2002 MAZDA 6 lock

K2–120
AUTOMATIC TRANSAXLE SHIFT MECHANISM
Selector Cable Removal Note
1. Remove the spring.
2. Remove the selector cable.
Selector Cable Installation Note
1. Install the selector cable to the selector lever certainly.
2. Install the selector cable to the bracket certainly.
Note
•Step 3, 4 is for the selector cable
replacement only.
3. Verify that the selector lever is in P position.
4. Lock the lock piece of the selector cable (selector
lever side) in the order shown in the figure.
5. Verify that the manual shaft is in P position.
SPRING SELECTOR CABLE
A6E5716W105
SELECTOR CABLE
A6E5616W020
2
1
SAFETY
LOCK
LOCK PIECE
A6E5716W103
DO NOT BEND
A6E5616W007

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.)

TROUBLESHOOTING
K2–189
K2
Diagnostic procedure
End Of SieNO.3 VEHICLE MOVES IN P POSITION, OR PARKING GEAR DOES NOT DISENGAGE WHEN P IS
DISENGAGED
A6E578001030206
End Of SieNO.4 EXCESSIVE CREEPA6E578001030207
End Of SieNO.5 NO CREEP AT ALLA6E578001030208
STEP INSPECTION ACTION
1•Does vehicle creep when selector lever
moved slightly in N position?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 and adjust selector lever.
(See K2–117 SELECTOR LEVER INSPECTION.)
(See K2–118 SELECTOR CABLE ADJUSTMENT.)
2•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.
3 Vehicle moves in P position, or parking gear does not disengage when P is disengaged
DESCRIPTION•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.
POSSIBLE
CAUSE•Malfunction of parking mechanism (May have effect on noise or shock from transaxle)
•Improper adjustment of selector lever
•If vehicle moves in N position, perform symptom troubleshooting No.2 “Vehicle moves in N position”
Note
•Before following troubleshooting steps, make sure that Automatic Transaxle On-Board Diagnostic
and Automatic Transaxle Basic Inspection are conducted.
4 Excessive creep
DESCRIPTION•Vehicle accelerates in D range, and R position without depressing accelerator pedal.
POSSIBLE
CAUSE•Engine idle speed high (transaxle system is not cause of problem)
•Go to symptom troubleshooting No.9 “Fast idle/runs on”
(See Section F.)
Note
•Before following troubleshooting steps, make sure that Automatic Transaxle On-Board Diagnostic
and Automatic Transaxle Basic Inspection are conducted.
5 No creep at all
DESCRIPTION•Vehicle does not move in D range, or R position when idling on flat paved road.
POSSIBLE
CAUSE•Either engine output low or there is clutch circuit slippage.
—Clutch burned
•Line pressure low
•Malfunction of shift solenoid A, B, or C
•Malfunction of body ground
•Malfunction of control valve body
—Transaxle fixed in 4GR (Operation of fail-safe function)
•Short or open circuit in wiring
•Poor connection of connector
•Electronic parts of output and input system malfunctioning
—Engine torque is not start
•Malfunction of torque converter
Note
•Before following troubleshooting steps, make sure that Automatic Transaxle On-Board Diagnostic
and Automatic Transaxle Basic Inspection are conducted.

L–8
PROPELLER SHAFT
.
SST
SST
SST
SST
SST
SST
R
SST
RR
R
R
R
R
R
R
SST
R
11
11
10
10
9
9
7
5
3
3
11
2
2
12
12
13
6
8
87157—177
{16.1—18.0,
116—130}
N·m {kgf·m, ft·lbf} 157—177
{16.1—18.0,
116—130}
R
R
3
1
2
4
R
A6E6110W003
1 Snap ring
(See L–9 Snap Ring Disassembly Note)
(See L–12 Bearing Cup and Snap Ring Assembly
Note)
2 Bearing cup
(See L–9 Bearing Cup Disassembly Note)
(See L–12 Bearing Cup and Snap Ring Assembly
Note)
3Spider
4 Flange yoke
5 Rear propeller shaft
6 Front propeller shaft
7 Locknut
(See L–9 Locknut Disassembly Note)
(See L–12 Locknut Assembly Note)
8 Spring washer9 Center yoke
(See L–10 Center Yoke Disassembly Note)
10 Bearing support
(See L–10 Bearing support Disassembly Note)
(See L–11 Bearing Support Assembly Note)
11 Dust cover
(See L–10 Dust Cover and Bearing Disassembly
Note)
(See L–11 Dust Cover Assembly Note)
12 Bearing
(See L–10 Dust Cover and Bearing Disassembly
Note)
(See L–11 Bearing Assembly Note)
13 Center propeller shaft

PROPELLER SHAFT
L–9
L
Snap Ring Disassembly Note
1. Mark the yoke and flont propeller shaft or york
and rear propeller shaft for proper reassembly.
2. Clamp the propeller shaft in a vise.
3. Remove the snap ring using a screwdriver.
Bearing Cup Disassembly Note
1. Use a copper hammer to loosen the propeller
shaft bearing cup, then remove the bearing cup.
2. Remove the opposite bearing cup in the same
manner.
3. Separate the propeller shaft and yoke.
4. Clamp the yoke in a vise.
5. Remove the bearing cups and the spider from the
yoke as in Step 1 and 2.
Locknut Disassembly Note
1. Mark the center yoke and center propeller shaft
for proper reassembly.
2. Clamp the center yoke in a vice.
3. Remove the locknut and spring washer.
MARK
A6E6110W004
YTA6110W107
YTA6110W108
MARK
A6E6110W005

L–12
PROPELLER SHAFT
Locknut Assembly Note
1. Align the mark on the center yoke and shaft, and
install the center yoke.
Tightening torque
137—177 N·m
{16.1—18.0 kgf·m, 116—130 ft·lbf}
Bearing Cup and Snap Ring Assembly Note
1. Apply the grease to the bearing rollers inside the
bearing cups.
2. Set the new spider to the yoke, and assemble the
new bearing cup as the snap ring groove comes
out.
3. Assemble the opposite bearing cup in the same.
4. Insert the bearing cup to the yoke as the snap
ring groove width of bearing cup widens most and
both grooves width are same.
Caution
•Use a snap ring that thickness is same
for both sides.
MARK
A6E6110W005
GREASEGREASE
GREASEGREASE
A6J6110W016
A6E6110W010
BEARING CUPSPIDER
YOKE
A6E6110W011

ELECTRONIC 4WD CONTROL SYSTEM
M–13
M
4WD CONTROL MODUREA6E632227100205Function
•The 4WD control modure (4WD CM) calculates the optimal amount of torque distribution for the rear wheels
and outputs a corresponding electric current to the electronic control coupling (4WD solenoid). This calculation
is based on the throttle angle, four-wheel speed, engine speed, selector lever position, and other related input
signals, matched with the vehicle driving and road surface conditions.
Functions
Construction
•The 4WD CM is installed to the left of the brake pedal (clutch pedal position).
Block diagram
.
Function name Contents
4WD system control
function•Based on each input signal, the electronic control current sent to the electronic control coupling
(4WD solenoid) is optimally controlled.
Diagnostic system•If the self-diagnostic system detects a malfunction, the 4WD warning light illuminates to alert
the driver, and at the same time the system suspends control or performs other measures to
prevent a loss of driving stability and protect the system.
•The detected malfunction is stored as a DTC in the 4WD CM.
987
5
43
10
19
18
17
15
16
14
131112
6
1
2
A6E63222008
1Front
2PCM
3TCM
4 DSC HU/CM
5 4WD control modure (4WD CM)
6 4WD solenoid
7Transaxle
8Transfer
9 Propeller shaft
10 Front drive shaft11 Pilot clutch/pilot cam
12 Ball/main cam
13 Main clutch
14 Electronic control coupling
15 Rear differential
16 Rear drive shaft
17 Torque transmission path
18 Electric signal path
19 Solenoid activation

M–14
ELECTRONIC 4WD CONTROL SYSTEM
End Of Sie4WD SYSTEM CONTROLA6E632227100206Outline
Features
•Based on the inputted signals listed below, the 4WD CM calculates the optimal amount of torque distribution for
the rear wheels and outputs a corresponding electric control current to the electronic control coupling (4WD
solenoid).
•The module controls the current outputted to the 4WD solenoid by changing the rate of the ON/OFF timing.
Construction
Block diagram
.
Signal output part Signal name Note
PCMThrottle opening angle
Engine speed
Transmitted as a CAN signal TCMSelector lever position
Gear position
DSC HU/CMFour-wheel speed
DSC operating condition
Coupling torque request (DSC equipped vehicles)
Differential oil temperature
sensorRear differential oil temperature—
9
87
5
4
310
1413
11
12
61
2
A6E63222009
1PCM
2TCM
3 DSC HU/CM
4 Differential oil temperature sensor
5 Throttle opening angle
6 Engine speed
7 Selector lever position8 Gear position
9 Four-wheel speed
10 DSC operating condition
11 Coupling torque request (DSC equipped vehicles)
12 Rear differential oil temperature
13 4WD control modure (4WD CM)
14 Electronic control coupling (4WD solenoid)