2002 MAZDA 6 brake

K2–90
AUTOMATIC TRANSAXLE
SOLENOID VALVE REMOVAL/INSTALLATIONA6E5714212802031. Remove the control valve body. (See K2–105 CONTROL VALVE BODY REMOVAL/INSTALLATION.)
2. Remove the solenoid valves and manual valve.
.
3. Apply ATF to a new O-ring and install it on the solenoid valve.
4. Install the solenoid valve and manual valve in the control valve body.
Tightening torque
8.34—10.30 N·m
{85.0—105.0 kgf·cm, 73.78—91.13 in·lbf}
5. Install the control valve body. (See K2–105 CONTROL VALVE BODY REMOVAL/INSTALLATION.)
6. Add the ATF while the engine is idling, and inspect the ATF level and leakage. (See K2–80 AUTOMATIC
TRANSAXLE FLUID (ATF) REPLACEMENT.) (See K2–79 Automatic Transaxle Fluid (ATF) Level Inspection.)
7. Carry out the time lag test and line pressure test. (See K2–72 MECHANICAL SYSTEM TEST.)
8. Carry out the road test. (See K2–75 ROAD TEST.)
End Of Sie
TCM INSPECTIONA6E571418901211Terminal Voltage Table (Reference)
Note
•Use the ground of terminal 1C and 1Y of the TCM when measuring terminal voltage, as an error may
occur when connecting the negative circuit tester to ground.
5
44
3
10
687
9
1
2
A6E5714W122
1 Manual valve
2 2-4 brake solenoid valve
3 Neutral shift solenoid valve
4 TCC solenoid valve
5 Shift solenoid C6 Shift solenoid B
7 Reduction timing solenoid valve
8 Shift solenoid A
9 Pressure control solenoid
10 High clutch solenoid valve

K2–92
AUTOMATIC TRANSAXLE
1P Back-up power
supplyBattery Constant B+•Inspect battery
(See G–6 BATTERY
INSPECTION)
•Inspect related harness
1Q———— —
1S Down switch Down switch Down shift at M
range0•Inspect selector lever
component
(See K2–117
SELECTOR LEVER
COMPONENT
INSPECTION) Other B+
1T TR switch
(N position)TR switch N position B+•Inspect TR switch
(See K2–80
TRANSAXLE RANGE
(TR) SWITCH
INSPECTION)
•Inspect related harness Other positions, all
ranges0
1U Brake switch Brake switch Brake pedal
depressedB+•Inspect Brake switch
(See Section P.)
•Inspect related harness
Brake pedal
released0
1V VSS
(GND)VSS Constant Below 1.0•Inspect related harness
1W TR switch
(R range)TR switch R range B+•Inspect TR switch
(See K2–80
TRANSAXLE RANGE
(TR) SWITCH
INSPECTION)
•Inspect related harness Other ranges, all
positions0
1X Intermediate sensor
(GND)Intermediate sensor Constant Below 1.0•Inspect Intermediate
sensor
(See K2–86
INTERMEDIATE
SENSOR INSPECTION)
•Inspect related harness
1Y GND GND Constant Below 1.0•Inspect related harness
1Z TR switch
(D range)TR switch D range B+•Inspect TR switch
(See K2–80
TRANSAXLE RANGE
(TR) SWITCH
INSPECTION)
•Inspect related harness Other ranges, all
positions0
1AA M range switch M range switch M range 0•Inspect selector lever
component
(See K2–117
SELECTOR LEVER
COMPONENT
INSPECTION) Other B+
2A———— —
2B TR switch
(P position)TR switch P position B+•Inspect TR switch
(See K2–80
TRANSAXLE RANGE
(TR) SWITCH
INSPECTION)
•Inspect related harness Other positions, all
ranges0
2C Up switch Up switch Up shift at M range 0•Inspect selector lever
component
(See K2–117
SELECTOR LEVER
COMPONENT
INSPECTION) Other B+
2D Neutral shift
solenoid valveNeutral shift
solenoid valveN position 0•Inspect neutral shift
solenoid valve
(See K2–88 SOLENOID
VALVE INSPECTION)
•Inspect related harness R position B+ Terminal Signal Connected to Test Condition Voltage (V) Action

AUTOMATIC TRANSAXLE
K2–93
K2
2E———— —
2F Input/turbine speed
sensor
(GND)Input/turbine speed
sensorConstant 0•Inspect Input/turbine
speed sensor
(See K2–85 INPUT/
TURBINE SPEED
SENSOR INSPECTION)
•Inspect related harness
2G Reduction timing
solenoid valveReduction timing
solenoid valveN position 0•Inspect reduction timing
solenoid valve
(See K2–88 SOLENOID
VALVE INSPECTION)
•Inspect related harness D range B+
2H———— —
2I———— —
2J CAN L PCM Because this
terminal is for serial
communication,
good/no good
judgment by
terminal voltage is
not possible. Carry
out inspection
according to DTCs.—•Inspect related harness
2K———— —
2M CAN H PCM Because this
terminal is for serial
communication,
good/no good
judgment by
terminal voltage is
not possible. Carry
out inspection
according to DTCs.—•Inspect related harness
2N———— —
2P GND return
(solenoid ground)Solenoid valve Constant Continuity•Inspect related harness
2Q———— —
2S TCC solenoid valve
controlTCC solenoid valve D range TCC ON
(60 km/h {37 mph}
or more)B+•Inspect TCC solenoid
valve
(See K2–88 SOLENOID
VALVE INSPECTION)
•Inspect related harness TCC released (M
range, 1GR—4GR)0
2T Shift solenoid B
controlShift solenoid B N position B+•Inspect shift solenoid B
(See K2–88 SOLENOID
VALVE INSPECTION)
•Inspect related harness D range, 4GR gear 0
2U High clutch
solenoid valveHigh clutch
solenoid valveN position 0•Inspect high clutch duty
solenoid valve
(See K2–88 SOLENOID
VALVE INSPECTION)
•Inspect related harness When shifting 1-2 in
D rangeB+
2V 2-4 Brake solenoid
valve2-4 Brake duty
solenoid valveN position B+•Inspect 2-4 Brake
solenoid valve
(See K2–88 SOLENOID
VALVE INSPECTION)
•Inspect related harness D position stall 0
2W Shift solenoid A Shift solenoid A N position B+•Inspect shift solenoid A
(See K2–88 SOLENOID
VALVE INSPECTION)
•Inspect related harness D range, 3GR gear 0
2X Shift solenoid C
controlShift solenoid C N position B+•Inspect shift solenoid C
(See K2–88 SOLENOID
VALVE INSPECTION)
•Inspect related harness D range 0 Terminal Signal Connected to Test Condition Voltage (V) Action

AUTOMATIC TRANSAXLE
K2–95
K2
Pressure control solenoid signal
•TCM terminal: 2Y (+)—2P (–)
•Oscilloscope setting: 5 V/DIV (Y) 5 ms/DIV (X)
•Measuring condition: Idle after warm-up
2-4 brake solenoid valve signal
•TCM terminal: 2V (+)—2P (–)
•Oscilloscope setting: 5 V/DIV (Y) 5 ms/DIV (X)
•Measuring condition: Idle after warm-up
High clutch solenoid valve signal
•TCM terminal: 2U (+)—2P (–)
•Oscilloscope setting: 5 V/DIV (Y) 5 ms/DIV (X)
•Measuring condition: Idle after warm-up
TCC solenoid valve signal (lock up off)
•TCM terminal: 2S (+)—2P (–)
•Oscilloscope setting: 5 V/DIV (Y) 5 ms/DIV (X)
•Measuring condition: Idle after warm-up
AMU0517W060
AMU0517W060
AMU0517W060
AMU0517W058

AUTOMATIC TRANSAXLE SHIFT MECHANISM
K2–117
K2
SELECTOR LEVER INSPECTIONA6E5716461022011. Turn the ignition switch to the ON position (engine off).
2. With the brake pedal depressed, verify that a “click” sound is heard at each range when shifted in the pattern
shown.
3. Verify that the selector lever can only be shifted
as shown.
4. Verify that the position of the selector lever and
the selector indicator light correspond.
•If not as specified, adjust the TR switch. (See
K2–83 TRANSAXLE RANGE (TR) SWITCH
ADJUSTMENT.)
5. Verify that the vehicle operates in each selected
range.
End Of SieSELECTOR LEVER COMPONENT INSPECTIONA6E5716461022041. Disconnect the negative battery cable.
2. Remove the console.
3. Remove the dashboard completely. (See section S.)
4. Disconnect the selector lever component connector.
5. Inspect for continuity at the selector lever
component.
•If not as specified, adjust the selector cable.
(See K2–118 SELECTOR CABLE
ADJUSTMENT.)
End Of Sie
AUTOMATIC TRANSAXLE SHIFT MECHANISM
P
R
N
DM
P
R
N
DM
OPERATION WHEN
BRAKE PEDAL IS
DEPRESSED
OPERATION WHEN
BRAKE PEDAL IS
RELEASED
A6E5716W101
SELECTOR LEVER COMPONENT
PART SIDE CONNECTOR
A6A5616W013
A6A5616W012

K2–124
ON-BOARD DIAGNOSTIC
AFTER REPAIR PROCEDUREA6E577018901203
Caution
•After repairing a malfunction, perform this procedure to verify that the malfunction has been
corrected.
•When this procedure is carried out, be sure to drive the vehicle at lawful speed and pay attention
to the other vehicles.
1. Connect the SST (WDS or equivalent) to the DLC-2.
2. Turn the ignition key to ON (engine OFF).
3. Select the clear code function and clear the DTC.
4. Perform the following trouble code inspections to ensure that the DTC has been resolved:
•For P0705
i. Start the engine.
ii. Warm up the engine to normal operating temperature.
iii. Depress the brake pedal, and shift the selector lever between P to D for 5 seconds or more.
iv. Go to Step 5.
•For P0706
i. Start the engine.
ii. Warm up the engine to normal operating temperature.
iii. Depress the brake pedal, and shift the selector lever between P to D for 100 seconds or more.
iv. Go to Step 5.
•For P0711
i. Decrease ATF temperature to 20 °C {68 °F} or below.
ii. Start the engine.
iii. Drive the vehicle in D range for 10 minutes or more.
iv. Go to Step 5
•For P0712
i. Start the engine.
ii. Warm up the engine to normal operating temperature.
iii. Drive the vehicle in D range for 20 seconds or more.
iv. Go to Step 5.
•For P0713
i. Start the engine.
ii. Warm up the engine to normal operating temperature.
iii. Drive the vehicle in D range at 20 km/h {12mph} or above for 300 seconds or more.
iv. Go to Step 5.
•For P0715; P0791
i. Start the engine.
ii. Drive the vehicle under the following conditions for 2 seconds or more.
—Vehicle speed (VSS PID): 40 km/h {25 mph} or above
—Engine speed (RPM PID): 1,500 rpm or above.
—Selector lever position: D range
iii. Repeat Step ii again.
iv. Turn the IG switch to OFF.
v. Start the engine.
vi. Drive vehicle under the following conditions for 2 second or more.
—Vehicle speed (VSS PID): 40 km/h {25 mph} or above
—Engine speed (RPM PID): 1,500 rpm or above.
—Selector lever position: D range
vii. Go to Step 5.
•For P0720
i. Start the engine.
ii. Warm up the engine and ATX.
iii. Drive vehicle under the following conditions for 2 seconds or more.
—Selector lever position: D range
—Vehicle speed (VSS PID): 40 km/h {25 mph}
—Engine speed (RPM PID): 1,500 rpm or above.
iv. Go to Step 5.

K2–126
ON-BOARD DIAGNOSTIC
DTC TABLEA6E577018901204
* : Indicates the applicable item in On-Board System Readiness Test defined by CARB.
End Of Sie
DTC No. Condition MILAT
warning
lightDC*Monitor
itemMemory
functionPage
P0705Transaxle range (TR) switch circuit malfunction
(power short circuit)XX2CCM X(See K2–127
DTC P0705)
P0706Transaxle range (TR) switch circuit malfunction
(Open/ground short circuit)XX2CCM X(See K2–129
DTC P0706)
P0711Transaxle fluid temperature (TFT) sensor
malfunction (Stuck)XNO2CCM X(See K2–132
DTC P0711)
P0712Transaxle fluid temperature (TFT) sensor circuit
malfunction (short circuit)XX2CCM X(See K2–133
DTC P0712)
P0713Transaxle fluid temperature (TFT) sensor circuit
malfunction (open circuit)XX2CCM X(See K2–135
DTC P0713)
P0715 Input/turbine speed sensor circuit malfunction X X 2 CCM X(See K2–137
DTC P0715)
P0720Vehicle speedometer sensor (VSS) circuit
malfunctionXX2CCM X(See K2–139
DTC P0720)
P0740Torque converter clutch (TCC) system
malfunctionX–2CCM X(See K2–142
DTC P0740)
P0743Torque converter clutch (TCC) solenoid valve
circuit malfunctionXX1CCM X(See K2–144
DTC P0743)
P0748 Pressure control solenoid circuit malfunction–X–CCM X(See K2–146
DTC P0748)
P0751 Shift solenoid A malfunction (stuck off) X–2CCM X(See K2–149
DTC P0751)
P0752 Shift solenoid A malfunction (stuck on) X–2CCM X(See K2–150
DTC P0752)
P0753 Shift solenoid A circuit malfunction (open/short) X X 1 CCM X(See K2–151
DTC P0753)
P0756 Shift solenoid B malfunction (stuck off) X–2CCM X(See K2–153
DTC P0756)
P0757 Shift solenoid B malfunction (stuck on) X–2CCM X(See K2–154
DTC P0757)
P0758 Shift solenoid B circuit malfunction (open/short) X X 1 CCM X(See K2–155
DTC P0758)
P0761 Shift solenoid C malfunction (stuck off) X–2CCM X(See K2–158
DTC P0761)
P0762 Shift solenoid C malfunction (stuck on) X–2CCM X(See K2–159
DTC P0762)
P0763 Shift solenoid C circuit malfunction (open/short) X X 1 CCM X(See K2–160
DTC P0763)
P0768Reduction timing solenoid valve circuit
malfunction (open/short)–X–CCM X(See K2–163
DTC P0768)
P0773Neutral shift solenoid valve circuit malfunction
(open/short)–X–CCM X(See K2–166
DTC P0773)
P07782-4 brake solenoid valve circuit malfunction
(open/short)–X–CCM X(See K2–169
DTC P0778)
P0791Intermediate sensor circuit malfunction (open/
short)XX2CCM X(See K2–172
DTC P0791)
P0798High clutch solenoid valve circuit malfunction
(open/short)–X–CCM X(See K2–175
DTC P0798)
P1710 GND return circuit malfunction–––Other X(See K2–178
DTC P1710)
U0073 CAN BUS OFF (See T–41 DTC TABLE)
U0100 TCM cannot receive any signals from PCM (See T–41 DTC TABLE)

ON-BOARD DIAGNOSTIC
K2–169
K2
DTC P0778A6E577018901226
DTC P0778 2-4 brake solenoid valve circuit malfunction (open/short)
DETECTION
CONDITION•Open or short in 2-4 brake solenoid signal system (while TCM monitors solenoid output voltage, the
voltage that differs from the ON/OFF signal output by CPU in TCM is detected).
Diagnostic support note:
•This is continuous monitor (CCM).
•MIL does not illuminates.
•PENDING CODE is not available.
•FREEZE FRAME DATA is not available.
•AT warning light indication.
•DTC is stored in TCM memory.
POSSIBLE
CAUSE•Open circuit between 2-4 brake solenoid valve terminal A and TCM terminal 2V
•Short to ground between 2-4 brake solenoid valve terminal A and TCM terminal 2V
•Short to power between 2-4 brake solenoid valve terminal A and TCM terminal 2V
•2-4 brake solenoid valve malfunction
•Damaged connector between 2-4 brake solenoid valve and TCM
•TCM malfunction
CPU
CPU2V
A
D
A
A J 2PB TCM
AT X
TCM
HARNESS SIDE CONNECTORTERMINAL COMPONENT
NO.1(12-PIN)
HARNESS SIDE CONNECTOR
COUPLER COMPONENT
(10-PIN)
PART SIDE CONNECTOR2-4 BRAKE
SOLENOID VALVE
2-4 BRAKE
SOLENOID VALVE
HARNESS SIDE CONNECTOR