GS 400 V8-4.0L (1UZ-FE) (1999): Powertrain Management

Also for this vehicle: GS 300 L6-3.0L (2JZ-GE) (1993), GS 300 RWD V6-3.0L (3GR-FSE) (2006), GS 350 AWD V6-3.5L (2GR-FSE) (2009), GS 350 RWD V6-3.5L (2GR-FSE) (2007), GS 430 V8-4.3L (3UZ-FE) (2004), GS 450h V6-3.5L (2GR-FSE) Hybrid (2007), GS 460 V8-4.6L (1UR-FSE) (2008).

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

Choose Sections to see everything in a chapter, or a chapter title to start at its first page.

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 Management68 pages
  - Relays and Modules - Computers and Control Systems50 pages
    Body Control System <--> [Body Control Module] › Component Information › Locations › Body No. 1 Control System2 3 4
    Electric Throttle Control System <--> [Electronic Throttle Control Module] › Component Information › Description and Operation
    Engine Control Module › Component Information43 pages
    Technical Service Bulletins › Engine Controls - ECM Memory Reset After A/T Service2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18
    Diagrams › Diagram Information and Instructions2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17
    Testing and Inspection › Component Tests and General Diagnostics2 3 4 5 6 7 8
    EFI Main Relay <--> [Main Relay (Computer/Fuel System)] › Component Information › Locations2
  - Relays and Modules - Fuel Delivery and Air Induction18 pages
    Fuel Pump Control Unit › Component Information16 pages
    Locations
    Diagrams › Diagram Information and Instructions2 3 4 5 6 7 8 9 10 11 12 13 14 15
    EFI Main Relay <--> [Main Relay (Computer/Fuel System)] › Component Information › Locations2
- Sensors and Switches - Powertrain Management278 pages
  - Sensors and Switches - Computers and Control Systems190 pages
    Accelerator Pedal Position Sensor › Component Information › Diagrams › Diagram Information and Instructions2 3 4 5 6 7 8 9 10 11 12 13 14 15
    Mass Air Flow Meter <--> [Air Flow Meter/Sensor] › Fuel Cut-Out Switch › Component Information › Testing and Inspection
    Camshaft Position Sensor › Component Information16 pages
    Locations
    Diagrams › Diagram Information and Instructions2 3 4 5 6 7 8 9 10 11 12 13 14 15
    Coolant Temperature Sensor/Switch (For Computer) › Component Information16 pages
    Locations
    Diagrams › Diagram Information and Instructions2 3 4 5 6 7 8 9 10 11 12 13 14 15
    Crankshaft Position Sensor › Component Information16 pages
    Locations
    Diagrams › Diagram Information and Instructions2 3 4 5 6 7 8 9 10 11 12 13 14 15
    Intake Air Temperature Sensor <--> [Intake Air Temperature Sensor] › Component Information › Diagrams › Diagram Information and Instructions2 3 4 5 6 7 8 9 10 11 12 13 14 15
    Knock Sensor › Component Information16 pages
    Locations
    Diagrams › Diagram Information and Instructions2 3 4 5 6 7 8 9 10 11 12 13 14 15
    Oxygen Sensor › Component Information42 pages
    Technical Service Bulletins › Engine Controls - A/F And O2 Sensor Identification2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20…27
    Diagrams › Diagram Information and Instructions2 3 4 5 6 7 8 9 10 11 12 13 14 15
    Throttle Position Sensor › Component Information › Diagrams › Diagram Information and Instructions2 3 4 5 6 7 8 9 10 11 12 13 14 15
    Transmission Position Switch/Sensor, A/T › Component Information › Diagrams › Diagram Information and Instructions2 3 4 5 6 7 8 9 10 11 12 13 14 15
    Variable Valve Timing Sensor <--> [Variable Valve Timing Actuator Position Sensor] › Component Information › Locations2 3 4 5 6 7 8 9
    Vehicle Speed Sensor › Component Information › Diagrams › Diagram Information and Instructions2 3 4 5 6 7 8 9 10 11 12 13 14
  - Sensors and Switches - Emission Control Systems › Vapor Pressure Sensor <--> [Evaporative Vapor Pressure Sensor] › Component Information › Locations2 3 4
  - Sensors and Switches - Fuel Delivery and Air Induction32 pages
    Accelerator Pedal Position Sensor › Component Information › Diagrams › Diagram Information and Instructions2 3 4 5 6 7 8 9 10 11 12 13 14 15
    Mass Air Flow Meter <--> [Air Flow Meter/Sensor] › Fuel Cut-Out Switch › Component Information › Testing and Inspection
    Fuel Cut-Out Switch › Component Information › Testing and Inspection
    Throttle Position Sensor › Component Information › Diagrams › Diagram Information and Instructions2 3 4 5 6 7 8 9 10 11 12 13 14 15
  - Sensors and Switches - Ignition System52 pages
    Camshaft Position Sensor › Component Information16 pages
    Locations
    Diagrams › Diagram Information and Instructions2 3 4 5 6 7 8 9 10 11 12 13 14 15
    Crankshaft Position Sensor › Component Information16 pages
    Locations
    Diagrams › Diagram Information and Instructions2 3 4 5 6 7 8 9 10 11 12 13 14 15
    Ignition Switch › Component Information4 pages
    Locations
    Testing and Inspection › Symptom Related Diagnostic Procedures2 3
    Knock Sensor › Component Information16 pages
    Locations
    Diagrams › Diagram Information and Instructions2 3 4 5 6 7 8 9 10 11 12 13 14 15
- Tune-up and Engine Performance Checks23 pages
- Computers and Control Systems645 pages
  - Accelerator Pedal Position Sensor › Component Information › Diagrams › Diagram Information and Instructions2 3 4 5 6 7 8 9 10 11 12 13 14 15
  - Mass Air Flow Meter <--> [Air Flow Meter/Sensor] › Fuel Cut-Out Switch › Component Information › Testing and Inspection
  - Intake Air Temperature Sensor <--> [Intake Air Temperature Sensor] › Component Information › Diagrams › Diagram Information and Instructions2 3 4 5 6 7 8 9 10 11 12 13 14 15
  - Body Control System <--> [Body Control Module] › Component Information › Locations › Body No. 1 Control System2 3 4
  - Stop Signal <--> [Brake Signal] › Component Information › Diagrams › Diagram Information and Instructions2 3 4 5 6 7 8 9 10 11 12 13 14 15 16
  - Camshaft Position Sensor › Component Information16 pages
    Locations
    Diagrams › Diagram Information and Instructions2 3 4 5 6 7 8 9 10 11 12 13 14 15
  - Coolant Temperature Sensor/Switch (For Computer) › Component Information16 pages
    Locations
    Diagrams › Diagram Information and Instructions2 3 4 5 6 7 8 9 10 11 12 13 14 15
  - Starter Signal <--> [Cranking Signal] › Component Information › Diagrams › Diagram Information and Instructions2 3 4 5 6 7 8 9 10 11 12 13 14 15
  - Crankshaft Position Sensor › Component Information16 pages
    Locations
    Diagrams › Diagram Information and Instructions2 3 4 5 6 7 8 9 10 11 12 13 14 15
  - Data Link Connector › Component Information › Diagrams › Diagram Information and Instructions2 3 4 5 6 7 8 9 10 11 12 13 14
  - Throttle Control Motor <--> [Electronic Throttle Actuator] › Component Information › Diagrams › Diagram Information and Instructions2 3 4 5 6 7 8 9 10 11 12 13 14 15
  - Electric Throttle Control System <--> [Electronic Throttle Control Module] › Component Information › Description and Operation
  - Engine Control Module › Component Information43 pages
    Technical Service Bulletins › Engine Controls - ECM Memory Reset After A/T Service2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18
    Diagrams › Diagram Information and Instructions2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17
    Testing and Inspection › Component Tests and General Diagnostics2 3 4 5 6 7 8
  - Idle Air Control Valve <--> [Idle Speed/Throttle Actuator - Electronic] › Component Information › Description and Operation2 3 4
  - Air Control Valve <--> [Idle Up Control Valve] › Component Information › Testing and Inspection
  - Multiplex Communication System <--> [Information Bus] › Component Information82 pages
    Locations › Component Locations2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20…26
    Diagrams › Diagram Information and Instructions2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20…34
    Description and Operation › Diagnosis System2 3
    Testing and Inspection › Initial Inspection and Diagnostic Overview2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19
  - Knock Sensor › Component Information16 pages
    Locations
    Diagrams › Diagram Information and Instructions2 3 4 5 6 7 8 9 10 11 12 13 14 15
  - EFI Main Relay <--> [Main Relay (Computer/Fuel System)] › Component Information › Locations2
  - Oxygen Sensor › Component Information42 pages
    Technical Service Bulletins › Engine Controls - A/F And O2 Sensor Identification2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20…27
    Diagrams › Diagram Information and Instructions2 3 4 5 6 7 8 9 10 11 12 13 14 15
  - Relays and Modules - Computers and Control Systems50 pages
    Body Control System <--> [Body Control Module] › Component Information › Locations › Body No. 1 Control System2 3 4
    Electric Throttle Control System <--> [Electronic Throttle Control Module] › Component Information › Description and Operation
    Engine Control Module › Component Information43 pages
    Technical Service Bulletins › Engine Controls - ECM Memory Reset After A/T Service2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18
    Diagrams › Diagram Information and Instructions2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17
    Testing and Inspection › Component Tests and General Diagnostics2 3 4 5 6 7 8
    EFI Main Relay <--> [Main Relay (Computer/Fuel System)] › Component Information › Locations2
  - Sensors and Switches - Computers and Control Systems190 pages
    Accelerator Pedal Position Sensor › Component Information › Diagrams › Diagram Information and Instructions2 3 4 5 6 7 8 9 10 11 12 13 14 15
    Mass Air Flow Meter <--> [Air Flow Meter/Sensor] › Fuel Cut-Out Switch › Component Information › Testing and Inspection
    Camshaft Position Sensor › Component Information16 pages
    Locations
    Diagrams › Diagram Information and Instructions2 3 4 5 6 7 8 9 10 11 12 13 14 15
    Coolant Temperature Sensor/Switch (For Computer) › Component Information16 pages
    Locations
    Diagrams › Diagram Information and Instructions2 3 4 5 6 7 8 9 10 11 12 13 14 15
    Crankshaft Position Sensor › Component Information16 pages
    Locations
    Diagrams › Diagram Information and Instructions2 3 4 5 6 7 8 9 10 11 12 13 14 15
    Intake Air Temperature Sensor <--> [Intake Air Temperature Sensor] › Component Information › Diagrams › Diagram Information and Instructions2 3 4 5 6 7 8 9 10 11 12 13 14 15
    Knock Sensor › Component Information16 pages
    Locations
    Diagrams › Diagram Information and Instructions2 3 4 5 6 7 8 9 10 11 12 13 14 15
    Oxygen Sensor › Component Information42 pages
    Technical Service Bulletins › Engine Controls - A/F And O2 Sensor Identification2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20…27
    Diagrams › Diagram Information and Instructions2 3 4 5 6 7 8 9 10 11 12 13 14 15
    Throttle Position Sensor › Component Information › Diagrams › Diagram Information and Instructions2 3 4 5 6 7 8 9 10 11 12 13 14 15
    Transmission Position Switch/Sensor, A/T › Component Information › Diagrams › Diagram Information and Instructions2 3 4 5 6 7 8 9 10 11 12 13 14 15
    Variable Valve Timing Sensor <--> [Variable Valve Timing Actuator Position Sensor] › Component Information › Locations2 3 4 5 6 7 8 9
    Vehicle Speed Sensor › Component Information › Diagrams › Diagram Information and Instructions2 3 4 5 6 7 8 9 10 11 12 13 14
  - Throttle Position Sensor › Component Information › Diagrams › Diagram Information and Instructions2 3 4 5 6 7 8 9 10 11 12 13 14 15
  - Transmission Position Switch/Sensor, A/T › Component Information › Diagrams › Diagram Information and Instructions2 3 4 5 6 7 8 9 10 11 12 13 14 15
  - Camshaft Timing Oil Control Valve <--> [Variable Valve Timing Actuator] › Component Information18 pages
    Locations
    Diagrams › Diagram Information and Instructions2 3 4 5 6 7 8 9 10 11 12 13 14 15
    Testing and Inspection › Off-Vehicle Inspection2
  - Variable Valve Timing Sensor <--> [Variable Valve Timing Actuator Position Sensor] › Component Information › Locations2 3 4 5 6 7 8 9
  - Vehicle Speed Sensor › Component Information › Diagrams › Diagram Information and Instructions2 3 4 5 6 7 8 9 10 11 12 13 14
- Emission Control Systems33 pages
- Fuel Delivery and Air Induction162 pages
  - Fuel Pressure › System Information › Specifications2
  - Fuel Pressure Release › System Information › Service and Repair2 3 4 5
  - Idle Speed › System Information › Specifications2
  - Air/Fuel Mixture › System Information › System Diagnosis
  - Accelerator Pedal Position Sensor › Component Information › Diagrams › Diagram Information and Instructions2 3 4 5 6 7 8 9 10 11 12 13 14 15
  - Mass Air Flow Meter <--> [Air Flow Meter/Sensor] › Fuel Cut-Out Switch › Component Information › Testing and Inspection
  - Fuel › Component Information › Technical Service Bulletins › Exhaust System - Sulfur Smell
  - Fuel Filter › Fuel Pressure Release › System Information › Service and Repair2 3 4 5
  - Fuel Injector › Component Information6 pages
    Specifications2 3
    Testing and Inspection › Injection/Leakage Inspection2 3
  - Fuel Pressure Regulator › Component Information › Locations2 3 4 5 6
  - Fuel Pressure Pulsation Damper › Component Information › Locations2 3 4
  - Fuel Pump18 pages
    Fuel Pressure › System Information › Specifications2
    Fuel Pump Control Unit › Component Information16 pages
    Locations
    Diagrams › Diagram Information and Instructions2 3 4 5 6 7 8 9 10 11 12 13 14 15
  - Fuel Return Line › Component Information › Locations2 3 4
  - Fuel Supply Line › Component Information › Locations2 3 4
  - Fuel Tank › Fuel Gauge Sender › Component Information › Testing and Inspection
  - Idle Air Control Valve <--> [Idle Speed/Throttle Actuator - Electronic] › Component Information › Description and Operation2 3 4
  - Air Control Valve <--> [Idle Up Control Valve] › Component Information › Testing and Inspection
  - EFI Main Relay <--> [Main Relay (Computer/Fuel System)] › Component Information › Locations2
  - Relays and Modules - Fuel Delivery and Air Induction18 pages
    Fuel Pump Control Unit › Component Information16 pages
    Locations
    Diagrams › Diagram Information and Instructions2 3 4 5 6 7 8 9 10 11 12 13 14 15
    EFI Main Relay <--> [Main Relay (Computer/Fuel System)] › Component Information › Locations2
  - Sensors and Switches - Fuel Delivery and Air Induction32 pages
    Accelerator Pedal Position Sensor › Component Information › Diagrams › Diagram Information and Instructions2 3 4 5 6 7 8 9 10 11 12 13 14 15
    Mass Air Flow Meter <--> [Air Flow Meter/Sensor] › Fuel Cut-Out Switch › Component Information › Testing and Inspection
    Fuel Cut-Out Switch › Component Information › Testing and Inspection
    Throttle Position Sensor › Component Information › Diagrams › Diagram Information and Instructions2 3 4 5 6 7 8 9 10 11 12 13 14 15
  - Throttle Body › Component Information › Locations2 3 4 5 6 7 8 9
  - Throttle Position Sensor › Component Information › Diagrams › Diagram Information and Instructions2 3 4 5 6 7 8 9 10 11 12 13 14 15
  - Variable Induction System6 pages
    Vacuum Reservoir, Variable Induction › Component Information › Testing and Inspection
    Variable Induction Check Valve › Component Information › Testing and Inspection2 3 4
    Intake Air Control Valve <--> [Variable Induction Control Valve] › Component Information › Testing and Inspection
- Ignition System106 pages
  - Firing Order › Component Information › Specifications
  - Ignition Timing › Number One Cylinder › Component Information › Locations
  - Camshaft Position Sensor › Component Information16 pages
    Locations
    Diagrams › Diagram Information and Instructions2 3 4 5 6 7 8 9 10 11 12 13 14 15
  - Crankshaft Position Sensor › Component Information16 pages
    Locations
    Diagrams › Diagram Information and Instructions2 3 4 5 6 7 8 9 10 11 12 13 14 15
  - Ignition Coil › Component Information › Testing and Inspection2
  - Knock Sensor › Component Information16 pages
    Locations
    Diagrams › Diagram Information and Instructions2 3 4 5 6 7 8 9 10 11 12 13 14 15
  - Sensors and Switches - Ignition System52 pages
    Camshaft Position Sensor › Component Information16 pages
    Locations
    Diagrams › Diagram Information and Instructions2 3 4 5 6 7 8 9 10 11 12 13 14 15
    Crankshaft Position Sensor › Component Information16 pages
    Locations
    Diagrams › Diagram Information and Instructions2 3 4 5 6 7 8 9 10 11 12 13 14 15
    Ignition Switch › Component Information4 pages
    Locations
    Testing and Inspection › Symptom Related Diagnostic Procedures2 3
    Knock Sensor › Component Information16 pages
    Locations
    Diagrams › Diagram Information and Instructions2 3 4 5 6 7 8 9 10 11 12 13 14 15
  - Spark Plug › Component Information › Specifications › Torque Specification2
- Transmission Control Systems118 pages
  - Actuators and Solenoids - Transmission and Drivetrain › Actuators and Solenoids - A/T30 pages
    Shift Solenoid, A/T › Component Information › Diagrams › Diagram Information and Instructions2 3 4 5 6 7 8 9 10 11 12 13 14 15
    Throttle Valve Solenoid, A/T › Component Information › Diagrams › Diagram Information and Instructions2 3 4 5 6 7 8 9 10 11 12 13 14 15
  - Lamps and Indicators - Transmission and Drivetrain › Lamps and Indicators - A/T › Shift Indicator › Component Information › Diagrams › Diagram Information and Instructions2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20…28
  - Sensors and Switches - Transmission and Drivetrain › Sensors and Switches - A/T60 pages
    Transmission Mode Switch, A/T › Component Information › Diagrams › Diagram Information and Instructions2 3 4 5 6 7 8 9 10 11 12 13 14 15
    Transmission Position Switch/Sensor, A/T › Component Information › Diagrams › Diagram Information and Instructions2 3 4 5 6 7 8 9 10 11 12 13 14 15
    Transmission Speed Sensor, A/T › Component Information › Diagrams › Diagram Information and Instructions2 3 4 5 6 7 8 9 10 11 12 13 14 15
    Transmission Temperature Sensor/Switch, A/T › Component Information › Diagrams › Diagram Information and Instructions2 3 4 5 6 7 8 9 10 11 12 13 14 15
- PROM - Programmable Read Only Memory › Component Information › Technical Service Bulletins › Engine Controls - ECU Programming Procedure2 3 4 5 6 7 8 9 10 11 12 13 14 15
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