2002 MAZDA 6 sensor

OUTLINE
F1–7
F1
Without Immobilizer system
.
2Y
2Z
2AC
1AB
1Y
2K
2A
1J
1G
1M
2E
1P
2H
2U
2R
2P
2S
2D
2G
2J
2M4Z
4W
4AD
4AA
4G
4J
4A
4D
2X
4O
4B
4L
4F
4P
9
87
5
4
3
10
19
18
17
15
16
14
13
11
12
20
25
26
24
23
21
226
1
2
28
27
A6E39022003
1 HO2S (front)
2 HO2S (rear)
3 TP sensor
4 MAP sensor
5 BARO sensor
6ECT sensor
7 MAF/IAT sensor8 IAT sensor
9 MAF sensor
10 Controller area network (CAN)
11 Knock sensor
12 CKP sensor
13 CMP sensor
14 Fuel injector No.1

F1–8
OUTLINE
.
15 Fuel injector No.2
16 Fuel injector No.3
17 Fuel injector No.4
18 IAC valve
19 Oxygen sensor heater (front)
20 Oxygen sensor heater (rear)
21 A/C relay22 Cooling fan relay
23 Cooling fan relay
24 Cooling fan relay
25 Cooling fan relay
26 Fuel pump relay
27 Ignition switch
28 Main relay
1AA
1Q
1Z
1AC
1K
1C1D 4M4R 4N4K 4H4E
4T 4C4U 1AD1B 1A 2AB4X
39
38
37
35
36
33
31
32
40
44
43
41
42
34
29
30
A6E39022004
29 Generator
30 Refrigerant pressure switch (middle)
31 PSP switch
32 Blower motor
33 Refrigerant pressure switch (high and low)
34 A/C switch
35 Brake switch
36 Brake light37 Ignition coil
38 Generator
39 Purge solenoid valve
40 VAD control solenoid valve
41 EGR valve
42 Variable tumble control solenoid valve
43 VIS control solenoid valve
44 OCV

F1–14
CONTROL SYSTEM
OUTLINEA6E394018880201•The control system is essentially carried over from the current Mazda6 (GG), except for the following. (See
Mazda6 Training Manual 3359-1*-02C.)
Vehicle Adoption
4WD ATX model
•TCM has been adopted. Due to this the PCM terminal of ATX device has been replaced to TCM. The ATX
device information which is needed by the fuel and emission control systems is communicated to the PCM by
the controller area network (CAN).
Unleaded (RON 90 or above) model
•BARO sensor has been eliminated. Due to this the BARO factor for purge control has been eliminated.
Input Device
×:Applicable
—: Not applicable
*
1: For MTX model
*2: With Immobilizer system
CONTROL SYSTEM
Item SignalMazda6 (GG, GY)
Remark for new model
4WD ATX Unleaded
(RON 90 or
above)Current
model
MAF/IAT sensor MAF and IAT×Same as current model
TP sensor TP×Same as current model
MAP sensor MAP×Same as current model
ECT sensor ECT×Same as current model
CMP sensorCylinder
identification×Same as current model
CKP sensor Engine revolution×Same as current model
Knock sensor Knocking×Same as current model
HO2S (Front, Rear)Oxygen
concentration×Same as current model
BARO sensor BARO×—×Same as current model
Neutral switch*
1Load/no load
distinction×Same as current model
Clutch switch*
1Load/no load
distinction×Same as current model
Brake switchBrake pedal
condition×Same as current model
PSP switchP/S oil pump load
condition×Same as current model
VSS Vehicle speed—×—
A/C switch, refrigerant
pressure switch (high,
low pressure)A/C operational×Same as current model
Refrigerant pressure
switch (middle
pressure)A/C compressor load×—×Same as current model
Battery Battery voltage×Same as current model
Generation voltage
(Generator terminal P)Generation voltage×Same as current model
Immobilizer unit*
2Immobilizer system
communication×—×Same as current model

CONTROL SYSTEM
F1–15
F1
Output Device
×:Applied
—: Not applied
* : For L3 engine only
End Of Sie
Item SignalMazda6 (GG, GY)
Remark for new model
4WD ATX Unleaded
(RON 90
or above)Current
model
IAC valve IAC×Same as current model
VIC solenoid valve* VIC×—×Same as current model
Variable tumble control
solenoid valveVTCS×Same as current model
Oil control valve (OCV)*Variable valve
timing control×—×Same as current model
Fuel injectorFuel injection
control×Same as current model
Fuel pump relayFuel pump
control×Same as current model
Ignition coil ESA control×Same as current model
EGR valve EGR control×Same as current model
Purge solenoid valve Purge control×Same as current model
BARO factor for Purge control has been
eliminated.
Heated oxygen sensor
heater
(Front, rear)O2S heater
control×Same as current model
Field coil
(Generator terminal D)Generator
control×Same as current model
Cooling fan relayElectric fan
control×Same as current model
A/C relayA/C cut-off
control×Same as current model
Controller area network
(CAN)Information
function×Same as current model
TCM (ATX) information have been
adopted for 4WD ATX model.

F1–16
CONTROL SYSTEM
STRUCTURAL VIEW (4WD)A6E394018880202
.
End Of Sie
9
8
7
5
4
3
10
1817
15
16
14
13
11
12
20
25
24
23
21
22
6
1
2
19
A6E39402000
1 MAF/IAT sensor
2 TP sensor
3 MAP sensor
4 CMP sensor
5 CKP sensor
6 ECT sensor
7 Knock sensor
8 HO2S (front)
9 HO2S (rear)
10 PSP switch
11 Brake switch
12 VAD control solenoid valve
13 IAC valve14 VIC solenoid valve
15 Variable tumble control solenoid valve
16 OCV
17 Fuel injector
18 Ignition coil
19 Purge solenoid valve
20 EGR valve
21 BARO sensor
22 PCM (R.H.D.)
23 TCM (R.H.D)
24 PCM (L.H.D.)
25 TCM (L.H.D)

F1–18
CONTROL SYSTEM
*1: For MTX model
*2: For 2WD ATX model
*3: For L3 engine
End Of Sie
1 MAF/IAT sensor
2 TP sensor
3 MAP sensor
4 CMP sensor
5 CKP sensor
6 ECT sensor
7 Knock sensor
8 HO2S (front, rear)
9 PSP switch
10 Vehicle speedometer sensor
11
Clutch switch*
1
12
Neutral switch*1
13
TR switch*2
14 Brake switch
15 A/C switch
16 Refrigerant pressure switch
17 Generator (terminal P: generation voltage)
18 Battery
19
VAD control solenoid valve*
3
20 IAC valve
21
VIC solenoid valve*
3
22 Variable tumble control solenoid valve
23
OCV*
3
24 Fuel injector
25 Fuel pump relay
26 Ignition coil
27 Purge solenoid valve
28 EGR valve
29 Oxygen sensor heater (front, rear)
30 A/C relay
31 Cooling fan relay
32 Generator (terminal D: field coil)
33
VAD control*
3
34 IAC
35
VIC*
3
36 VTCS
37
Variable valve timing control*
3
38 Fuel injection control
39 Fuel pump control
40 Electronic spark advance (ESA) control
41 Purge control
42 EGR control
43 Oxygen sensor heater control
44 A/C cut-off control
45 Electrical fan control
46 Generator control

CONTROL SYSTEM
F1–19
F1
CONTROL DEVICE AND CONTROL RELATIONSHIP CHARTA6E394018880204Input devices
x: Applicable
*
1: For unleaded fuel (RON 90 or above) model
*2: For MTX model
*3: For 2WD ATX model
Component
IAT sensor x x x xxxx×
MAF sensor x xx xxxxx
TP sensor x x x x x x x x
MAP sensor x x
ECT sensor xx xxx xxxxx x
CMP sensor x x
CKP sensor xxxxxxxxxxxxx
Knock sensor x
Front HO2S x x
Rear HO2S x
BARO sensor*
1x
Neutral switch*
2xxxx
Clutch switch*
2xxxxx
TR switch*
3xxxxx
Brake switch
PSP switch x x x
VSS×
A/C switch, refrigerant
pressure switch (high,
low pressure)xxx××
Refrigerant pressure
switch (middle pressure)×
Battery voltage x x x×
Generator terminal P
(Generation voltage)xxx×
ABS/TCS HU/CM×
Coil×
Idle air control (IAC)Variable air duct (VAD)
controlVariable intake-air
control (VIC)Variable tumble
control system (VTCS)Variable valve timing controlFuel injection controlFuel pump controlElectronic spark advance
(ESA) controlPurge controlEGR controlFront HO2S heater controlRear HO2S heater controlA/C cut-off controlElectrical fan controlGenerator controlTraction controlImmobilizer system

CONTROL SYSTEM
F1–33
F1
PCM INSPECTION (4WD)A6E394018880207Using SST (WDS or equivalent)
Note
•PIDs for the following parts are not available on this model. Go to the appropriate part inspection page.
—CMP sensor
—Main relay
1. Connect the SST (WDS or equivalent) to the
DLC-2.
2. Turn the ignition switch to ON position.
3. Measure the PID value.
•If PID value is not within the specification,
follow the instructions in Action column.
Note
•The PID/DATA MONITOR function monitors
the calculated value of the input/output
signals in the PCM. Therefore, an output
device malfunction is not directly indicated
as a malfunction of the monitored value for
the output device. If a monitored value of an
output device is out of specification, inspect the monitored value of the input device related to the output
control.
•For input/output signals except those of the monitoring items, use a voltmeter to measure the PCM
terminal voltage.
•The simulation items that are used in the ENGINE CONTROL SYSTEM OPERATION INSPECTION are
as follows.
—ACCS, ALTF, EVAPCP, FAN1, FAN2, FAN3, FP, HTR11, HTR12, IAC, IASV, IMRC, IMTV, VT DUTY1
PID/DATA monitor table (reference)
CONTROL SYSTEM
DLC-2
A6E3970W002
Monitor item
(Definition)Unit/
ConditionCondition/Specification
(Reference)ActionPCM
terminal
ACCS (A/C relay) ON/OFFIgnition switch ON: OFF
A/C switch ON and fan switch ON at
idle: ONInspect following PIDs: RPM, TP,
ECT, ACSW, TR.
Inspect A/C relay.4O
ACSW (A/C switch) ON/OFFA/C switch and fan switch ON at
ignition switch ON: OFF
A/C switch OFF at ignition switch
ON: OFFInspect A/C switch. 1AC
ALTF (Generator field
coil control duty value)%Ignition switch ON: 0%
Idle: 0—100%
Just after A/C switch ON and fan
switch ON at idle: Duty value risesInspect following PIDs: IAT, ECT,
RPM, VPWR, ALTT V.
Inspect generator.1AD
ALTT V (Generator
output voltage)VIgnition switch ON: 0 V
Idle: Approx. 14.9 V
*1 (E/L not
operating)Inspect generator. 1AA
ARPMDES
(Target engine speed)RPM
LF Unleaded fuel (RON 90 or
above) model
No load: 650 rpm
E/L operating: 700 rpm
P/S operating: 700 rpm
A/C ON: 750 rpm
L3 4WD ATX model
No load: 700 rpm
E/L operating: 700 rpm
P/S operating: 700 rpm
A/C ON: 700 rpm*
2, 750 rpm*3
Inspect following PIDs: IAT, RPM,
MAP, ECT, MAF, TP, INGEAR,
ACSW, TR, PSP, ALTT V.
Inspect IAC valve.
Inspect CKP sensor.—
AST (After start timer) Sec———