Computers and Control Systems: Technical Service Bulletins

• Recalls
  • Emissions
    • Recall - Catalytic Converter Replacement
  • Generals
    • Campaign - Oil Pressure Switch Replacement
• Customer Interest
  • Engine Controls - MIL ON/DTC 23 (Gearbox Fault)
  • ECM - Intermittent Vehicle No Start
  • Damaged Heated Oxygen Sensor (HO2S) Replacement
    • Overview
    • Repair Procedure
  • ECM/ABS ECU - DTC's P1317/P1703 Set
  • MIL ON at Low Temperature/Hard Acceleration
  • ECM - Engine Stalls When Cold, MIL ON
  • Sunvisor Vanity Mirror - Short Circuit/Fuse Blown
  • MIL ON DTC's P0130 & P0150 Set
  • ECM - DTC's P0443 & P0441 Sert
  • False MIL ON DTC's P1775 & 23 Set
  • Idle Air Control Valve - Stalling/Poor Idle/Surging
  • BeCM - Reverse Mirror Dip Condition
  • Engine - Misfire/Stumble Under Load
• By Symptom
  • Customer Interest
    • Engine Controls - MIL ON/DTC 23 (Gearbox Fault)
    • ECM - Intermittent Vehicle No Start
    • Damaged Heated Oxygen Sensor (HO2S) Replacement
      • Overview
      • Repair Procedure
    • ECM/ABS ECU - DTC's P1317/P1703 Set
    • MIL ON at Low Temperature/Hard Acceleration
    • ECM - Engine Stalls When Cold, MIL ON
    • Sunvisor Vanity Mirror - Short Circuit/Fuse Blown
    • MIL ON DTC's P0130 & P0150 Set
    • ECM - DTC's P0443 & P0441 Sert
    • False MIL ON DTC's P1775 & 23 Set
    • Idle Air Control Valve - Stalling/Poor Idle/Surging
    • BeCM - Reverse Mirror Dip Condition
    • Engine - Misfire/Stumble Under Load
  • Driveability
    • MIL ON at Low Temperature/Hard Acceleration
  • Erratic Operation
    • Idle Air Control Valve - Stalling/Poor Idle/Surging
    • Engine - Misfire/Stumble Under Load
  • False instrument warning light/gauges
    • Engine Controls - MIL ON/DTC 23 (Gearbox Fault)
    • False MIL ON DTC's P1775 & 23 Set
  • Recalls
    • Recall - Catalytic Converter Replacement
    • Campaign - Oil Pressure Switch Replacement
• All Technical Service Bulletins
  • Recall - Catalytic Converter Replacement
  • Suspension - Air Suspension Lamp ON/Inoperative
  • Engine Controls - MIL ON/DTC 23 (Gearbox Fault)
  • Engine - Misfire Diagnosis
    • Overview
    • Misfire General Checks
      • Overview
      • Check Fuel Pressure and Volume
    • Reluctor/Crankshaft Sensor Checks
      • Overview
      • Reluctor Test Automatic Transmission
      • Reluctor Test - Discovery Manual Transmission
    • Exhaust Valve Stick Tests
  • ECM - Intermittent Vehicle No Start
  • Warranty Claims - MIL Event Requirements
  • Damaged Heated Oxygen Sensor (HO2S) Replacement
    • Overview
    • Repair Procedure
  • GEMS System - OBD ll Diagnostic Information Document
    • Overview
    • About This Document
    • Starting
    • Driveability and Running Conditions
    • MIL Illumination
      • Overview
      • Misfires
      • Oxygen Sensors
      • Cam & Crank Sensors
      • Gearbox Interface (New Range Rover Only)
      • Security Link
      • Coolant Sensor
      • ABS & Transfer Box
      • Miscellaneous
    • Diagnostic Trouble Code Report (DTCR) Form
  • Oxygen Sensor - Handling and Diagnosis
    • Overview
    • Connector Inspection
      • Overview
      • Removal and Installation
      • Snap Throttle Test of Upstream Sensors Using Bear Analyzer
  • Warranty - Diagnostic Trouble Code Report
  • Idle Air Control Valve - Unnecessary Replacement
  • BeCM - Revised Message Center Display Operation
  • Fuel Injection - Misfire Diagnostics
    • Overview
    • Mechanical Tests
    • Fuel Injector Balance Check
    • Fuel Injector Electrical Checks Using P.A.C.
  • ECM/ABS ECU - DTC's P1317/P1703 Set
  • Temperature Gauge - Inaccurate/False DTC's Stored
    • Overview
    • Snap-on PAC Ground Check Instructions
  • MIL ON at Low Temperature/Hard Acceleration
  • ECM - Engine Stalls When Cold, MIL ON
  • Sunvisor Vanity Mirror - Short Circuit/Fuse Blown
  • Oxygen Sensor - Codes 44 & 45 Diagnosis
  • MIL ON DTC's P0130 & P0150 Set
  • ECM - DTC's P0443 & P0441 Sert
  • False MIL ON DTC's P1775 & 23 Set
  • Heated Oxygen Sensor - Unnecessary Replacement
  • HO2S - Handling and Diagnostic Procedures
    • Overview
    • Oxygen Sensor Response Chart
    • Snap Throttle Test
  • Wiring/Connectors - Troubleshooting & Repair
    • Overview
    • Connector Troubleshooting
    • Circuit Troubleshooting
    • Heated Oxygen Sensor (HO2S) Repair
    • Econoseal Anti-Backouts
  • Idle Air Control Valve - Stalling/Poor Idle/Surging
  • Mass Air Flow Sensor - Gold Plated Connectors
  • BeCM - Fault Questionnaire
  • BeCM - Reverse Mirror Dip Condition
  • Engine - Misfire/Stumble Under Load
  • Data Link Connector - Replacement
  • Campaign - Oil Pressure Switch Replacement