Computers and Control Systems: Technical Service Bulletins

• Customer Interest
  • Electrical - MIL ON/DTC's Set By Various Control Modules
  • Electrical - Intermittent MIL/DTC P2138/Reduced Power
  • Engine, A/T - Shift/Driveability Concerns/MIL ON
  • Ignition - Miss, Stumble, Hesitation, Code 53, E53, E053
  • Engine - Intermittent Cooling System Codes
  • Engine Control - Intermittent or Hard Code E59/E059
  • A/C - Intermittent Hot Air or Heat From ECC System
  • Starting - Dead Battery/No Crank After Overnight Set
  • Cruise Control - Slight Surge Above 50 MPH
  • Fuel - Incomplete Fuel Fill
• By Symptom
  • Abnormal wear/deterioration
    • Electrical - MIL ON/DTC's Set By Various Control Modules
    • Electrical - Intermittent MIL/DTC P2138/Reduced Power
  • Customer Interest
    • Electrical - MIL ON/DTC's Set By Various Control Modules
    • Electrical - Intermittent MIL/DTC P2138/Reduced Power
    • Engine, A/T - Shift/Driveability Concerns/MIL ON
    • Ignition - Miss, Stumble, Hesitation, Code 53, E53, E053
    • Engine - Intermittent Cooling System Codes
    • Engine Control - Intermittent or Hard Code E59/E059
    • A/C - Intermittent Hot Air or Heat From ECC System
    • Starting - Dead Battery/No Crank After Overnight Set
    • Cruise Control - Slight Surge Above 50 MPH
    • Fuel - Incomplete Fuel Fill
  • Driveability
    • Engine, A/T - Shift/Driveability Concerns/MIL ON
    • Warranty - Driveability Problems From Add On Equipment
    • Ignition - Miss, Stumble, Hesitation, Code 53, E53, E053
    • Engine Control - Intermittent or Hard Code E59/E059
  • Erratic Operation
    • A/C - Intermittent Hot Air or Heat From ECC System
    • Cruise Control - Slight Surge Above 50 MPH
  • Erratic Shifting
    • Engine, A/T - Shift/Driveability Concerns/MIL ON
  • False instrument warning light/gauges
    • Engine Conrtols - Code E39 Viscous Converter Clutch
      • Overview
      • I. Code E39
      • II. Diagnosis
      • III. Cooler Line Pressure Check
      • IV. Converter Clutch Apply Valve Does Not Move
      • V.Viscous Converter Clutch Slippage
  • Low, Dead battery
    • Starting - Dead Battery/No Crank After Overnight Set
  • Out of specification
    • Fuel - Incomplete Fuel Fill
  • Poor performance
    • A/C - Insufficient Cooling, BCM PROM Update
  • Slipping
    • Engine Conrtols - Code E39 Viscous Converter Clutch
      • Overview
      • I. Code E39
      • II. Diagnosis
      • III. Cooler Line Pressure Check
      • IV. Converter Clutch Apply Valve Does Not Move
      • V.Viscous Converter Clutch Slippage
  • Starting problems
    • Engine Control - Intermittent or Hard Code E59/E059
    • Starting - Dead Battery/No Crank After Overnight Set
• All Technical Service Bulletins
  • Engine - THIS BULLETIN HAS BEEN CANCELED
  • Electrical - MIL ON/DTC's Set By Various Control Modules
  • Electrical - Intermittent MIL/DTC P2138/Reduced Power
  • Engine, A/T - Shift/Driveability Concerns/MIL ON
  • Warranty - Driveability Problems From Add On Equipment
  • Oxygen Sensor Test - Revised Tech 1 Mass Storage CD
  • Engine Conrtols - Code E39 Viscous Converter Clutch
    • Overview
    • I. Code E39
    • II. Diagnosis
    • III. Cooler Line Pressure Check
    • IV. Converter Clutch Apply Valve Does Not Move
    • V.Viscous Converter Clutch Slippage
  • Ignition - Miss, Stumble, Hesitation, Code 53, E53, E053
  • Engine - Intermittent Cooling System Codes
  • Engine Control - Intermittent or Hard Code E59/E059
  • ECM/PCM - Driveability Symptom/Data Worksheet
  • A/C - Insufficient Cooling, BCM PROM Update
  • A/C - Intermittent Hot Air or Heat From ECC System
  • ISC - Adjustment Procedure Revision
  • Starting - Dead Battery/No Crank After Overnight Set
  • Cruise Control - Slight Surge Above 50 MPH
  • Fuel - Incomplete Fuel Fill
  • BCM EPROM - Calibration Summary
  • PROM/MEMCAL - Identification Marks