Mazda 2006 MX-5 - Table of Contents

CONTROL SYSTEM
01–40–1
01–40
01–40 CONTROL SYSTEM
ENGINE CONTROL SYSTEM OUTLINE
[LF] . . . . . . . . . . . . . . . . . . . . . . . . . . . . 01–40–3
Features . . . . . . . . . . . . . . . . . . . . . . . . 01–40–3
Specification. . . . . . . . . . . . . . . . . . . . . 01–40–3
ENGINE CONTROL SYSTEM
STRUCTURAL VIEW [LF]. . . . . . . . . . . 01–40–4
ENGINE CONTROL SYSTEM DIAGRAM
[LF] . . . . . . . . . . . . . . . . . . . . . . . . . . . . 01–40–5
ENGINE CONTROL SYSTEM
WIRING DIAGRAM [LF] . . . . . . . . . . . . 01–40–6
ENGINE CONTROL SYSTEM
BLOCK DIAGRAM [LF] . . . . . . . . . . . . 01–40–8
ENGINE CONTROL SYSTEM
RELATION CHART [LF] . . . . . . . . . . . . 01–40–9
MAIN RELAY CONTROL OUTLINE
[LF] . . . . . . . . . . . . . . . . . . . . . . . . . . . . 01–40–11
MAIN RELAY CONTROL
BLOCK DIAGRAM [LF] . . . . . . . . . . . . 01–40–11
MAIN RELAY CONTROL OPERATION
[LF] . . . . . . . . . . . . . . . . . . . . . . . . . . . . 01–40–11
DRIVE-BY-WIRE CONTROL OUTLINE
[LF] . . . . . . . . . . . . . . . . . . . . . . . . . . . . 01–40–11
DRIVE-BY-WIRE CONTROL
BLOCK DIAGRAM [LF] . . . . . . . . . . . . 01–40–12
DRIVE-BY-WIRE CONTROL
OPERATION [LF] . . . . . . . . . . . . . . . . . 01–40–13
Idle Speed Control . . . . . . . . . . . . . . . . 01–40–13
Accelerator Control . . . . . . . . . . . . . . . 01–40–13
Traction Control . . . . . . . . . . . . . . . . . . 01–40–14
Cruise Control . . . . . . . . . . . . . . . . . . . 01–40–14
DRIVE-BY-WIRE RELAY CONTROL
OUTLINE [LF] . . . . . . . . . . . . . . . . . . . . 01–40–15
DRIVE-BY-WIRE RELAY CONTROL
OPERATION [LF] . . . . . . . . . . . . . . . . . 01–40–15
VARIABLE INTAKE AIR CONTROL
OUTLINE [LF] . . . . . . . . . . . . . . . . . . . . 01–40–15
VARIABLE INTAKE AIR CONTROL
BLOCK DIAGRAM [LF] . . . . . . . . . . . . 01–40–15
VARIABLE INTAKE AIR CONTROL
OPERATION [LF] . . . . . . . . . . . . . . . . . 01–40–16
VARIABLE VALVE TIMING CONTROL
OUTLINE [LF] . . . . . . . . . . . . . . . . . . . . 01–40–16
VARIABLE VALVE TIMING CONTROL
BLOCK DIAGRAM [LF] . . . . . . . . . . . . 01–40–16
VARIABLE VALVE TIMING CONTROL
OPERATION [LF] . . . . . . . . . . . . . . . . . 01–40–16
Cleaning Mode. . . . . . . . . . . . . . . . . . . 01–40–16
Maximum Cam Retard Mode . . . . . . . . 01–40–17
Feedback Hold Mode . . . . . . . . . . . . . . 01–40–17
Feedback Mode . . . . . . . . . . . . . . . . . . 01–40–18
Advance Spark Speed Correction . . . . 01–40–18
Valve Timing Determination . . . . . . . . . 01–40–18
FUEL INJECTION CONTROL
OUTLINE [LF] . . . . . . . . . . . . . . . . . . . . 01–40–18
FUEL INJECTION CONTROL
BLOCK DIAGRAM [LF] . . . . . . . . . . . . 01–40–19
FUEL INJECTION CONTROL
OPERATION [LF] . . . . . . . . . . . . . . . . . 01–40–20
Operation . . . . . . . . . . . . . . . . . . . . . . . 01–40–20
Injection Time. . . . . . . . . . . . . . . . . . . . 01–40–20
Determination of Effective
Injection Time. . . . . . . . . . . . . . . . . . . 01–40–21
Fuel Cut. . . . . . . . . . . . . . . . . . . . . . . . . 01–40–23
FUEL PUMP CONTROL OUTLINE
[LF] . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 01–40–24
FUEL PUMP CONTROL
BLOCK DIAGRAM [LF] . . . . . . . . . . . . . 01–40–24
FUEL PUMP CONTROL OPERATION
[LF] . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 01–40–24
Operation Condition . . . . . . . . . . . . . . . 01–40–24
Operation Inhibition Condition. . . . . . . . 01–40–24
ELECTRONIC SPARK ADVANCE (ESA)
CONTROL OUTLINE [LF] . . . . . . . . . . . 01–40–24
ELECTRONIC SPARK ADVANCE (ESA)
CONTROL BLOCK DIAGRAM [LF] . . . . 01–40–25
ELECTRONIC SPARK ADVANCE (ESA)
CONTROL OPERATION [LF]. . . . . . . . . 01–40–26
Ignition Method . . . . . . . . . . . . . . . . . . . 01–40–26
Determination of Ignition Timing . . . . . . 01–40–27
Ignition Inhibition Condition . . . . . . . . . . 01–40–28
EVAPORATIVE PURGE CONTROL
OUTLINE [LF]. . . . . . . . . . . . . . . . . . . . . 01–40–28
EVAPORATIVE PURGE CONTROL
BLOCK DIAGRAM [LF] . . . . . . . . . . . . . 01–40–29
EVAPORATIVE PURGE CONTROL
OPERATION [LF] . . . . . . . . . . . . . . . . . . 01–40–29
Determination of Purge Solenoid Valve
Energization Time . . . . . . . . . . . . . . . . 01–40–29
Calculation Method for Purge
Flow Amount . . . . . . . . . . . . . . . . . . . . 01–40–29
Operation Conditions . . . . . . . . . . . . . . 01–40–29
EGR CONTROL OUTLINE [LF] . . . . . . . . 01–40–30
EGR CONTROL BLOCK DIAGRAM
[LF] . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 01–40–30
EGR CONTROL OPERATION [LF] . . . . . 01–40–30
Stepping Motor Operation Principles . . 01–40–30
Control Outline . . . . . . . . . . . . . . . . . . . 01–40–31
Target EGR Valve Position . . . . . . . . . . 01–40–31
Inhibition Conditions . . . . . . . . . . . . . . . 01–40–31
HEATED OXYGEN SENSOR (HO2S)
HEATER CONTROL OUTLINE [LF] . . . 01–40–32
HEATED OXYGEN SENSOR (HO2S)
HEATER CONTROL
BLOCK DIAGRAM [LF] . . . . . . . . . . . . . 01–40–32
HEATED OXYGEN SENSOR (HO2S)
HEATER CONTROL OPERATION
[LF] . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 01–40–32
Operation Conditions . . . . . . . . . . . . . . 01–40–32
A/C CUT-OFF CONTROL OUTLINE
[LF] . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 01–40–33
A/C CUT-OFF CONTROL
BLOCK DIAGRAM [LF] . . . . . . . . . . . . . 01–40–33
A/C CUT-OFF CONTROL OPERATION
[LF] . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 01–40–33
ELECTRICAL FAN CONTROL OUTLINE
[LF] . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 01–40–34
ELECTRICAL FAN CONTROL
BLOCK DIAGRAM [LF] . . . . . . . . . . . . . 01–40–34
ELECTRICAL FAN CONTROL
OPERATION [LF] . . . . . . . . . . . . . . . . . . 01–40–34
STARTER CUT-OFF CONTROL
OUTLINE [LF]. . . . . . . . . . . . . . . . . . . . . 01–40–36
STARTER CUT-OFF CONTROL
BLOCK DIAGRAM [LF] . . . . . . . . . . . . . 01–40–36