Mazda RX-8 2004 - Default Chapter; Electric Power Steering (Eps); Electric Power Steering (Eps) Structural View

Mazda RX-8 2004

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ELECTRIC POWER STEERING (EPS)

06–13–2

ELECTRIC POWER STEERING (EPS) STRUCTURAL VIEW

CHU061301034S02

End Of Sie

INSTRUMENT CLUSTER

EPS WARNING LIGHT

STEERING WHEEL

STEERING SHAFT

TORQUE SENSOR

EPS MOTOR

EPS CONTROL MODULE

PCM

STEERING GEAR AND LINKAGE

CHU0613S001

Table of Contents

00 General Information2
- Aim of Development2
- How to Use this Manual8
  - Vehicle Identification Number (VIN) Code8
- Units9
- Sae Standard10
On-Board Diagnostic 01-02 On-Board Diagnostic16
- On-Board Diagnostic Outline17
- Diagnostic Test Mode17
- Dtc Detection Logic and Conditions22
- Koeo/Koer Self-Test30
  - KOEO (Key ON, Engine Off) Self-Test30
  - KOER (Key ON, Engine Running) Self-Test30
- Pid/Data Monitor and Record33
- Simulation Test35
Mechanical 01-10 Mechanical36
- Mechanical Outline37
- 01-10 Mechanical37
Lubrication 01-11 Lubrication54
- Lubrication Structural View55
- Lubrication System Outline55
- Construction/Operation58
  - Metering Oil Pump Construction/Operation58
Cooling System 01-12 Cooling System60
- Default Chapter60
  - Cooling System60
- Cooling System Structural61
- 01-12 Cooling System61
- Reserve Tank Construction63
- Thermostat63
- Construction/Operation63
Intake-Air System 01-13 Intake-Air System66
- Default Chapter67
- Function70
- Construction/Operation71
- Construction72
- System (S-Dais) Operation74
- System (S-Dais) Structure74
Fuel System 01-14 Fuel System82
- Fuel System Outline82
- 01-14 Fuel System82
- Fuel System Structural View . . 01-14-2 Function83
- Operation85
- Outline85
Emission System 01-16 Emission System94
- Emission System Outline95
- (Pcv) System Outline99
- Construction/Operation99
- Construction/Operation104
- Construction/Operation104
Ignition System 01-18 Ignition System110
- Default Chapter110
  - Features110
- Ignition System111
- Ignition Coil Construction/Operation111
  - Construction111
  - Operation111
- High-Tension Lead Construction112
- Spark Plug Construction112
  - Specification112
Table of Contents120
- Control System122
- Engine Control System Outline122
  - Features122
  - Specification122
- Engine Control System Structural View123
- Engine Control System Diagram124
- Engine Control System Wiring Diagram125
- Engine Control System Block Diagram127
- Engine Control System Relation Chart128
- Drive-By-Wire Control Outline129
- Main Relay Control Block Diagram129
- Main Relay Control Operation129
- Main Relay Control Outline129
- Drive-By-Wire Control Block Diagram130
- Drive-By-Wire Control Operation131
  - Idle Speed Control131
  - Accelerator Control131
  - Traction Control132
  - Cruise Control132
  - Vehicle Speed Limiter (AT)133
- Drive-By-Wire Relay Control Operation133
- Drive-By-Wire Relay Control Outline133
- Sequential Dynamic Air Intake System (S-Dais) Control Outline133
- Sequential Dynamic Air Intake System (S-Dais) Control Block Diagram134
- Sequential Dynamic Air Intake System (S-Dais) Control Operation134
  - Operation Outline134
  - Operation List134
  - Operation134
- Fuel Injection Control Outline136
- Fuel Injection Control Block Diagram137
- Fuel Injection Control Operation138
  - Fuel Injection Timing138
  - Air/Fuel Ratio Control139
  - Fuel Injection Distribution Control140
  - Synchronized Injection Control140
  - Non-Synchronized Injection Control142
  - Fuel Cut Control142
- Fuel Pump Control Outline142
- Fuel Pump Control Block Diagram143
- Fuel Pump Control Operation143
  - Operation Condition143
- Fuel Pump Speed Control Outline143
- Fuel Pump Speed Control Block Diagram144
- Electric Spark Advance Control Outline145
- Fuel Pump Speed Control Operation145
  - Operation Conditions145
- Electric Spark Advance Control Block Diagram146
- Electric Spark Advance Control Operation147
  - Ignition Method147
  - Determination of Ignition Timing147
  - Fixed Ignition147
  - Regular Ignition147
- Secondary Air Injection (Air) Control Outline148
- Evaporative Purge Control Block Diagram149
- Evaporative Purge Control Outline149
- Secondary Air Injection (Air) Control Block Diagram149
- Secondary Air Injection (Air) Control Operation149
  - Outline149
  - Operation149
- Evaporative Purge Control Operation150
  - Evaporative Purge Control Execution Condition150
  - Determination of Purge Solenoid Valve Energization Period150
- Metering Oil Pump Control Outline150
- Metering Oil Pump Control Block Diagram151
- Metering Oil Pump Control Operation151
  - Outline151
  - Energization off Function151
  - Initial-Set Function152
  - Monitor Function152
  - Fail-Safe Function152
  - Regular Drive Function153
  - Ignition Switch off Function153
- Heated Oxygen Sensor (Ho2S) Heater Control Outline153
- A/C Cut-Off Control Outline154
- Heated Oxygen Sensor (Ho2S) Heater Control Block Diagram154
- Heated Oxygen Sensor (Ho2S) Heater Control Operation154
  - Operation Conditions154
- A/C Cut-Off Control Block Diagram155
- A/C Cut-Off Control Operation155
  - Operation155
  - A/C Cut-Off at Wide Throttle Valve Opening Angle155
  - A/C Cut-Off at Standing Start Acceleration155
  - A/C Cut-Off at High ECT156
- Electrical Fan Control Block Diagram156
- Electrical Fan Control Operation156
- Electrical Fan Control Outline156
- Generator Control Outline157
- Generator Control Block Diagram158
- Generator Control Operation158
  - Determination of Field Coil Excitation Time158
  - Control159
- Controller Area Network (Can) Operation159
- Controller Area Network (Can) Outline159
- Controller Area Network (Can) System Wiring Diagram159
- Pcm Function161
  - Function List161
- Neutral Switch Construction/Operation (Mt)162
- Neutral Switch Function (Mt)162
- Pcm Construction/Operation162
- Clutch Pedal Position (Cpp) Switch Construction/Operation (Mt)163
- Clutch Pedal Position (Cpp) Switch Function (Mt)163
- Secondary Shutter Valve (Ssv) Switch Function163
- Auxiliary Port Valve (Apv) Position Sensor Construction/Operation164
- Auxiliary Port Valve (Apv) Position Sensor Function164
- Secondary Shutter Valve (Ssv) Switch Construction/Operation164
- Engine Coolant Temperature (Ect) Sensor Construction/Operation165
- Engine Coolant Temperature (Ect) Sensor Function165
- Intake Air Temperature (Iat) Sensor Construction/Operation166
- Intake Air Temperature (Iat) Sensor Function166
- Throttle Position (Tp) Sensor Function166
- Accelerator Pedal Position (App) Sensor Function167
- Throttle Position (Tp) Sensor Construction/Operation167
- Accelerator Pedal Position (App) Sensor Construction/Operation168
- Mass Air Flow (Maf) Sensor Construction/Operation168
- Mass Air Flow (Maf) Sensor Function168
- Front Heated Oxygen Sensor (Ho2S) Construction/Operation169
- Front Heated Oxygen Sensor (Ho2S) Function169
- Barometric Pressure (Baro) Sensor Function170
- Rear Heated Oxygen Sensor (Ho2S) Construction/Operation170
- Rear Heated Oxygen Sensor (Ho2S) Function170
- Barometric Pressure (Baro) Sensor Construction/Operation171
- Knock Sensor (Ks) Construction/Operation171
- Knock Sensor (Ks) Function171
- Eccentric Shaft Position Sensor Construction/Operation172
- Eccentric Shaft Position Sensor Function172
- Metering Oil Pump Switch Construction/Operation173
- Metering Oil Pump Switch Function173
On-Board Diagnostic 02-02 On-Board Diagnostic176
- On-Board Diagnostic System Outline (Tire Pressure Monitoring System)176
  - Block Diagram176
  - Malfunction Detection Function176
- System)178
- On-Board Diagnostic System External Tester Communication Function179
  - External Tester Communication Function179
  - Serial Communication179
- Dlc-2 Construction179
Wheel and Tires 02-12 Wheel and Tires180
- Wheels and Tires Outline181
- System (Tpms) Warning Light183
- Construction/Operation183
- System (Tpms)183
- Diagram183
- Construction/Operation184
- System (Tpms) Control Module185
- Construction/Operation185
- Buzzer Construction185
Front Suspension190
- Front Suspension Outline191
Differential 03-14 Differential206
- Super-Lsd Outline207
- Super-Lsd Construction207
- Super-Lsd Operation208
On-Board Diagnostic 04-02 On-Board Diagnostic216
- Outline (Abs, Dynamic Stability217
- On-Board Diagnostic System217
  - Block Diagram217
- On-Board Diagnostic217
- Control218
  - Memory Function218
  - Fail-Safe Function218
- On-Board Diagnostic System Pid/Data Monitor Function (Abs, Dynamic Stability Control)221
  - PID/DATA Monitor Table (Vehicles with ABS)221
  - PID/DATA Monitor Table (Vehicles with DSC)222
- On-Board Diagnostic System Active Command Modes Function (Abs, Dynamic Stability Control)222
  - Active Command Modes Table (Vehicles with ABS)222
  - Active Command Modes Table (Vehicles with DSC)223
- On-Board Diagnostic System External Tester Communication Function (Abs, Dynamic Stability Control)223
Antilock Brake System 04-13 Antilock Brake System232
- Default Chapter232
  - Antilock Brake System232
- Abs Outline233
- Abs Structural View233
- Operation236
Dynamic Stability Control 04-15 Dynamic Stability Control242
- Outline243
- Operation252
- Outline257
05 Transmission/Transaxle262
- On-Board Diagnostic262
  - Manual Transmission262
- Clutch263
- Clutch Specifications263
- Outline263
- Transmission/Transaxle Features263
- Manual Transmission Shift264
Manual Transmission [Y16M-D] 05-11 Manual Transmission [Y16M-D]278
- Default Chapter279
  - Manual Transmission [Y16M-D]279
- Manual Transmission280
- Manual Transmission280
Automatic Transmission Shift Mechanism 05-14 Automatic Transmission Shift Mechanism338
- Automatic Transmission Shift Mechanism339
- Key Interlock System339
- Operation340
  - Up Switch341
  - Down Switch341
- Steering Shift Switch Construction/Operation341
  - Operation341
  - Electric Power342
- Steering Shift Switch Function341
Electric Power Steering (Eps) 06-13 Electric Power Steering (Eps)350
- Default Chapter351
- Construction356
- Motor Construction/356
- Electric Power Steering (Eps)356
- Operation356
Basic System 07-11 Basic System364
- Basic System Structural365
- Basic System Outline365
Control System 07-40 Control System372
- Control System Structural373
- Control System Outline373
Air Bag System 08-10 Air Bag System390
- Default Chapter390
  - Air Bag System390
- Sas Control Module393
- Function393
- Construction/Operation393
Glass/Windows/Mirrors 09-12 Glass/Windows/Mirrors418
- Rear Window Defroster System419
- Rear Window Defroster System419
- Outer Mirror Structural421
Entertainment 09-20 Entertainment475
- Default Chapter476
  - Entertainment476
- Audio System Structural477
- Entertainment Outline477
- Construction479
- Audio Unit Construction/481
- Operation481
- Function483
- Outline483
- Tweeter Construction488
- Antenna Construction488
- Specifications490
- Gyro Sensor Construction/494
  - Autonomous Navigation Operation494
  - Gps (Global Positioning System) Navigation Outline494
- Navigation Operation495
- Navigation Outline495
Instrumentation/Driver Info. 09-22 Instrumentation/Driver Info.517
- Structural View519
- Specifications519
- Instrument Cluster Outline519
- 09-22 Instrumentation/Driver Info.519
- Operation523
- Outline523

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