LS 400 V8-4.0L (1UZ-FE) (1990): Powertrain Management

Also for this vehicle: LS 430 V8-4.3L (3UZ-FE) (2002), LS 460 AWD V8-4.6L (1UR-FSE) (2009), LS 460 RWD V8-4.6L (1UR-FSE) (2010), LS 460 V8-4.6L (1UR-FSE) (2007), LS 600h V8-5.0L (2UR-FSE) Hybrid (2008).

Diagnostics Maintenance Engine Transmission Brakes Electrical Steering & suspension Heating & A/C Body & interior

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01Relays and Modules Relays and Modules: Sections
02Sensors and Switches Sensors and Switches: Sections
03Maintenance Maintenance: Sections
04Engine, Cooling and Exhaust Engine, Cooling and Exhaust: Sections
05Powertrain Management Powertrain Management: Sections
- Relays and Modules - Powertrain Management31 pages
  - Relays and Modules - Computers and Control Systems15 pages
    Engine Control Module › Component Information13 pages
    Technical Service Bulletins2 pages
    All Technical Service Bulletins for Engine Control Module: › ENG004 › Feb › 91 › Engine Control Computer - Modification
    Customer Interest for Engine Control Module: › ENG004 › Feb › 91 › Engine Control Computer - Modification
    Testing and Inspection › Component Tests and General Diagnostics2 3 4 5 6 7 8 9 10 11
    Main Relay (Computer/Fuel System) › Component Information › Locations2
  - Relays and Modules - Fuel Delivery and Air Induction8 pages
    Fuel Pump Relay › Component Information6 pages
    Locations
    Description and Operation › Fuel Pump Relay2
    Testing and Inspection › Circuit Opening Relay2 3
    Main Relay (Computer/Fuel System) › Component Information › Locations2
  - Relays and Modules - Ignition System8 pages
    Ignition Control Module › Component Information › Locations2 3 4
    Ignition Relay › Component Information › Locations2 3 4
- Sensors and Switches - Powertrain Management98 pages
  - Sensors and Switches - Computers and Control Systems57 pages
    Air Flow Meter/Sensor › Component Information › Specifications2 3 4
    Barometric Pressure Sensor › Component Information › Description and Operation
    Camshaft Position Sensor › Component Information12 pages
    Specifications
    Locations › Cam Position Sensor No. 1(+++)2
    Service and Repair › Left Side2 3 4 5 6 7 8 9
    Coolant Temperature Sensor/Switch (For Computer) › Component Information › Specifications2 3 4
    Crankshaft Position Sensor › Component Information › Specifications › Electrical Specifications2
    Intake Air Temperature Sensor › Component Information › Description and Operation
    Knock Sensor › Component Information › Specifications2 3
    Oxygen Sensor › Component Information11 pages
    Technical Service Bulletins › Engine Controls - A/F And O2 Sensor Identification2 3 4 5 6 7
    Specifications › Electrical Specifications2
    Locations › Main2
    Throttle Position Sensor › Component Information9 pages
    Specifications2
    Testing and Inspection › Sub Throttle Position Sensor Signal2 3 4 5 6 7
    Vehicle Speed Sensor › Component Information10 pages
    Locations › Vehicle Speed Sensor No.12
    Diagrams › Diagram Information and Instructions2 3 4 5 6
    Description and Operation › Vehicle Speed Sensor No.12
  - Sensors and Switches - Emission Control Systems › EGR Temperature Sensor › Component Information8 pages
    Specifications2
    Diagrams › Diagram Information and Instructions2 3 4 5 6
  - Sensors and Switches - Fuel Delivery and Air Induction15 pages
    Air Flow Meter/Sensor › Component Information › Specifications2 3 4
    Thermo Time Switch › Component Information › Specifications › Electrical Specifications2
    Throttle Position Sensor › Component Information9 pages
    Specifications2
    Testing and Inspection › Sub Throttle Position Sensor Signal2 3 4 5 6 7
  - Sensors and Switches - Ignition System18 pages
    Camshaft Position Sensor › Component Information12 pages
    Specifications
    Locations › Cam Position Sensor No. 1(+++)2
    Service and Repair › Left Side2 3 4 5 6 7 8 9
    Crankshaft Position Sensor › Component Information › Specifications › Electrical Specifications2
    Ignition Switch › Component Information › Service and Repair
    Knock Sensor › Component Information › Specifications2 3
- Tune-up and Engine Performance Checks39 pages
  - Fuel Pressure › System Information › Specifications2 3
  - Air/Fuel Mixture › System Information › Adjustments
  - Idle Speed › System Information › Adjustments
  - Fuel Filter › Fuel Pressure Release › System Information › Service and Repair
  - Firing Order › Component Information › Specifications
  - Ignition Timing2 pages
    Number One Cylinder › Component Information › Locations
    Timing Marks and Indicators › System Information › Locations
  - Ignition Cable › Component Information7 pages
    Specifications
    Diagrams › Diagram Information and Instructions2 3 4 5 6
  - Distributor, Ignition › Component Information13 pages
    Specifications2 3 4
    Service and Repair › Left Side2 3 4 5 6 7 8 9
  - Spark Plug › Component Information6 pages
    Specifications › Spark Plug Type, Gap and Torque2
    Service and Repair › Left Side2 3 4
  - Compression Check › System Information › System Diagnosis
  - Valve Clearance › System Information › Adjustments2 3
- Computers and Control Systems163 pages
  - Air Flow Meter/Sensor › Component Information › Specifications2 3 4
  - Intake Air Temperature Sensor › Component Information › Description and Operation
  - Barometric Pressure Sensor › Component Information › Description and Operation
  - Camshaft Position Sensor › Component Information12 pages
    Specifications
    Locations › Cam Position Sensor No. 1(+++)2
    Service and Repair › Left Side2 3 4 5 6 7 8 9
  - Coolant Temperature Sensor/Switch (For Computer) › Component Information › Specifications2 3 4
  - Cranking Signal › Component Information › Testing and Inspection2
  - Crankshaft Position Sensor › Component Information › Specifications › Electrical Specifications2
  - Data Link Connector › Component Information9 pages
    Locations › Component Locations2
    Testing and Inspection › TE1 Terminal Circuit2 3 4 5 6 7
  - EGR Backpressure Transducer › Component Information › Locations2
  - Engine Control Module › Component Information13 pages
    Technical Service Bulletins2 pages
    Customer Interest for Engine Control Module: › ENG004 › Feb › 91 › Engine Control Computer - Modification
    All Technical Service Bulletins for Engine Control Module: › ENG004 › Feb › 91 › Engine Control Computer - Modification
    Testing and Inspection › Component Tests and General Diagnostics2 3 4 5 6 7 8 9 10 11
  - Idle Speed/Throttle Actuator - Electronic › Component Information › Specifications › Electrical Specifications2
  - Knock Sensor › Component Information › Specifications2 3
  - Main Relay (Computer/Fuel System) › Component Information › Locations2
  - Malfunction Indicator Lamp › Component Information › Description and Operation
  - Oxygen Sensor › Component Information11 pages
    Technical Service Bulletins › Engine Controls - A/F And O2 Sensor Identification2 3 4 5 6 7
    Specifications › Electrical Specifications2
    Locations › Main2
  - Relays and Modules - Computers and Control Systems15 pages
    Engine Control Module › Component Information13 pages
    Technical Service Bulletins2 pages
    Customer Interest for Engine Control Module: › ENG004 › Feb › 91 › Engine Control Computer - Modification
    All Technical Service Bulletins for Engine Control Module: › ENG004 › Feb › 91 › Engine Control Computer - Modification
    Testing and Inspection › Component Tests and General Diagnostics2 3 4 5 6 7 8 9 10 11
    Main Relay (Computer/Fuel System) › Component Information › Locations2
  - Sensors and Switches - Computers and Control Systems57 pages
    Air Flow Meter/Sensor › Component Information › Specifications2 3 4
    Barometric Pressure Sensor › Component Information › Description and Operation
    Camshaft Position Sensor › Component Information12 pages
    Specifications
    Locations › Cam Position Sensor No. 1(+++)2
    Service and Repair › Left Side2 3 4 5 6 7 8 9
    Coolant Temperature Sensor/Switch (For Computer) › Component Information › Specifications2 3 4
    Crankshaft Position Sensor › Component Information › Specifications › Electrical Specifications2
    Intake Air Temperature Sensor › Component Information › Description and Operation
    Knock Sensor › Component Information › Specifications2 3
    Oxygen Sensor › Component Information11 pages
    Technical Service Bulletins › Engine Controls - A/F And O2 Sensor Identification2 3 4 5 6 7
    Specifications › Electrical Specifications2
    Locations › Main2
    Throttle Position Sensor › Component Information9 pages
    Specifications2
    Testing and Inspection › Sub Throttle Position Sensor Signal2 3 4 5 6 7
    Vehicle Speed Sensor › Component Information10 pages
    Locations › Vehicle Speed Sensor No.12
    Diagrams › Diagram Information and Instructions2 3 4 5 6
    Description and Operation › Vehicle Speed Sensor No.12
  - Throttle Position Sensor › Component Information9 pages
    Specifications2
    Testing and Inspection › Sub Throttle Position Sensor Signal2 3 4 5 6 7
  - Vehicle Speed Sensor › Component Information10 pages
    Locations › Vehicle Speed Sensor No.12
    Diagrams › Diagram Information and Instructions2 3 4 5 6
    Description and Operation › Vehicle Speed Sensor No.12
  - Voltage Signal › Component Information › Testing and Inspection2 3
- Emission Control Systems41 pages
  - Catalytic Converter › Component Information › Specifications2 3 4
  - Evaporative Emissions System7 pages
    Canister Purge Control Valve › Component Information › Locations2
    Evaporative Emission Control Canister › Component Information › Locations2
    Thermal Vacuum Valve - EVAP › Component Information › Specifications2 3
  - Exhaust Gas Recirculation20 pages
    EGR Backpressure Transducer › Component Information › Locations2
    EGR Control Solenoid › Component Information › Specifications › Electrical Specifications2 3
    EGR Temperature Sensor › Component Information8 pages
    Specifications2
    Diagrams › Diagram Information and Instructions2 3 4 5 6
    EGR Tube › Component Information › Service and Repair
    EGR Valve › Component Information › Specifications2 3 4
    Thermal Vacuum Valve, EGR › Component Information › Locations2
  - Positive Crankcase Ventilation › Positive Crankcase Ventilation Valve › Component Information › Locations2
  - Sensors and Switches - Emission Control Systems › EGR Temperature Sensor › Component Information8 pages
    Specifications2
    Diagrams › Diagram Information and Instructions2 3 4 5 6
- Fuel Delivery and Air Induction120 pages
  - Fuel Pressure › System Information › Specifications2 3
  - Fuel Pressure Release › System Information › Service and Repair
  - Idle Speed › System Information › Adjustments
  - Air/Fuel Mixture › System Information › Adjustments
  - Air Flow Meter/Sensor › Component Information › Specifications2 3 4
  - Cold Start Injector › Component Information10 pages
    Technical Service Bulletins › Type EE1 and ED2 Connectors - New Design2
    Specifications › Electrical Specifications2
    Service and Repair › Removal2 3 4 5 6
  - Fuel › Component Information › Specifications
  - Fuel Filter › Fuel Pressure Release › System Information › Service and Repair
  - Fuel Injector › Component Information14 pages
    Specifications2
    Testing and Inspection › Circuit Test2 3 4 5
    Service and Repair › Removal2 3 4 5 6 7
  - Fuel Pressure Control Solenoid › Component Information8 pages
    Specifications2 3 4
    Testing and Inspection › Component Test2 3 4
  - Fuel Pressure Regulator › Component Information › Specifications2 3 4 5 6
  - Fuel Pressure Pulsation Damper › Component Information › Specifications2 3 4 5
  - Fuel Pump14 pages
    Fuel Pressure › System Information › Specifications2 3
    Fuel Pump Ballast Resistor › Component Information › Specifications2 3 4 5
    Fuel Pump Relay › Component Information6 pages
    Locations
    Description and Operation › Fuel Pump Relay2
    Testing and Inspection › Circuit Opening Relay2 3
  - Fuel Rail › Component Information › Specifications
  - Fuel Tank › Component Information › Specifications2 3
  - Idle Speed/Throttle Actuator - Electronic › Component Information › Specifications › Electrical Specifications2
  - Intake Air Plenum › Component Information › Specifications2
  - Main Relay (Computer/Fuel System) › Component Information › Locations2
  - Relays and Modules - Fuel Delivery and Air Induction8 pages
    Fuel Pump Relay › Component Information6 pages
    Locations
    Description and Operation › Fuel Pump Relay2
    Testing and Inspection › Circuit Opening Relay2 3
    Main Relay (Computer/Fuel System) › Component Information › Locations2
  - Sensors and Switches - Fuel Delivery and Air Induction15 pages
    Air Flow Meter/Sensor › Component Information › Specifications2 3 4
    Thermo Time Switch › Component Information › Specifications › Electrical Specifications2
    Throttle Position Sensor › Component Information9 pages
    Specifications2
    Testing and Inspection › Sub Throttle Position Sensor Signal2 3 4 5 6 7
  - Thermo Time Switch › Component Information › Specifications › Electrical Specifications2
  - Throttle Body › Component Information6 pages
    Specifications
    Service and Repair › Removal2 3 4 5
  - Throttle Cable/Linkage › Component Information › Technical Service Bulletins › A/T - Removal Precautions
  - Throttle Position Sensor › Component Information9 pages
    Specifications2
    Testing and Inspection › Sub Throttle Position Sensor Signal2 3 4 5 6 7
- Ignition System84 pages
  - Firing Order › Component Information › Specifications
  - Ignition Timing2 pages
    Number One Cylinder › Component Information › Locations
    Timing Marks and Indicators › System Information › Locations
  - Camshaft Position Sensor › Component Information12 pages
    Specifications
    Locations › Cam Position Sensor No. 1(+++)2
    Service and Repair › Left Side2 3 4 5 6 7 8 9
  - Crankshaft Position Sensor › Component Information › Specifications › Electrical Specifications2
  - Distributor, Ignition › Component Information13 pages
    Specifications2 3 4
    Service and Repair › Left Side2 3 4 5 6 7 8 9
  - Ignition Cable › Component Information7 pages
    Specifications
    Diagrams › Diagram Information and Instructions2 3 4 5 6
  - Ignition Coil › Component Information4 pages
    Technical Service Bulletins › Type EE1 and ED2 Connectors - New Design2
    Locations › Ignition Coil No. 1(+++)2
  - Ignition Control Module › Component Information › Locations2 3 4
  - Ignition Relay › Component Information › Locations2 3 4
  - Knock Sensor › Component Information › Specifications2 3
  - Relays and Modules - Ignition System8 pages
    Ignition Control Module › Component Information › Locations2 3 4
    Ignition Relay › Component Information › Locations2 3 4
  - Sensors and Switches - Ignition System18 pages
    Camshaft Position Sensor › Component Information12 pages
    Specifications
    Locations › Cam Position Sensor No. 1(+++)2
    Service and Repair › Left Side2 3 4 5 6 7 8 9
    Crankshaft Position Sensor › Component Information › Specifications › Electrical Specifications2
    Ignition Switch › Component Information › Service and Repair
    Knock Sensor › Component Information › Specifications2 3
  - Spark Plug › Component Information6 pages
    Specifications › Spark Plug Type, Gap and Torque2
    Service and Repair › Left Side2 3 4
- Transmission Control Systems14 pages
  - Actuators and Solenoids - Transmission and Drivetrain › Actuators and Solenoids - A/T2 pages
    Shift Solenoid, A/T › Component Information › Technical Service Bulletins › A341E A/T - Valve Body Solenoid, Manual Correction
    Torque Converter Clutch Solenoid, A/T › Component Information › Technical Service Bulletins › A341E A/T - Valve Body Solenoid, Manual Correction
  - Lamps and Indicators - Transmission and Drivetrain › Lamps and Indicators - A/T › Transmission Mode Indicator - A/T › Component Information › Diagrams › Diagram Information and Instructions2 3 4 5 6 7 8 9
  - Relays and Modules - Transmission and Drivetrain › Relays and Modules - A/T › Shift Interlock Control Module › Component Information › Locations
  - Sensors and Switches - Transmission and Drivetrain › Sensors and Switches - A/T2 pages
    Downshift Switch, A/T › Component Information › Service and Repair
    Overdrive Switch, A/T › Component Information › Locations
06Transmission and Drivetrain Transmission and Drivetrain: Sections
07Brakes and Traction Control Brakes and Traction Control: Sections
08Starting and Charging Starting and Charging: Sections
09Power and Ground Distribution Power and Ground Distribution: Sections
10Steering and Suspension Steering and Suspension: Sections
11Heating and Air Conditioning Heating and Air Conditioning: Sections
12Restraint Systems Restraint Systems: Sections
13Accessories and Optional Equipment Accessories and Optional Equipment: Sections
14Body and Frame Body and Frame: Sections
15Cruise Control Cruise Control: Sections
16Instrument Panel, Gauges and Warning Indicators Instrument Panel, Gauges and Warning Indicators: Sections
17Lighting and Horns Lighting and Horns: Sections
18Windows and Glass Windows and Glass: Sections
19Wiper and Washer Systems Wiper and Washer Systems: Sections