MAZDA 6 2002 Workshop Manual Suplement

ON-BOARD DIAGNOSTIC
U–25
U
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DTC B2453, B2454A6E857001038208
Diagnostic procedure
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DTC B2548A6E857001038210
Diagnostic procedure
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4INSPECT WATER HEATER UNIT
•Clear the DTC.
•Perform the KOEO Self Test. (See U–22
KOEO Self Test/Combustion Test.)
•Is the same DTC present?Yes Replace the water heater unit.
(See U–15 WATER HEATER UNIT REMOVAL/
INSTALLATION)
No Go to the next step.
5VERIFY AFTER REPAIR PROCEDURE
•Perform after repair procedure. (See U–22–1
After Repair Procedure.)
•Are any DTCs present?Yes Go to the applicable DTC troubleshooting.
No Troubleshooting completed. STEP INSPECTION ACTION
DTCB2453 Blower fan circuit short to ground
B2454 Blower fan circuit open
DETECTION
CONDITION•CPU detects Malfunction in blower fan circuit
POSSIBLE
CAUSE•Water heater unit malfunction
ACTION
•Replace the water heater unit.
(See U–15 WATER HEATER UNIT REMOVAL/INSTALLATION)
DTC B2548 Water heater lockout mode
DETECTION
CONDITION•This DTC is stored if the water heater unit detects the same DTC three times and the water heater unit
then suspends system operation for safety reasons.
POSSIBLE
CAUSE•Water heater unit malfunction
•Fuel pump (water heater system) malfunction
•Generator malfunction
•Battery malfunction
•Open or short circuit in related harness
STEP INSPECTION ACTION
1INSPECT WATER HEATER UNIT
•Perform the lockout reset. (See U–22–1 Lockout
Reset.)
•Read DTCs using the SST (WDS or equivalent)
•Are any DTCs present?Yes Go to applicable DTC troubleshooting.
No Troubleshooting completed.

U–26
TROUBLESHOOTING
FOREWORDA6E858001038201•Confirm the symptom using the following troubleshooting index and carry out the appropriate action.
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TROUBLESHOOTING INDEXA6E858001038202
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TROUBLESHOOTING
No. TROUBLESHOOTING ITEM ACTION
1 Fuel odor•Inspect the water heater system in the vehicle fuel
system.
•Inspect the fuel line for leakage, kinks, or blockage.
•If normal, there is an internal water heater leak.
—Replace the water heater unit.
2 The heater does not achieve full load operation•Replace the water heater unit.
3 Continuous white smoke during combustion operation•Replace the water heater unit.
4 Loss of coolant (leakage). Heater develops smoke during
combustion operation; smell of exhaust fumes extremely
sweet•Inspect the coolant hose for leakage, kinks,
looseness, and loose hose clamps.
•If normal, there is an internal water heater leak.
—Replace the water heater unit.
5 Loss of fuel (leakage)•Inspect the water heater system integration in the
vehicle’s fuel system.
•Inspect the fuel line connections for leakage.
•If normal, there is an internal water heater leak.
—Replace the water heater unit.
6 The water heater unit does not communicate with the SST
(WDS or equivalent)•Refer to section T, ON-BOARD DIAGNOSTIC
[MULTIPLEX COMMUNICATION SYSTEM].

TD–1
TD
TDTECHNICAL DATA
TECHNICAL DATA............................................. TD-2
ENGINE ............................................................ TD-2
LUBRICATION SYSTEM .................................. TD-2
COOLING SYSTEM .......................................... TD-3
FUEL AND EMISSION CONTROL
SYSTEM ........................................................ TD-3
ENGINE ELECTRICAL SYSTEM ..................... TD-4
CLUTCH............................................................ TD-4
MANUAL TRANSAXLE ..................................... TD-4
AUTOMATIC TRANSAXLE............................... TD-5
PROPELLER SHAFT ........................................ TD-5
FRONT AND REAR AXLE ................................ TD-6
STEERING SYSTEM ........................................ TD-6
BRAKING SYSTEM .......................................... TD-7
SUSPENSION................................................... TD-7
BODY ELECTRICAL SYSTEM ......................... TD-8
HEATER AND AIR CONDITIONER
SYSTEMS ...................................................... TD-9

TD–2
TECHNICAL DATA
ENGINEA6E931001001201
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LUBRICATION SYSTEMA6E931001001202
TECHNICAL DATA
ItemSpecification
Diesel engine
MZR-CD (RF Turbo)
MECHANICAL
Valve clearance
[engine cold](mm {in})IN0.12—0.18
{0.005—0.007}
(0.15±0.03 {0.006±0.0011})
EX0.32—0.38
{0.013—0.014}
(0.35±0.03 {0.014±0.0011})
Compression pressure(kPa {kgf/cm
2, psi}) [rpm]Standard3,500
{35.7, 507.7}
[250]
Minimum3,100
{31.6, 449.4}
[250]
Maximum difference
between cylinders196.1 {1.999, 28.44}
Cylinder head bolt length (mm {in})Standard 159.7—160.3 {6.288—6.311}
Maximum 161.0 {6.338}
Pushing distance of the front oil seal
(from the edge of the oil pump body)(mm {in})0—0.5
{0—0.019}
Pushing distance of the rear oil seal
(from the edge of the rear cover)(mm {in})0—0.5
{0—0.019}
Pushing distance of the camshaft oil seal
(from the edge of the cylinder head)(mm {in})0.5—1.5
{0.020—0.059}
Timing belt auto tensioner rod projection (free length) (mm {in})12.9—14.6
{0.508—0.574}
ItemSpecification
Diesel engine
MZR-CD (RF Turbo)
Oil pressure
(approximate quantity)
[oil temperature: 100°C {212°F}](kPa {kgf/cm
2, psi}) min [rpm]147 {1.5, 21} [1,000],
343 {3.5, 50} [3,000]
Oil capacity
(approximate quantity)Total (dry engine)
5.5 {5.8, 4.8}
(L {US qt, Imp qt})
Oil replacement
4.8 {5.1, 4.2}
(L {US qt, Imp qt})
Oil and oil filter replacement
5.0 {5.3, 4.4}
(L {US qt, Imp qt})

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}

TD–4
TECHNICAL DATA
ENGINE ELECTRICAL SYSTEMA6E931001001205
*1: Back-up current is the constant flow of current present (for the audio unit, clock, PCM, etc.) when the engine
switch is off and with the key removed.
*
2: Must not be 0 A.
*3: Cold area
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CLUTCHA6E931001024201
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MANUAL TRANSAXLEA6E931001024202
ItemSpecification
Diesel engine
MZR-CD (RF Turbo)
BatteryElectrolyte gravity 1.27—1.29
Back-up current*
1(mA) Max.20
Type
95D31L, 115D31L
*3
Test load chart (A) Battery type95D31L (64) 250
115D31L (70) *3320
Slow-charge (A)Battery type
(5-hour rate)95D31L (64) 6.5—8.0
115D31L (70)
*37.0—8.5
Quick-charge
Battery type
(5-hour rate)95D31L (64) 40
(A/30 min)
115D31L (70)
*345
GeneratorStandard voltage (V)Ignition switch ON TerminalBB+
L Approx. 1
SB+
Idle [20°C {68°F}] TerminalB
14.1—14.7 L
S
Generated current*
2
(reference) (A) Engine speed (rpm)1,000 0—80
2,000 0—90
Starter No load testVoltage (V) 11
Current (A) Below 130
Item Specification
Clutch coverDiaphragm
spring fingersDepth mm {in} 0.6 {0.024}
Misalignment mm {in} 0.6 {0.024}
Maximum clearance of flatness of the
pressure platemm {in} 0.3 {0.012}
Flywheel Run out limit mm {in} 0.3 {0.012}
Item Specification
Manual transaxle typeA65M-R
Transaxle controlFloor-shift
Operation systemCable
Shift assistSynchromesh
Gear ratio1st 3.416
2nd 1.944
3rd 1.258
4th 0.902
5th 0.659
Reverse 3.252
Final gear ratio3.588
Transaxle oilGrade API service GL-4 or GL-5
Viscosity (All-season) SAE 75W-90
Capacity (approximate quantity)
2.30 {2.40, 2.00}
(L {US qt, Imp qt})

TECHNICAL DATA
TD–5
TD
End Of SieAUTOMATIC TRANSAXLEA6E931001024203
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PROPELLER SHAFTA6E931001024204
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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})

TECHNICAL DATA
TD–7
TD
BRAKING SYSTEMA6E931001020201
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SUSPENSIONA6E931001013201Suspension
WGN (2WD)
*1: Engine coolant and engine oil are at specified level. Spare tire, jack, and tools are in designated position. Adjust to the median when carrying out wheel alignment.
*2: Difference between left and right must not exceed 1 ° 30 ′.*3: Distance between wheel center and fender brim is following. Front: 405 mm {15.94 in} (reference value) Rear:
407 mm {16.02 in} (reference value)
WGN (4WD)
*1: Engine coolant and engine oil are at specified level. Spare tire, jack, and tools are in designated position. Adjust to the median when carrying out wheel alignment.
*2: Difference between left and right must not exceed 1 ° 30 ′.
Item Specification
CONVENTIONAL BRAKE SYSTEM
Front disc
brake Minimum disc pad
thickness
(mm {in})L8, LF (GCC specs.): 22 mm {0.87 in}
LF (European (L.H.D. U.K.) specs.), L3, MZR-CD (RF Turbo):
23 mm {0.91 in}
Minimum disc plate
thickness (mm {in})L8, LF (GCC specs.): 22.8 mm {0.90 in}
LF (European (L.H.D. U.K.) specs.), L3, MZR-CD (RF Turbo): 23.8 mm {0.94 in}
Item Fuel gauge indication
Empty 1/4 1/2 3/4 Full
Fr o nt wh ee l
alignment
(Unloaded)
*1
Maximum steering
angle Inner
18 inch wheel specification vehicles: 36
°±3°
Except for above: 39 °±3°
Outer 18 inch wheel specification vehicles: 30
°±3°
Except for above: 31 °±3°
Total toe-in (mm {in}) Tire: 2
±4 {0.08 ±0.16}, Rim inner: 1 ±3 {0.04 ±0.12}
(degree) 0 °11 ′±0°22 ′
Caster angle
*2
(Reference value) normal 3
°30' ±1 ° 3°32' ±1 ° 3°34' ±1 ° 3°37' ±1 ° 3°40' ±1°
elevated*33 °25' ±1 ° 3°27' ±1 ° 3°29' ±1 ° 3°32' ±1 ° 3°35' ±1°
Camber angle
*2
(Reference value) normal –0
°14' ±1 ° –0°15' ±1°
elevated*3–0 °07' ±1 ° –0°08' ±1°
Steering axis inclination
(Reference value) normal 5
°24'
elevated
*35 °15' 5 °16'
Rear wheel
alignment
(Unloaded)
*1
Total toe-in (mm {in}) Tire: 2
±4 {0.08 ±0.16}, Rim inner: 1 ±3 {0.04 ±0.12}
(degree) 0 °11 ′±0°22 ′
Camber angle
*2 normal –0 °59 ′±1° –1°00 ′±1° –1°02 ′±1° –1°04 ′±1° –1°06 ′±1°
elevated
*3–0 °52 ′±1° –0°53 ′±1° –0°55 ′±1° –0°56 ′±1° –0°58 ′±1°
Thrust angle 0 °±0°48 ′
Item Fuel gauge indication
Empty 1/4 1/2 3/4 Full
Fr o nt wh ee l
alignment
(Unloaded)
*1
Maximum steering
angle Inner 39
°±3°
Outer 31 °±3°
Total toe-in (mm {in}) Tire: 2
±4 {0.08 ±0.16}, Rim inner: 1 ±3 {0.04 ±0.12}
(degree) 0 °11 ′±0°22 ′
Caster angle
*2 (Reference value) 3
°25' ±1 ° 3°27' ±1 ° 3°29' ±1 ° 3°32' ±1 ° 3°35' ±1°
Camber angle
*2 (Reference value) –0
°07' ±1 ° –0°08' ±1°
Steering axis inclination
(Reference value) 5
°15' 5 °16'
Rear wheel
alignment
(Unloaded)
*1
Total toe-in (mm {in}) Tire: 2
±4 {0.08 ±0.16}, Rim inner: 1 ±3 {0.04 ±0.12}
(degree) 0 °11 ′±0°22 ′
Camber angle
*2 –0 °55 ′±1° –0°57 ′±1° –0°59 ′±1° –1°01 ′±1° –1°03 ′±1°
Thrust angle 0 °±0°48 ′

TD–8
TECHNICAL DATA
Wheel and Tires
*
1: Total weight exceeds 160 g {5.65 oz}.
*2: One balance weight: 60 g {2.12 oz} max. If the total weight exceeds 100 g {3.53 oz} on one side, rebalance after moving the tire around on the rim. Do not use 3 or more balance weights.
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BODY ELECTRICAL SYSTEMA6E931001047201
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Item Specification
Standard tire and wheel
Wheel Size 15
× 6JJ 16 × 7JJ 17 × 7JJ 18 × 7J
Offset (mm {in}) 50 {1.97} 55 {2.17} 55 {2.17}
Pitch circle diameter (mm {in}) 114.3 {4.50} 114.3 {4.50}
Material Steel Aluminum alloy Aluminum alloy
Tire Size 195/65R15 91V 205/55R16 91V
215/45R17
87W 215/45R17
91W
(reinforced) 215/45R18 89W
Air pressure
(kPa {kgf/
cm
2, psi}) Front
Up to 4
persons
220 {2.2, 32} 2WD: 230
{2.3, 33}
4WD: 250 {2.5, 36} 220 {2.2, 32}
Full load 240 {2.4, 35} 2WD: 240
{2.4, 35}
4WD: 250 {2.5, 36} 240 {2.4, 35}
Rear Up to 4
persons
220 {2.2, 32} 2WD: 230
{2.3, 33}
4WD: 250 {2.5, 36} 220 {2.2, 32}
Full load 300 {3.1, 44} 270 {2.8, 39} 270 {2.8, 39}
Remaining tread (mm {in}) 1.6 {0.06} 1.6 {0.06}
Wheel
and
tire Wheel and tire
runout
Radial
direction
1.5 {0.06} max. 1.5 {0.06} max.
(mm {in}) Lateral direction 2.5 {0.10} max. 2.0 {0.08} max. 2.0 {0.08} max.
Wheel imbalance (g {oz}) Knock-type*
2:
9 {0.32} max. Adhesive-type*
1:
13 {0.46} max.
Knock-type*
2:
8 {0.28} max. Adhesive-type*
1:
11 {0.39} max.
Knock-type*
2:
7 {0.25} max. Adhesive-type*
1:
10 {0.35} max.
Knock-type*
2:
6 {0.21} max.
Temporary spare tire
Wheel Size 15
×4T
Offset (mm {in}) 40 {1.57}
Pitch circle diameter (mm {in}) 114.3 {4.50}
Material Steel
Tire Size T115/70 D15 T135/90 D15
Air pressure
(kPa {kgf/cm
2,
psi}) 420 {4.2, 60}
Wheel
and
tire Wheel and tire
runout
Radial
direction
2.0 {0.08} max.
(mm {in}) Lateral direction 2.5 {0.10} max.
Item Specifications
Exterior light bulb capacity (W) High-mount brake
lightWGNIn-vehicle-type 18.4
× 1
Rear spoiler
type 4
× 1 (LED)
Interior light bulb capacity (W) Cargo compartment light 10 × 1