2002 MAZDA 6 parking brake

K2–66
AUTOMATIC TRANSAXLE
P0711Transaxle fluid temperature (TFT)
sensor malfunction (stuck)•TFT sensor signal stays
outside normal temperature
range for 10 minute or more—Available
P0712Transaxle fluid temperature (TFT)
sensor circuit malfunction (short
circuit)•Signals form TFT sensor are
155 °C {311 °F} or greater
for 10 min.
•Inhibits feedback control
•Engine coolant temperature
signal are used for shifting.Available
P0713Transaxle fluid temperature (TFT)
sensor circuit malfunction (open
circuit)•Vehicle speed is 20 km/h
{12.4 mph} or greater, and
signals from TFT sensor are
–30 °C {–22 °F} or less for
150 seconds or moreAvailable
P0715Input/turbine speed sensor circuit
malfunction•Input/turbine speed sensor
is 600 rpm or less while
engine speed is 1500 rpm or
greater and vehicle speed is
40 km/h {24.8 mph} or
greater in D ranges.•Inhibits shift control Available
P0720Vehicle speedometer sensor
circuit malfunction•Parking gear rotation
detected by VSS is 150 rpm
or less while intermediate
sensor 1400 rpm or greater
in D range for 2 second or
more.•Inhibits SLOPE mode,
feedback control, torque
reduction controlAvailable
P0740Torque converter clutch (TCC)
system•RPM difference between
crankshaft (engine speed
signal) and reverse clutch
drum (input/turbine speed
sensor signal) exceeds the
pre-programmed value—Available
P0743Torque converter clutch (TCC)
solenoid valve malfunction (open/
short)•Open or short in torque
converter clutch solenoid
valve circuit (Voltage
different from on/off signal
relayed by CPU in TCM is
detected while TCM is
monitoring solenoid output
voltage.)•Stops driving of TCC
solenoid valve (OFF)Inhibition
P0748Pressure control solenoid
malfunction (open/short)•Open or short in pressure
control solenoid circuit
(Voltage different from on/off
signal relayed by CPU in
TCM is detected while TCM
is monitoring solenoid
output voltage.)•Stops driving of pressure
control solenoid, 2-4 brake
solenoid valve, and high
clutch solenoid valve (OFF)
•Inhibit feedback control.Available
P0751Shift solenoid A malfunction
(stuck off)•Difference between actual
gear ratio and gear ratio set
in TCM is large—Available
P0752Shift solenoid A malfunction
(stuck on)•Difference between actual
gear ratio and gear ratio set
in TCM is large—Available
P0753Shift solenoid A malfunction
(open/short)•Open or short in shift
solenoid A circuit (Voltage
different from on/off signal
relayed by CPU in TCM is
detected while TCM is
monitoring solenoid output
voltage.)•Stops driving all ON/OFF
type solenoids (OFF) and
TCC solenoid valve (OFF)Inhibition
P0756Shift solenoid B malfunction
(stuck off)•Difference between actual
gear ratio and gear ratio set
in TCM is large—Available
P0757Shift solenoid B malfunction
(stuck on)•Difference between actual
gear ratio and gear ratio set
in TCM is large—Available DTC
No.On-board diagnostic function Detection condition Fail-safe TCC

K2–72
AUTOMATIC TRANSAXLE
MECHANICAL SYSTEM TESTA6E571401030209Mechanical System Test Preparation
1. Apply the parking brake and use wheel chocks at the front and rear of the wheels.
2. Inspect the engine coolant. (See Section E.)
3. Inspect the engine oil. (See D–8 ENGINE OIL INSPECTION.)
4. Inspect the ATF levels. (See K2–79 Automatic Transaxle Fluid (ATF) Level Inspection.)
5. Inspect the idle speed and ignition timing in P position. (See F1–22 IDLE SPEED INSPECTION (4WD).)
Line Pressure Test
Note
•Line pressure cannot be measured on the JA5AX-EL automatic transaxle. Measure the low clutch
pressure in place of D and M range line pressures. Measure the reverse clutch pressure in place of R
position line pressure.
1. Engine idling.
(1) Perform mechanical system test preparation. (See K2–72 Mechanical System Test Preparation.)
Warning
•Removing the plug when the ATF is hot can be dangerous. Hot ATF can come out of the opening
and badly burn you. Before removing the square-head plug, allow the ATF to cool.
(2) Remove the plug and O-ring shown in the
figure.
AUTOMATIC TRANSAXLE
LINE PRESSURE INSPECTION PORT
D,M RANGES
FRONT
A6E5714W101
LINE PRESSURE INSPECTION PORT
R POSITION
FRONT
A6E5714W102

AUTOMATIC TRANSAXLE
K2–79
K2
Automatic Transaxle Fluid (ATF) Level Inspection
Caution
•The ATF amount varies according to ATF's temperature. Therefore, when checking the ATF level or
replacing the ATF, use a thermometer to measure the temperature then adjust the ATF amount to
the specified level according to the specified temperature.
1. Park the vehicle on level ground.
2. Apply the parking brake and position wheel chocks securely to prevent the vehicle from rolling.
3. Adjust the length of the thermistor probe measure to the measure same as the dipstick and hold the probe with
a paper holder.
4. Insert into the filler tube and measure the
temperature.
5. Warm up the engine until the ATF reaches (60—
70 °C {140—158 °F}).
Caution
•Do not warm the transaxle by performing
stalls. This will damage the torque
converter.
Note
•In some cases it may be necessary to
inspect the ATF in the cool range 15—25 °C
{59—77 °F} before warming up the engine.
6. While depressing the brake pedal, shift the selector lever to each range (P—M), pausing momentarily in each
range.
7. Shift back to P position.
Note
•If the ATF level is too high or too low in hot condition, the following problems may be the cause.
8. While the engine is idling, verify that the ATF level
is in the HOT (65 °C {149 °F}) range. Add the
ATF specified type of, if necessary. (See K2–80
AUTOMATIC TRANSAXLE FLUID (ATF)
REPLACEMENT.)
ATF type
ATF M-III or equivalent (e.g. Dexron
®III)
Capacity (Approximate quantity)
8.3 L {8.8 US qt, 7.3 Imp qt}
End Of Sie
ATF level Condition Possible cause
Too lowLine pressure is
lower than the
specificationAir in transaxle oil passage
due to slipping or damaged
clutch mechanism
Too high ATF is hotATF deteriorated due to
slipping clutch or stuck
valve
A6E5614W003
A6E5714W105

TROUBLESHOOTING
K2–183
K2
AUTOMATIC TRANSAXLE SYMPTOM TROUBLESHOOTINGA6E578001030203Diagnostic Index
•Use the chart below to verify the symptoms of the trouble in order to diagnose the appropriate area.
No. TROUBLESHOOTING ITEM DESCRIPTION PAGE
1•Vehicle does not move in D range,
or in R position•Vehicle does not move when accelerator
pedal depressed.(See K2–188 NO.1 VEHICLE
DOES NOT MOVE IN D
RANGE, OR IN R POSITION.)
2•Vehicle moves in N position•Vehicle creeps in N position.
•Vehicle creeps if brake pedal not
depressed in N position.(See K2–188 NO.2 VEHICLE
MOVES IN N POSITION.)
3•Vehicle moves in P position, or
parking gear does not disengage
when P is disengaged•Vehicle rolls when on a downward slope
and tires do not lock in P position.
•Tires locked when P disengaged,
vehicle does not move in D range, and R
position when accelerator pedal
depressed, and engine remains in stall
condition.(See K2–189 NO.3 VEHICLE
MOVES IN P POSITION, OR
PARKING GEAR DOES NOT
DISENGAGE WHEN P IS
DISENGAGED.)
4•Excessive creep•Vehicle accelerates in D range, and R
position without depressing accelerator
pedal.(See K2–189 NO.4
EXCESSIVE CREEP.)
5•No creep at all•Vehicle does not move in D range, or R
position when idling on flat paved road.(See K2–189 NO.5 NO CREEP
AT ALL.)
6•Low maximum speed and poor
acceleration•Vehicle acceleration poor at start.
•Delayed acceleration when accelerator
pedal depressed while driving.(See K2–190 NO.6 LOW
MAXIMUM SPEED AND
POOR ACCELERATION.)
7•No shifting•Single shift range only.
•Sometimes it shifts correctly.(See K2–191 NO.7 NO
SHIFTING.)
8•Does not shift to fifth gear (5GR)•Vehicle does not upshift from 4GR to
5GR even though vehicle speed
increased.
•Vehicle does not shift to 5GR even
though accelerator pedal released in D
range at 60 km/h {37 mph}.(See K2–192 NO.8 DOES NOT
SHIFT TO FIFTH GEAR
(5GR).)
9•Abnormal shifting•Shifts incorrectly (incorrect shift pattern). (See K2–193 NO.9
ABNORMAL SHIFTING.)
10•Frequent shifting•Downshifting occurs immediately even
when accelerator pedal depressed
slightly in D range.(See K2–193 NO.10
FREQUENT SHIFTING.)
11•Shift point is high or low•Shift point considerably different from
automatic shift diagram.
•Shift delays when accelerating.
•Shift occurs quickly when accelerating
and engine speed does not increase.(See K2–194 NO.11 SHIFT
POINT IS HIGH OR LOW.)
12•Torque converter clutch (TCC)
non-operation•TCC does not operate when vehicle
reaches TCC operation range.(See K2–194 NO.12 TORQUE
CONVERTER CLUTCH (TCC)
NON-OPERATION.)
13•No kickdown•Does not downshift when accelerator
pedal fully depressed within kickdown
range.(See K2–195 NO.13 NO
KICKDOWN.)
14•Engine flares up or slips when
upshifting or downshifting•When accelerator pedal depressed for
driveway, engine speed increases but
vehicle speed increase slowly.
•When accelerator pedal depressed while
driving, engine speed increases but
vehicle speed does not increase.(See K2–195 NO.14 ENGINE
FLARES UP OR SLIPS WHEN
UPSHIFTING OR
DOWNSHIFTING.)
15•Engine flares up or slips when
accelerating vehicle•Engine flares up when accelerator pedal
depressed for upshifting.
•Engine flares up suddenly when
accelerator pedal depressed for
downshifting.(See K2–196 NO.15 ENGINE
FLARES UP OR SLIPS WHEN
ACCELERATING VEHICLE.)
16•Judder upon torque converter
clutch (TCC) operation•Vehicle jolts when TCC engaged. (See K2–196 NO.16 JUDDER
UPON TORQUE
CONVERTER CLUTCH (TCC)
OPERATION.)

K2–186
TROUBLESHOOTING
CAN signal
Vehicle dose not move in D range, or in R position
X
XXX X
X
X X
X
XX
X
X
X
X
X
XX
XX
XX
XXX
XX
XX
X
XXX X
XX X
XX X
XX X
XXX
XX
X
XX
X XX XX
X
XX
XX
X XX
X XXXX
XXXX
XXXXX XX XXX
X
X
XX
X
X
X
X
X
X
X
X
X
X X
X
X
X X
XXX
XX
XX X X
X 1
Excessive creep 4
No creep at all 5
Low maximum speed and poor acceleration 6
No shifting 7
Does not shift to fifth gear (5GR) 8
Abnormal shifting 9
Frequent shifting 10
Shift point is high or low 11
Torque converter clutch (TCC) non-operation 12
No kickdown 13
Engine flares up or slips when upshifting or downshifting 14
Engine flares up or slip when accelerating vehicle 15
Judder upon torque converter clutch (TCC) operation 16
Excessive shift shock from N to D or N to R position/range 17
Excessive shift shock on torque converter clutch (TCC) 19
No engine braking in 1GR position of M range 22
Transaxle overheats 23
Engine stalls when shifted to D range, or in R position 24
Engine stalls when driving at slow speeds or stopping 25
Starter does not work 26Excessive shift shock is given when upshifting and
downshifting 18
Noise occurs at idle when vehicle is stopped in all
positions/ranges 20
Noise occurs at idle when vehicle is stopped in D
range, or in R position 21
Gear position indicator light illuminates in D range or P, N,
R positions 28Gear position indicator light does not illuminate in M range
Electrical system components
ATX inner parts
ATX outer parts
Hydraulic system
components
Control valve body 27
Does not shift up in M range
29
Does not shift down in M rangeSymptom item
Cause of trouble
Open/short
Malfunction signal is inputed Signal is inputed
Open/short
Open/short Open/short
Open/short
Open/short
Open/short
Open/short
Open/short Open/short
Open/short
Open/short Open/short
Control valve spool is not operating properly ATF amount
2-4 brake accumulator is not operating properly Low clutch solenoid accumulator is not operating properly
Direct clutch accumulator is not operating properly High clutch accumulator is not operating properly2-4 brake solenoid valve Pressure control solenoid
TCC solenoid valve
High clutch solenoid valve TFT sensor N-D select
Transaxle range switch
Power supply, GND
Shift solenoid A
Shift solenoid B
Shift solenoid C
Neutral shift solenoid valve
Reducation timing solenoid
GND return line
30Vehicle moves in N position 2
Vehicle moves in P position, or parking gear does not
disengage when P is disengaged 3
A6E5780W002

TROUBLESHOOTING
K2–187
K2
End Of Sie
Vehicle dose not move in D range, or in R position
X
X
X
XXX X
XX X
XX X
XX X XX
X
X
X X XX
XX
X XXXXXXXXX
XXX
X
X
X X
XX XXX
X
X
XX X
X
X
X X
X
X
X X
XX
X XXX X XXX
XX X 1
Excessive creep 4
No creep at all 5
Low maximum speed and poor acceleration 6
No shifting 7
Does not shift to fifth gear (5GR) 8
Abnormal shifting 9
Frequent shifting 10
Shift point is high or low 11
Torque converter clutch (TCC) non-operation 12
No kickdown 13
Engine flares up or slips when upshifting or downshifting 14
Engine flares up or slip when accelerating vehicle 15
Judder upon torque converter clutch (TCC) operation 16
Excessive shift shock from N to D or N to R position/range 17
Excessive shift shock on torque converter clutch (TCC) 19
No engine braking in 1GR position of M range 22
Transaxle overheats 23
Engine stalls when shifted to D range, or in R position 24
Engine stalls when driving at slow speeds or stopping 25
Starter does not work 26Excessive shift shock is given when upshifting and
downshifting 18
Noise occurs at idle when vehicle is stopped in all
positions/ranges 20
Noise occurs at idle when vehicle is stopped in D
range, or in R position 21
Gear position indicator light illuminates in D range or P, N,
R positions 28Gear position indicator light does not illuminate in M range
Hydraulic system
components
Control valve bodyPowertrain 27
Does not shift up in M range
29
Does not shift down in M range
Symptom item
Cause of trouble
Reduction accumulator is not operating properly
Clogging
Clogging
Clogging
Clogging
Clogging
Clogging
Clogging Clogging
Clogging
Slipping (clutch, brake) Oil cooler is not operating properly
Torque converter is not operating properly Burned (clutch, brake)
TCC piston is not operating properly TCC piston is cracking or peeling2-4 brake solenoid valve hydraulic circuit Pressure control solenoid hydraulic circuit
TCC solenoid valve hydraulic circuit
High clutch solenoid valve hydraulic circuit
Shift solenoid A hydraulic circuit
Shift solenoid B hydraulic circuit
Shift solenoid C hydraulic circuit
Neutral shift solenoid valve
Reducation timing solenoid valve
30Vehicle moves in N position 2
Vehicle moves in P position, or parking gear does not
disengage when P is disengaged 3
A6E5780W003

K2–188
TROUBLESHOOTING
NO.1 VEHICLE DOES NOT MOVE IN D RANGE, OR IN R POSITIONA6E578001030204
Diagnostic procedure
End Of SieNO.2 VEHICLE MOVES IN N POSITIONA6E578001030205
1 Vehicle does not move in D range, or in R position
DESCRIPTION•Vehicle does not move when accelerator pedal depressed.
POSSIBLE
CAUSE•If vehicle does not move in D range or R position, basically, malfunction is in ATX. (Vehicle will move
even with a malfunction in TCM.) Since a malfunction in sensor circuit or output circuit is cause of
malfunction in ATX, inspect sensors, output circuit, and related harnesses.
—Clutch slipped, worn (D range-Low clutch, Low one-way clutch, Reduction one-way clutch, R
position-Reverse clutch, Low and reverse brake, Reduction brake)
•Line pressure low
•Malfunction of shift solenoid A, B, or C
•Malfunction of sensor ground
•Malfunction of body ground
•Malfunction of control valve body
—Malfunction of selector lever
—Parking mechanism not properly operated
—Malfunction of torque converter
Note
•Before following troubleshooting steps, make sure that Automatic Transaxle On-Board Diagnostic
and Automatic Transaxle Basic Inspection are conducted.
STEP INSPECTION ACTION
1•With vehicle stopped on a flat, paved road
and engine off, does vehicle move when
pushed? (in D ranges or N, R positions and
brake released)Yes Go to next step.
No Inspect for parking mechanism.
(See ATX Workshop Manual.)
2•Start engine.
•Does vehicle move when selector lever in
between N position and D range?Yes Inspect or adjust selector lever.
(See K2–117 SELECTOR LEVER INSPECTION.)
(See K2–118 SELECTOR CABLE ADJUSTMENT.)
No Go to next step.
3•Stop engine.
•Inspect pressure control solenoid circuit.
•Is it okay?Yes•Overhaul control valve body and repair or replace any
defective parts.
(See ATX Workshop Manual.)
—If problem remains, replace or overhaul transaxle and
repair or replace any defective parts.
(See K2–99 AUTOMATIC TRANSAXLE AND
TRANSFER REMOVAL/INSTALLATION.)
(See ATX workshop Manual.)
No•Inspect for pressure control solenoid mechanical stuck.
(See K2–88 SOLENOID VALVE INSPECTION.)
—If pressure control solenoid okay, inspect for open or
short circuit between TCM connector terminal 2Y and
pressure control solenoid connector terminal D.
4•Verify test results.
—If okay, return to diagnostic index to service any additional symptoms.
—If malfunction remains, inspect related Service Informations and perform repair or diagnosis.
—If vehicle repaired, troubleshooting completed.
—If vehicle not repaired or additional diagnostic information not available, replace TCM.
2 Vehicle moves in N position
DESCRIPTION•Vehicle creeps in N position.
•Vehicle creeps if brake pedal not depressed in N position.
POSSIBLE
CAUSE•If vehicle moves in N position, basically, malfunction is in ATX. Since a malfunction in sensor circuit or
output circuit is cause of malfunction in ATX, inspect sensors, output circuit, and related harnesses.
—Clutch burned (Low clutch, Low one-way clutch, Low and reverse brake)
•Line pressure low
•Malfunction of control valve body
—Selector lever position disparity (Although the selector indicator shows N position, hydraulic circuit
shows D range or R position)
Note
•Before following troubleshooting steps, make sure that Automatic Transaxle On-Board Diagnostic
and Automatic Transaxle Basic Inspection are conducted.

L–4
PROPELLER SHAFT
PROPELLER SHAFT INSPECTION ON VEHICLEA6E611025002204Joint Play Inspection
1. Move the joint shaft by hand, and verify that there is no play.
If there is play, perform the following service operations.
•Yoke : Universal joint replacement (See L–7 PROPELLER SHAFT DISASSEMBLY/ASSEMBLY.)
•Constant velocity joint : Propeller shaft
replacement (See L–7 PROPELLER SHAFT
DISASSEMBLY/ASSEMBLY.)
Propeller Shaft Runout Inspection
Caution
•Do not rotate the propeller shaft by starting the engine.
1. Shift the select lever to N position and release the parking brake.
2. Rotate the rear wheel by hand, and measure the
propeller shaft runout at 9 points as shown in the
figure.
Limit
0.4 mm {0.02 in}
PROPELLER SHAFT
A6J6110W002
A6J6110W003
A6J6110W004