Temperature control MAZDA 6 2002 Suplement Manual Online

U–18
CONTROL SYSTEM
1K Ambient
temperature
sensor inputAmbient
temperature sensorDepends on temperature
surrounding sensor
See Figure
2•Inspect for continuity
(Climate control unit—
ambient temperature
sensor: 1K—B, 1I—A)
•Inspect for short circuit
(Climate control unit—
ambient temperature
sensor: 1K—B)
•Inspect ambient
temperature sensor
•Inspect terminal voltage of
climate control unit (2H, 2L)
1L MZR-CD (RF
Turbo) selectGround Under any condition
Below 1.0•Inspect for continuity
(Climate control unit—
ground: 1L—GND)
•Inspect center panel
1M Cabin
temperature
sensor inputCabin temperature
sensorDepends on temperature
surrounding sensor
See Figure
3•Inspect for continuity
(Climate control unit— cabin
temperature sensor: 1M—B,
1I—A)
•Inspect for short circuit
(Climate control unit— cabin
temperature sensor: 1M—B)
•Inspect cabin temperature
sensor
•Inspect terminal voltage of
climate control unit (2H, 2L)
1N—— —— —
1O Water
temperature
sensor inputWater temperature
sensorDepends on temperature
surrounding sensor
See Figure
4•Inspect for continuity
(Climate control unit—water
temperature sensor: 1O—A,
1I—B)
•Inspect for short circuit
(Climate control unit—water
temperature sensor: 1O—A)
•Inspect water temperature
sensor
•Inspect terminal voltage of
climate control unit (2H, 2L)
1P A/C Refrigerant
pressure switchFan switch at OFF
12•Inspect for continuity or
short circuit (Climate control
unit—refrigerant pressure
switch: 1P—A) (Refrigerant
pressure switch—PCM: B—
1AC (except MZR-CD (RF
Turbo)), 84 (MZR-CD (RF
Turbo)))
•Inspect refrigerant pressure
switch
•Inspect PCM terminal
voltage (1AC (except MZR-
CD (RF Turbo)), 84 (MZR-
CD (RF Turbo)))
(See F1–33 PCM
INSPECTION (4WD) )
(See F2–65 PCM
INSPECTION )
Fan switch at 1st
position, A/C switch ONBelow 1.0•Inspect terminal voltage of
climate control unit (2H, 2L) Terminal Signal Connected to Test condition Voltage (V) Action

CONTROL SYSTEM
U–19
U
1Q Evaporator
temperature
sensor input
signalEvaporator
temperature sensorDepends on temperature
surrounding sensor
See Figure
1•Inspect for continuity
(Climate control unit—
evaporator temperature
sensor: 1Q—B, 1I—A)
•Inspect for short circuit
(Climate control unit—
evaporator temperature
sensor: 1Q—B)
•Inspect evaporator
temperature sensor
•Inspect terminal voltage of
climate control unit (2H, 2L)
1R—— —— —
1S Solar radiation
sensor inputSolar radiation
sensorIncandescent light (60W)
shining on solar
radiation sensor from
distance of approx.
100mm {3.9 in}4.0•Inspect for continuity or
short circuit (Climate control
unit—solar radiation sensor:
1S—B, 1B—A)
•Inspect terminal voltage of
climate control unit (1B)
•Inspect solar radiation
sensor Light to solar radiation
sensor blockBelow 1.0
1T GND Ground Under any condition
Below 1.0•Inspect for continuity
(Climate control unit—
ground: 1T—GND)
•Inspect center panel
1U Potentiometer
signalAir mix actuator Set temperature at MAX
COLD0.6•Inspect for continuity or
short circuit (Climate control
unit—air mix actuator: 1U—
C)
•Inspect air mix actuator
•Inspect terminal voltage of
climate control unit (1B) Set temperature at MAX
HOT
4.3
1V—— —— —
1W Potentiometer
signalAirflow mode
actuatorVENT mode 4.3•Inspect for continuity or
short circuit (Climate control
unit—airflow mode actuator:
1W—C)
•Inspect airflow mode
actuator
•Inspect terminal voltage of
climate control unit (1B) BI-LEVEL mode 3.3
HEAT mode 2.3
HEAT/DEF mode 1.5
DEFROSTER mode
0.6
1X Hazard warning
SW signalHazard warning
switchHazard warning switch is
off
12•Inspect for continuity or
short circuit (Climate control
unit—flasher unit: 1X—H)
•Inspect flasher unit
Hazard warning switch is
on Below 1.0•Inspect terminal voltage of
climate control unit (1T)
•Inspect center panel
2A Panel light control
signalPanel light control
switchHeadlight switch ON and
panel light control switch
at max. illumination
0.2•Inspect for continuity
(Climate control unit— panel
light control switch: 2A—C)
(Panel light control switch—
ground: C—GND)
•Inspect panel light control
switch
Headlight switch ON and
panel light control switch
at min. illumination10.2•Inspect for short circuit
(Climate control unit— panel
light control switch: 2A—C) Terminal Signal Connected to Test condition Voltage (V) Action

CONTROL SYSTEM
U–21
U
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VOLTAGE (V)
01 2 3 45
TEMPERATURE
°C {°F} -20
{-4}-10
{14}0
{32}10
{50}20
{68}30
{86}40
{104}50
{122} Figure 1 (Evaporator temperature sensor)
°C {°F}
VOLTAGE (V)
0 1 23 4
5
TEMPERATURE -20
{-4}-10
{14}0
{32}10
{50}20
{68}30
{86}40
{104}50
{122} Figure 2 (Ambient temperature sensor)
°C {°F} 0 1 2 3 45
-20
{-4}-10
{14}0
{32}10
{50}20
{68}30
{86}40
{104}50
{122}
TEMPERATURE
VOLTAGE (V)
Figure 3 (Cabin temperature sensor)
°C {°F} 0 12 3 45
VOLTAGE (V)
10
{50}30
{86}50
{122}70
{158}90
{194}
TEMPERATURE Figure 4 (Water temperature sensor)

U–22–2
ON-BOARD DIAGNOSTIC
PID/Data Monitor and Record Procedure
1. Connect SST (WDS or equivalent) to the vehicle
DLC-2 16-pin connector located as shown in the
figure.
2. Access and monitor PIDs by WDS or equivalent.
End Of SieDTC TABLEA6E857001038202
* : If a DTC not listed above is detected, there is a water heater malfunction, and the water heater must be
replaced.
End Of SiePID/DATA MONITOR AND RECORDA6E857001038209PID Monitoring Item Table
DLC-2
A6E3970W002
DTC Possible cause Page
B1317 Input voltage high (See U–22–3 DTC B1317)
B1318 Input voltage low (See U–23 DTC B1318)
B1342 Malfunction in water heater unit(See U–23 DTC B1342, B2463,
B2537, B2538, B2547)
B2449 Glow plug circuit short to ground (See U–24 DTC B2449, B2450)
B2450 Glow plug circuit open (See U–24 DTC B2449, B2450)
B2451 Fuel pump circuit short to ground (See U–24 DTC B2451, B2452)
B2452 Fuel pump circuit open (See U–24 DTC B2451, B2452)
B2453 Blower fan circuit short to ground (See U–25 DTC B2453, B2454)
B2454 Blower fan circuit open (See U–25 DTC B2453, B2454)
B2463 Overheat(See U–23 DTC B1342, B2463,
B2537, B2538, B2547)
B2537 Water heater system does not start(See U–23 DTC B1342, B2463,
B2537, B2538, B2547)
B2538 Unstable flame(See U–23 DTC B1342, B2463,
B2537, B2538, B2547)
B2547 Flame prior to operation(See U–23 DTC B1342, B2463,
B2537, B2538, B2547)
B2548 Water heater lockout mode (See U–25 DTC B2548)
PID Name
(Definition)Unit/
ConditionCondition/Specification
(Reference)ActionWater
Heater Unit
terminal
CCNTFFH
(Number of continuous
codes)—•DTC is detected: 1—255
•DTC is not detected: 0Perform inspection
using appropriate
DTC.—
ECT
(Engine coolant temperature)°C°F•ECT 20 °C {68 °F}: 20 °C {68 °F}
•ECT 60 °C {140 °F}: 60 °C {140 °F}——
VPWR_FFH
(Module supply voltage)V•Ignition switch ON: B+Inspect water heater
unit power supply
terminal.A
VPWR_LMT
(Low voltage threshold)V•Ignition switch ON: approx. 9.5 VInspect water heater
unit power supply
terminal.A
FAN
(Fan control)%•Blower fan is not operating: 0 %
•Blower fan is operating: 0—100 %——
GPD
(Glow plug duty cycle)%•Water heater unit is not operating: 0 %
•Water heater unit is operating: 0—100 %——
BLOWRMTR
(Blower motor)On/Off•Blower fan is not operating: Off
•Blower fan is operating: On——

TECHNICAL DATA
TD–3
TD
Recommended engine oil
Note
•The maintenance intervals on scheduled maintenance table (See GI–8 SCHEDULED MAINTENANCE
TABLE) can only be supported with the use of following oils.
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COOLING SYSTEMA6E931001001203
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FUEL AND EMISSION CONTROL SYSTEMA6E931001001204
*1: Excludes temporary idle speed drop just after the electrical loads are turned on.
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ItemSpecification
Diesel engine
MZR-CD (RF Turbo)
Engine oil GradeAPI CF CD, CE, CF-4
ACEA B1 or B3
B3B3 or B4
Viscosity (SAE) 5W-30 10W-40 5W-30, 10W-30
RemarksMazda genuine Dexelia oil e.g. —
ItemSpecification
Diesel engine
MZR-CD (RF Turbo)
Coolant capacity (L {US qt, Imp qt}) 9.0 {9.5, 7.9}
Radiator capCap valve opening pressure
94—122
{0.96—1.24, 13.7—17.6}
(kPa {kgf/cm
2, psi})
ThermostatType Wax, bottom-bypass
Initial-opening temperature (°C {°F})80—84
{176—183}
Full-opening temperature (°C {°F}) 95 {203}
Full-open lift (mm {in}) More than 8.5 {0.33}
Cooling fan Motor Current (A)4.4—7.4 (Cooling fan motor No.1)
6.3—9.3 (Cooling fan motor No.2)
ItemEngine
L3 (4WD)
Idle speed
*1(rpm) 650—750 (700±50)
ItemEngine
MZR-CD (RF Turbo)
Idle speed (rpm) 725—825 (775±50)
Idle-up speed (rpm) When A/C is operated 725—825 (775±50)
Boost relief pressure (kPa {mmHg, inHg}) Approx. –14.5 {–108, –4.27}

TECHNICAL DATA
TD–5
TD
End Of SieAUTOMATIC TRANSAXLEA6E931001024203
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PROPELLER SHAFTA6E931001024204
End Of Sie
Item Specification
Transaxle typeJA5AX-EL
Line pressure
(kPa {kgf/cm
2, psi})D range, M range (2GR)Idle 290—490 {3.0—5.0, 42—71}
Stall 1,550—1,750 {15.8—17.8, 225—254}
M range (1GR), R positionIdle 550—750 {5.6—7.6, 80—109}
Stall 1,550—1,750 {15.8—17.8, 225—254}
Engine stall speed
D, M (1GR, 2GR), R 2,200—2,600
(rpm)
Time lag (second)N-D Approx. 0.5—1.0
N-R Approx. 0.6—1.0
Transaxle fluid
temperature (TFT)
sensor-20 °C {−4 °F} 15.87—17.54
0 °C {32 °F} 5.73—6.33
20 °C {68 °F} 2.38—2.63
40 °C {104 °F} 1.10—1.22
60 °C {140 °F} 0.56—0.62
80 °C {176 °F} 0.31—0.34
(kilohm) 100 °C {212 °F} 0.18—0.20
120 °C {248 °F} 0.11—0.12
130 °C {266 °F} 0.09—0.10
Input/turbine
speed sensor(ohm) ATF temperature: 20 °C {68 °F} 513—627
Intermediate
sensor(ohm) ATF temperature: 20 °C {68 °F} 513—627
Vehicle
speedometer
sensor(ohm) ATF temperature: 20 °C {68 °F} 513—627
Solenoid valves (ohm)Shift solenoid A 14—18
Shift solenoid B 14—18
Shift solenoid C 14—18
Neutral shift solenoid valve 14—18
Reduction timing solenoid valve 14—18
TCC solenoid valve 12.0—13.2
2-4 brake solenoid valve 2.6—3.2
High clutch solenoid valve 2.6—3.2
Pressure control solenoid 2.6—3.2
Automatic transaxle fluid
(ATF)Type
M-
III or equivalent (e.g. Dexron ® III )
Capacity (Approximate quantity) (L {US qt, Imp qt}) 8.3 {8.8, 7.3}
Transfer oilGrade API service GL-5
Viscosity SAE 80W-90
Capacity (Approximate quantity) (L {US qt, Imp qt}) 0.62 {0.65, 0.54}
Item Specification
Runout limit mm {in} 0.3 {0.01}
Starting torqueN·m
{kgf·cm}0.29—0.78 {3.0—7.9}

TD–6
TECHNICAL DATA
FRONT AND REAR AXLEA6E931001018201
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STEERING SYSTEMA6E931001034201
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Item Specification
FRONT DRIVE SHAFT
Shaft length
(Air in boot at atmospheric
pressure)(mm {in})Left sideMZR-CD (RF Turbo): 666.1—676.1 {26.23—26.61}
4WD: 667—677 {26.26—26.65}
Right sideMZR-CD (RF Turbo): 615.9—625.9 {24.25—24.64}
4WD: 631—641 {24.85—25.23}
REAR DRIVE SHAFT (4WD)
Shaft length
(Air in boot at atmospheric
pressure)(mm {in})Left side 805.4—815.4 {31.71—32.10}
Right side 852.4—862.4 {33.56—33.95}
REAR DIFFERENTIAL (4WD)
Pinion height (mm {in})–0.025—0.025 {–0.001—0.001}
Backlash of side gear and differential pinion (mm {in}) 0.1 {0.004} or less
Drive pinion preload (N·m kgf·cm, in·lbf) 1.3—1.8 {13.3—18.3, 11.5—15.9}
Backlash of drive pinion and
ring gear(mm {in})Standard 0.09—0.11 {0.0036—0.0043}
Minimum 0.05 {0.002}
Differential oilGrade API service GL-5
ViscosityAbove –18°C {0°F}: SAE 90
Below –18°C {0°F}: SAE 80
Capacity
(Approximate quantity)(L {US qt, lmp qt}) 1.00 {1.06, 0.88}
ELECTRONIC 4WD CONTROL SYSTEM
Differential oil temperature
sensor(kilohm)0°C {32°F} 91—100
10°C {50°F} 56—61
20°C {68°F} 35—39
30°C {86°F} 23—25
40°C {104°F} 14—17
50°C {122°F} 10—11
60°C {140°F} 7.1—7.9
70°C {158°F} 5.0—5.6
80°C {176°F} 3.6—4.0
4WD solenoid
(Rear differential oil temperature
at 20°C {68°F})(ohm) 1.5—2.0
Item Specification
ENGINE SPEED SENSING POWER STEERING
Power
steering oil
pumpOil pump fluid pressure 2WD (Except MZR-CD (RF Turbo)):
10.80—11.29 {110.2—115.1, 1,567—1,637}
MZR-CD (RF Turbo):
11.31—11.80 {115.4—120.3, 1,641—1,711}
4WD: 10.30—10.79 {105.1—110.0, 1,490—1,564} (MPa {kgf·cm
2, psi})
Gear housing fluid pressure 2WD (Except MZR-CD (RF Turbo)):
10.80—11.29 {110.2—115.1, 1,567—1,637}
MZR-CD (RF Turbo):
11.31—11.80 {115.4—120.3, 1,641—1,711}
4WD: 10.30—10.79 {105.1—110.0, 1,490—1,564} (MPa {kgf·cm
2, psi})
Power
steering
systemFluid type
ATF M-
III or equivalent (e.g. Dexron®II)
Capacity (Approximate quantity) MTX (Except MZR-CD (RF Turbo)): 0.80 {0.85, 0.70}
ATX (Except 4WD): 0.87 {0.92, 0.77}
MZR-CD (RF Turbo): 0.86 {0.91, 0.76}
4WD: 0.89 {0.94, 0.78} (L {US qt, Imp qt})