptom
  • Customer Interest
    • Engine - Poor Running in Wet or Hot Weather Conditions
    • ECU - Unnecessary Replacement
    • MIL ON - DTCs 29 or 69 With No System Fault
    • Trip Computer - Innacurate Fuel Consumption Readings
  • False instrument warning light/gauges
    • ECU - Unnecessary Replacement
    • MIL ON - DTCs 29 or 69 With No System Fault
    • Trip Computer - Innacurate Fuel Consumption Readings
  • Leaks
    • EGR Pipe Seal - Hard Starting/Hesitation DTCs 26, 44
      • Overview
      • Action:
      • Torque Specifications:
      • Parts Information:
      • Warranty Information:
  • Out of specification
    • Trip Computer - Innacurate Fuel Consumption Readings
  • Poor performance
    • Engine - Poor Running in Wet or Hot Weather Conditions
• All Technical Service Bulletins
  • PDU Software - Now Compatible With JTP 627/3
  • JDS - Software Issue 4040 General Usage Rules
    • Overview
    • General Rules For Use of All Jds Software
    • 4040 Software Changes
    • Instrument Pack Testing
    • Engine Management System Testing
    • Electronic Transmission Testing
    • Testing Exceptions
  • PDU - Software 1000 Error Requesting Start Engine
  • PDU - Software Updates
  • PDU - Software Update
  • PDU - New Software Update
    • Overview
    • Vehicle Data Viewer (JT626/2 & JTP627/1)
    • JVA Enhancements (JTP626/2 & JTP627/1)
    • Power Train Toolbox Functions (JTP626/2 & JTP627/1)
    • PDU-PC Version 3 (JTP628/1)
    • OBDII Report (JTP627/1)
    • System Setup (JTP627/1)
  • Engine - Poor Running in Wet or Hot Weather Conditions
  • ECU - Unnecessary Replacement
  • JDS - Software Issue 4040 System Communications
    • Overview
    • Software Information:
    • Serial Communication System
      • Instrument Pack:
      • Serial Communications
      • Engine Management Test:
      • Electronic Transmission Test:
      • Transmission Fault Table Reading:
      • Field One Data Table
      • Second Field Codes Table
    • Circuit Board Connector Locations
  • JDS - Software Reference Guide
  • Tool - Fuel Injection Tester
  • ECU - Unnecessary Replacement Due to DTC 29
  • DTC 44 - Diagnosing Oxygen Sensor
  • EMS - Code 89 Purge Valve Circuit Diagram Correction
  • Check Engine Light - Reporting and Erasing DTCs
  • MIL ON - DTCs 29 or 69 With No System Fault
  • Check Engine Light Activates, Fuel Fail Code Set
  • Trip Computer - Innacurate Fuel Consumption Readings
  • EGR Pipe Seal - Hard Starting/Hesitation DTCs 26, 44
    • Overview
    • Action:
    • Torque Specifications:
    • Parts Information:
    • Warranty Information:
  • Engine Controls - Removal of Seized Oxygen (O2) Sensors