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
  • Fuel - Intermittent Reduction of Power/Stall
  • Ignition - Poor Driveability, Carbon Tracked Spark Plugs
  • O2 Sensor - DFI Codes 13 and 45
  • Ignition - Miss, Stumble, Hesitation, Code 53, E53, E053
  • Engine - Intermittent Cooling System Codes
  • Engine Control - Intermittent or Hard Code E59/E059
  • ECM - Driveability Concerns/Erratic Warning Lamps
    • Overview
    • Conditon and Cause
    • Correction:
      • A.Loss of Power or Ground to the ECM
      • B.Large Voltage Variations On Vehicle Power and Ground Wires
      • C.Large Voltage Variations On ECM Connected Signal Wires
  • A/C - Intermittent Hot Air or Heat From ECC System
  • A/T - High Idle/Intermittent Code 26, Improper TPS
  • A/C - Compressor Growl Diagnosis & Correction
  • Starting - Dead Battery/No Crank After Overnight Set
  • Engine Controls - Lean Driveability, Code(s) 13/45
  • Engine Controls - Improved Driveability, False Code E13
  • 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
    • ECM - Tap Test Precautions
  • 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
    • Fuel - Intermittent Reduction of Power/Stall
    • Ignition - Poor Driveability, Carbon Tracked Spark Plugs
    • O2 Sensor - DFI Codes 13 and 45
    • Ignition - Miss, Stumble, Hesitation, Code 53, E53, E053
    • Engine - Intermittent Cooling System Codes
    • Engine Control - Intermittent or Hard Code E59/E059
    • ECM - Driveability Concerns/Erratic Warning Lamps
      • Overview
      • Conditon and Cause
      • Correction:
        • A.Loss of Power or Ground to the ECM
        • B.Large Voltage Variations On Vehicle Power and Ground Wires
        • C.Large Voltage Variations On ECM Connected Signal Wires
    • A/C - Intermittent Hot Air or Heat From ECC System
    • A/T - High Idle/Intermittent Code 26, Improper TPS
    • A/C - Compressor Growl Diagnosis & Correction
    • Starting - Dead Battery/No Crank After Overnight Set
    • Engine Controls - Lean Driveability, Code(s) 13/45
    • Engine Controls - Improved Driveability, False Code E13
    • Cruise Control - Slight Surge Above 50 MPH
    • Fuel - Incomplete Fuel Fill
  • Driveability
    • Engine, A/T - Shift/Driveability Concerns/MIL ON
    • Engine - Detonation (Pinging), Slight Tip-in Hesitation
    • Warranty - Driveability Problems From Add On Equipment
    • Fuel - Intermittent Reduction of Power/Stall
    • Ignition - Poor Driveability, Carbon Tracked Spark Plugs
    • Ignition - Miss, Stumble, Hesitation, Code 53, E53, E053
    • Engine Control - Intermittent or Hard Code E59/E059
    • A/T - High Idle/Intermittent Code 26, Improper TPS
    • Engine Controls - Lean Driveability, Code(s) 13/45
    • Engine Controls - Improved Driveability, False Code E13
  • Erratic Operation
    • Fuel - Intermittent Reduction of Power/Stall
    • Open Circuit - Intermittent Rich Operation, DTC 15 Or 38
    • 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
    • Ignition - Poor Driveability, Carbon Tracked Spark Plugs
    • 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
    • A/T - High Idle/Intermittent Code 26, Improper TPS
    • Engine Controls - Lean Driveability, Code(s) 13/45
    • Engine Controls - Improved Driveability, False Code E13
  • Low, Dead battery
    • Starting - Dead Battery/No Crank After Overnight Set
  • Noise
    • Engine - Detonation (Pinging), Slight Tip-in Hesitation
    • A/C - Compressor Growl Diagnosis & Correction
  • Out of specification
    • A/T - High Idle/Intermittent Code 26, Improper TPS
    • 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
  • Vibration
    • A/C - Compressor Growl Diagnosis & Correction
• 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
  • Engine - Detonation (Pinging), Slight Tip-in Hesitation
  • Warranty - Driveability Problems From Add On Equipment
  • Fuel - Intermittent Reduction of Power/Stall
  • Ignition - Poor Driveability, Carbon Tracked Spark Plugs
  • Oxygen Sensor Test - Revised Tech 1 Mass Storage CD
  • O2 Sensor - DFI Codes 13 and 45
  • 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
  • Open Circuit - Intermittent Rich Operation, DTC 15 Or 38
  • Engine Control - Intermittent or Hard Code E59/E059
  • ECM - Driveability Concerns/Erratic Warning Lamps
    • Overview
    • Conditon and Cause
    • Correction:
      • A.Loss of Power or Ground to the ECM
      • B.Large Voltage Variations On Vehicle Power and Ground Wires
      • C.Large Voltage Variations On ECM Connected Signal Wires
  • ECM/PCM - Driveability Symptom/Data Worksheet
  • A/C - Insufficient Cooling, BCM PROM Update
  • A/C - Intermittent Hot Air or Heat From ECC System
  • A/T - High Idle/Intermittent Code 26, Improper TPS
  • ISC - Adjustment Procedure Revision
  • A/C - Compressor Growl Diagnosis & Correction
  • ECM - Tap Test Precautions
  • Starting - Dead Battery/No Crank After Overnight Set
  • Engine Controls - Lean Driveability, Code(s) 13/45
  • Oxygen Sensors - Silica Contamination
  • Engine Controls - Improved Driveability, False Code E13
  • Cruise Control - Slight Surge Above 50 MPH
  • Fuel - Incomplete Fuel Fill
  • BCM EPROM - Calibration Summary
  • PROM/MEMCAL - Identification Marks