2002 MAZDA 6 clutch

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Page 171 of 909

MAZDA 6 2002 Workshop Manual Suplement CONTROL SYSTEM
F2–19
F2
End Of Sie
1PCM (with built-in BARO sensor and immobilizer
unit)
2Battery
3Starter
4 Starter relay
5 Clutch switch
6 Neutral switch
7 Brake switch
8 Idle switch
9 Cruise co

Page 173 of 909

MAZDA 6 2002 Workshop Manual Suplement CONTROL SYSTEM
F2–21
F2
End Of Sie
1PCM
2 Idle speed control
3Glow control
4 VSC
5 Boost pressure control
6 Fuel injection amount control
7 Fuel injection timing control
8 Multiple fuel injection c

Page 174 of 909

MAZDA 6 2002 Workshop Manual Suplement F2–22
CONTROL SYSTEM
CONTROL DEVICE AND CONTROL RELATIONSHIP CHARTA6E404018881204
×: Applicable
End Of Sie
Item
Input device
Battery××
Starter (starter signal)××××××××× ×
Starter relay

Page 175 of 909

MAZDA 6 2002 Workshop Manual Suplement CONTROL SYSTEM
F2–23
F2
CRUISE CONTROL SYSTEMA6E404018881205Outline
•The cruise control system has been adopted for MZR-CD (RF Turbo) engine models.
•Cruise control module has been equipped int

Page 179 of 909

MAZDA 6 2002 Workshop Manual Suplement ON-BOARD DIAGNOSTIC
F2–27
F2
PID/DATA MONITOR AND RECORDA6E407018881204PID monitoring item table
End Of Sie
SIMULATION TESTA6E407018881205Simulation test item table
×: Applicable
Item Definition C

ON-BOARD DIAGNOSTIC
F2–27
F2
PID/DATA MONITOR AND RECORDA6E407018881204PID monitoring item table
End Of Sie
SIMULATION TESTA6E407018881205Simulation test item table
×: Applicable
Item Definition Condition/unit PCM terminal
ACCS A/C relay ON/OFF 73
ACSW A/C switch ON/OFF 84
APS1 Accelerator position sensor No.1 signal voltage V 10
APS2 Accelerator position sensor No.2 signal voltage V 88
BAROBarometric pressure kPa, inHg
-
Barometric pressure signal voltage V
BOO Brake switch ON/OFF 7
CPP Clutch switch ON/OFF 33
CPP/PNP Neutral switch Neutral/Drive 56
CRUISESW Cruise control switch ON/OFF 64
DTCCNT DTC count - -
ECTEngine coolant temperature°C, °F
87
Engine coolant temperature signal voltage V
FAN2 Cooling fan relay No.2 ON/OFF 76
FAN3 Cooling fan relay No.1 ON/OFF 102
IATIntake air temperature°C, °F
60
Intake air temperature signal voltage V
IMRC VSC solenoid valve ON/OFF 101
INGEAR In gear ON/OFF 33, 56
INJ_LRN_DIS Distance from the last injector learning Km, Mile -
MAFMass air flow amount g/s
9
Mass air flow signal voltage V
MAF_LRN_DIS Distance from the last MAF learning Km, Mile -
MAINRLY PCM control relay ON/OFF 69
MAPManifold absolute pressure kPa, inHg
36
Manifold absolute pressure signal voltage V
MIL Malfunction indicator lamp ON/OFF 71
NUMKEYS Number of keys stored in module - -
RPM Engine speed rpm 3, 29
VPWR Battery positive voltage V 27
VSS Vehicle speed km/h, mph 13, 39
Item Definition OperationTest condition
PCM
terminal
Key ON Idle
ACCS A/C relay ON or OFF××73
EGRA EGR solenoid valve (vent)Actuated by any duty value
(0—100%)××72
EGRV EGR solenoid valve (vacuum)Actuated by any duty value
(0—100%)××99
EGRV2 EGR control solenoid valve ON or OFF××77
FAN Cooling fan No.2 ON or OFF××76
FAN3 Cooling fan No.1 ON or OFF××102
GP_LMP Glow indicator light ON or OFF××97
GPC Glow plug relay ON or OFF××68
IASV Intake shutter solenoid valve (half) ON or OFF××74
IASV2 Intake shutter solenoid valve (full) ON or OFF××100
IMRC VSC solenoid valve ON or OFF××101
VBCV VBC solenoid valveActuated by any duty value
(0—100%)××67

Page 185 of 909

MAZDA 6 2002 Workshop Manual Suplement LOCATION INDEX
F2–33
F2
End Of Sie
1 PCM (with built-in BARO sensor and immobilizer
unit)
(SeeF2–64 PCM REMOVAL/INSTALLATION)
(SeeF2–65 PCM INSPECTION)
(SeeF2–68 PCM CONFIGURATION)
2 Clutch

Page 217 of 909

MAZDA 6 2002 Workshop Manual Suplement CONTROL SYSTEM
F2–65
F2
End Of SiePCM INSPECTIONA6E404018881208Using WDS or Equivalent
Caution
•The PCM terminal voltage vary with change in measuring conditions and vehicle conditions.
Always ca

CONTROL SYSTEM
F2–65
F2
End Of SiePCM INSPECTIONA6E404018881208Using WDS or Equivalent
Caution
•The PCM terminal voltage vary with change in measuring conditions and vehicle conditions.
Always carry out a total inspection of the input systems, output systems, and PCM to determine
the cause of trouble. Otherwise, diagnosis will be incorrect.
Note
•For replace the PCM, setup the WDS and perform the following.
—“PCM configuration” (See F2–68 PCM CONFIGURATION.)
—“Correction after Parts Installation” (See F2–34 Correction after Parts Installation.)
1. Connect the WDS or equivalent to the DLC-2. (See F2–85 ON-BOARD DIAGNOSTIC TEST.)
2. Turn the engine switch to ON.
3. Measure the PID value.
•If PID value is not within the specification, follow the instructions in ACTION column.
PID Monitor Table
Monitor item (Definition)Unit/
ConditionCondition/Specification
(Reference)ActionPCM
terminal
ACCS
(A/C relay)ON/OFF•A/C operating: ON
•Engine switch is on: OFFInspect A/C relay.
(See T–19 RELAY
INSPECTION)73
ACSW
(A/C switch)ON/OFF•A/C switch is on: ON
•A/C switch is off: OFFInspect A/C switch. 84
APS1
(Accelerator position sensor
No.1 signal voltage)V•Accelerator pedal depressed:
3.35—4.03 V
•Accelerator pedal released: 0.4—
0.7 VInspect accelerator position
sensor.
(See F2–72
ACCELERATOR POSITION
SENSOR INSPECTION)10
APS2
(Accelerator position sensor
No.2 signal voltage)V•Accelerator pedal depressed:
3.35—4.03 V
•Accelerator pedal released: 0.4—
0.7 VInspect accelerator position
sensor.
(See F2–72
ACCELERATOR POSITION
SENSOR INSPECTION)88
BARO
(BARO)kPa inHg•Elevation 0—400 m {0—1310 ft}:
100—103 kPa {29.5—30.4 inHg}Replace PCM.
(See F2–64 PCM
REMOVAL/INSTALLATION)–
BARO
(BARO signal voltage)V•Elevation 0—400 m {0—1310 ft}:
approx. 4.0 V
BOO
(Brake switch)ON/OFF•Brake pedal depressed: ON
•Brake pedal released: OFFInspect brake switch. 7
CPP
(Clutch switch)ON/OFF•Clutch pedal depressed: ON
•Clutch pedal released: OFFInspect clutch switch.
(See F2–68 CLUTCH
SWITCH INSPECTION)33
CPP/PNP
(neutral switch)Neutral/Drive•Gear is neutral position: Neutral
•Gear is not neutral position: DriveInspect neutral switch.
(See F2–69 NEUTRAL
SWITCH INSPECTION)56
CRUISESW
(Cruise control switch)ON/OFF•Cruise control switch is on: ON
•Cruise control switch is off: OFFInspect cruise control switch. 64
DTCCNT
(DTC count)–•Number of output DTCFollow DTC inspection.
(See F2–87 DTC TABLE)–
ECT
(ECT)°C°F•ECT is 20°C {68°F}: 20°C
{68°F}
•ECT is 85°C {185°F}: 85°C
{185°F}Inspect ECT sensor.
(See F2–76 ENGINE
COOLANT TEMPERATURE
(ECT) SENSOR
INSPECTION)87
ECT
(ECT signal voltage)V•ECT is 20°C {68°F}: 3.0—3.2 V
•ECT is 85°C {185°F}: 0.7—0.9 V
FAN2
(Cooling fan relay No.2)ON/OFF•Engine coolant temperature is
above 100°C {212°F}: ON
•Others: OFFInspect cooling fan relay
No.2.76
FAN3
(Cooling fan relay No.1)ON/OFF•Engine coolant temperature is
above 108°C {226°F}: ON
•A/C switch is on: ON
•Others: OFFInspect cooling fan relay
No.1.102

Page 218 of 909

MAZDA 6 2002 Workshop Manual Suplement F2–66
CONTROL SYSTEM
IAT
(IAT)°C°F•IAT is 20°C {68°F}: 20°C {68°F}
•IAT is 30°C {86°F}: 30°C {86°F}Inspect IAT sensor No.1.
(See F2–74 MASS AIR
FLOW (MAF)/INTAKE AIR
TEMPERATURE (

F2–66
CONTROL SYSTEM
IAT
(IAT)°C°F•IAT is 20°C {68°F}: 20°C {68°F}
•IAT is 30°C {86°F}: 30°C {86°F}Inspect IAT sensor No.1.
(See F2–74 MASS AIR
FLOW (MAF)/INTAKE AIR
TEMPERATURE (IAT)
SENSOR INSPECTION)60
IAT
(IAT signal voltage)V•IAT is 20°C {68°F}: 2.2—2.5 V
•IAT is 30°C {86°F}: 1.7—2.0 V
IMRC
(VSC solenoid valve)ON/OFF•Idle: ON
•Engine speed is above approx.
2,500 rpm: OFFInspect following PIDs:
BARO, ECT, IAT, RPM, VSS101
INGEAR
(In gear)ON/OFF•Gear is not neutral position and
clutch pedal released: ON
•Gear is neutral position: OFF
•Clutch pedal depressed: OFFInspect following PIDs:
CPP, CPP/PNP33, 56
INJ_LRN_DIS
(Distance from the last
injector learning)Km Mile•Distance from the last injector
learning––
MAF
(Mass air flow amount)g/s•Engine switch is on: approx. 0 g/s
•Idle: 6.8—7.4 g/sInspect MAF/IAT sensor.
(See F2–74 MASS AIR
FLOW (MAF)/INTAKE AIR
TEMPERATURE (IAT)
SENSOR INSPECTION)9
MAF
(Mass air flow signal voltage)V•Engine switch is on: 0.0—1.0 V
•Idle: 1.5—2.1 V
MAF_LRN_DIS
(Distance from the last MAF
learning)Km Mile•Distance from the last MAF
learning––
MAINRLY
(PCM control relay)ON/OFF•Engine switch is on: ONInspect PCM control relay.
(See T–19 RELAY
INSPECTION)69
MAP
(MAP)kPa inHg•Engine switch is on: 100—103
kPa {29.5—30.4 inHg}
•Idle: 100—103 kPa {29.5—30.4
inHg}Inspect boost sensor.
(See F2–78 BOOST
SENSOR INSPECTION)36
MAP
(MAP signal voltage)V•Engine switch is on: 2.1—2.5 V
•Idle: 2.1—2.5 V
MIL
(MIL)ON/OFF•Engine switch is on: ON
•DTC output: ON
•Others: OFFInspect instrument cluster.
Inspect CAN system.
(See T–39 MULTIPLEX
COMMUNICATION
SYSTEM)13, 39
NUMKEYS
(Number of keys stored in
module)–•Number of keys stored in module––
RPM
(Engine speed)rpm•Idle: 725—825 rpmInspect CKP sensor.
(See F2–80 CAMSHAFT
POSITION (CMP) SENSOR
INSPECTION)3, 29
VPWR
(Battery positive voltage)V•Engine switch is ON: B+Inspect Battery.
Inspect fuse.4
VSS
(Vehicle speed)km/h mph•Vehicle speed is 20 km/h {12.5
mph}: 20 km/h {12.5 mph}
•Vehicle speed is 40 km/h {25
mph}: 40 km/h {25 mph}Inspect CAN system.
(See T–39 MULTIPLEX
COMMUNICATION
SYSTEM)13, 39 Monitor item (Definition)Unit/
ConditionCondition/Specification
(Reference)ActionPCM
terminal

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