TM-6
Fail-safe .................................................................258
Protection Control ..................................................261
DTC Inspection Priority Chart ................................262
DTC Index .............................................................263
WIRING DIAGRAM ....................................265
CVT CONTROL SYSTEM ............................... .265
Wiring diagram .................................................... ..265
CVT SHIFT LOCK SYSTEM ........................... .275
Wiring Diagram .................................................... ..275
BASIC INSPECTION ..................................279
DIAGNOSIS AND REPAIR WORK FLOW ..... .279
Work Flow ............................................................ ..279
Diagnostic Work Sheet ..........................................280
ADDITIONAL SERVICE WHEN REPLACING
TCM ................................................................. .
282
Description ........................................................... ..282
Work Procedure .....................................................282
ADDITIONAL SERVICE WHEN REPLACING
TRANSAXLE ASSEMBLY ............................. .
283
Description ........................................................... ..283
Work Procedure .....................................................283
CVT FLUID .......................................................285
Replacement ....................................................... ..285
Adjustment .............................................................286
STALL TEST ....................................................288
Work Procedure ................................................... ..288
CVT POSITION ................................................289
Inspection ............................................................ ..289
Adjustment .............................................................289
DTC/CIRCUIT DIAGNOSIS ...................... ..290
U0073 COMMUNICATION BUS A OFF ......... .290
DTC Logic ............................................................ ..290
Diagnosis Procedure .............................................290
U0100 LOST COMMUNICATION (ECM A) .....291
DTC Logic ............................................................ ..291
Diagnosis Procedure .............................................291
U0140 LOST COMMUNICATION (BCM) ........292
DTC Logic ............................................................ ..292
Diagnosis Procedure .............................................292
U0141 LOST COMMUNICATION (BCM A) .....293
DTC Logic ............................................................ ..293
Diagnosis Procedure .............................................293
U0155 LOST COMMUNICATION (IPC) ..........294
DTC Logic ............................................................ ..294
Diagnosis Procedure .............................................294
U0300 CAN COMMUNICATION DATA ...........295
DTC Logic ............................................................ .295
Diagnosis Procedure .............................................295
U1000 CAN COMM CIRCUIT ...........................296
Description ........................................................... .296
DTC Logic .............................................................296
Diagnosis Procedure .............................................296
U1117 LOST COMMUNICATION (ABS) ..........297
DTC Logic ............................................................ .297
Diagnosis Procedure .............................................297
P062F EEPROM ...............................................298
Description ........................................................... .298
DTC Logic .............................................................298
Diagnosis Procedure .............................................298
P0705 TRANSMISSION RANGE SENSOR A ..299
DTC Logic ............................................................ .299
Diagnosis Procedure .............................................299
Component Inspection ..........................................303
P0706 TRANSMISSION RANGE SENSOR A ..305
DTC Logic ............................................................ .305
Diagnosis Procedure .............................................305
Component Inspection ..........................................307
P0711 TRANSMISSION FLUID TEMPERA-
TURE SENSOR A ........................................... ..
308
DTC Logic ............................................................ .308
Diagnosis Procedure .............................................309
P0712 TRANSMISSION FLUID TEMPERA-
TURE SENSOR A ........................................... ..
312
DTC Logic ............................................................ .312
Diagnosis Procedure .............................................312
Component Inspection ..........................................312
P0713 TRANSMISSION FLUID TEMPERA-
TURE SENSOR A ........................................... ..
314
DTC Logic ............................................................ .314
Diagnosis Procedure .............................................314
Component Inspection ..........................................315
P0715 INPUT SPEED SENSOR A ...................316
DTC Logic ............................................................ .316
Diagnosis Procedure .............................................317
P0717 INPUT SPEED SENSOR A ...................319
DTC Logic ............................................................ .319
Diagnosis Procedure .............................................320
P0740 TORQUE CONVERTER ........................322
DTC Logic ............................................................ .322
Diagnosis Procedure .............................................323
P0743 TORQUE CONVERTER ........................324
DTC Logic ............................................................ .324
Diagnosis Procedure .............................................325
P0744 TORQUE CONVERTER ........................326
DTC Logic ............................................................ .326
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TM-7
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Diagnosis Procedure ...........................................
..
327
P0746 PRESSURE CONTROL SOLENOID A ..328
DTC Logic ........................................................... ..328
Diagnosis Procedure .............................................329
P0776 PRESSURE CONTROL SOLENOID B ..330
DTC Logic ........................................................... ..330
Diagnosis Procedure .............................................331
P0778 PRESSURE CONTROL SOLENOID B ..332
DTC Logic ........................................................... ..332
Diagnosis Procedure .............................................332
P0779 PRESSURE CONTROL SOLENOID B ..334
DTC Logic ........................................................... ..334
Diagnosis Procedure .............................................334
P0841 TRANSMISSION FLUID PRESSURE
SEN/SW A ...................................................... ..
336
DTC Logic ........................................................... ..336
Diagnosis Procedure .............................................336
P0847 TRANSMISSION FLUID PRESSURE
SEN/SW B ...................................................... ..
337
DTC Logic ........................................................... ..337
Diagnosis Procedure .............................................337
P0848 TRANSMISSION FLUID PRESSURE
SEN/SW B ...................................................... ..
339
DTC Logic ........................................................... ..339
Diagnosis Procedure .............................................339
P084C TRANSMISSION FLUID PRESSURE
SEN/SW H ...................................................... ..
341
DTC Logic ........................................................... ..341
Diagnosis Procedure .............................................341
P084D TRANSMISSION FLUID PRESSURE
SEN/SW H ...................................................... ..
343
DTC Logic ........................................................... ..343
Diagnosis Procedure .............................................343
P0863 TCM COMMUNICATION ......................345
DTC Logic ........................................................... ..345
Diagnosis Procedure .............................................345
P0890 TCM .......................................................346
DTC Logic ........................................................... ..346
Diagnosis Procedure .............................................346
P0962 PRESSURE CONTROL SOLENOID A ..347
DTC Logic ........................................................... ..347
Diagnosis Procedure .............................................347
P0963 PRESSURE CONTROL SOLENOID A ..349
DTC Logic ........................................................... ..349
Diagnosis Procedure .............................................349
P0965 PRESSURE CONTROL SOLENOID B ..351
DTC Logic ........................................................... ..351
Diagnosis Procedure .............................................352
P0966 PRESSURE CONTROL SOLENOID B .353
DTC Logic ............................................................ ..353
Diagnosis Procedure .............................................353
P0967 PRESSURE CONTROL SOLENOID B .355
DTC Logic ............................................................ ..355
Diagnosis Procedure .............................................355
P2765 INPUT SPEED SENSOR B ..................357
DTC Logic ..............................................................357
Diagnosis Procedure .............................................358
P2813 SELECT SOLENOID ...........................360
DTC Logic ..............................................................360
Diagnosis Procedure .............................................361
P2814 SELECT SOLENOID ...........................362
DTC Logic ..............................................................362
Diagnosis Procedure .............................................362
P2815 SELECT SOLENOID ...........................364
DTC Logic ..............................................................364
Diagnosis Procedure .............................................364
MAIN POWER SUPPLY AND GROUND CIR-
CUIT ................................................................
366
Diagnosis Procedure ........................................... ..366
SHIFT POSITION INDICATOR CIRCUIT ........368
Component Parts Function Inspection ..................368
Diagnosis Procedure .............................................368
SHIFT LOCK SYSTEM ...................................369
Component Function Check ..................................369
Diagnosis Procedure .............................................369
Component Inspection (Shift Lock Solenoid) ........371
Component Inspection (Park Position Switch) ......371
Component Inspection (Stop Lamp Switch) ..........372
SYMPTOM DIAGNOSIS ............................373
CVT CONTROL SYSTEM ...............................373
Symptom Table ................................................... ..373
PERIODIC MAINTENANCE ......................377
CVT FLUID ......................................................377
Inspection ............................................................ ..377
REMOVAL AND INSTALLATION .............378
CVT SHIFT SELECTOR ..................................378
Exploded View ..................................................... ..378
Removal and Installation .......................................378
Inspection ..............................................................379
CONTROL CABLE ..........................................380
Exploded View .......................................................380
Removal and Installation .......................................380
Inspection and Adjustment ....................................381
PADDLE SHIFTER ..........................................382
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PRECAUTIONSTM-11
< PRECAUTION > [CVT: RE0F10D]
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On Board Diagnosis (OBD) System of CVT and EngineINFOID:0000000009463958
The TCM and ECM have an on board diagnostic system. It will light up the malfunction indicator lamp (MIL) to
warn the driver of a malfunction causing emission deterioration.
CAUTION:
• Be sure to turn the ignition switch OFF and di sconnect the battery cable from the negative terminal
before any repair or inspection work. The open/s hort circuit of related switches, sensors, solenoid
valves, etc. will cause the MIL to light up.
• Be sure to connect and lock the connectors secure ly after work. A loose (unlocked) connector will
cause the MIL to light up due to an open circuit. (Be sure the connector is free from water, grease,
dirt, bent terminals, etc.)
• Be sure to route and secure the harnesses properly after work. Interference of the harness with a
bracket, etc. may cause the MIL to light up due to a short circuit.
• Be sure to connect rubber tubes properly afte r work. A misconnected or disconnected rubber tube
may cause the MIL to light up due to a malfunction of the EGR system or fuel injection system, etc.
• Be sure to erase the unnecessary malfunction informa tion (repairs completed) from the TCM and
ECM before returning the vehicle to the customer.
Removal and Installation Proc edure for CVT Unit ConnectorINFOID:0000000009463959
REMOVAL
• Rotate bayonet ring (1) counterclockwise. Pull out CVT unit har-
ness connector (2) upward and remove it.
INSTALLATION
1. Align marking (A) on CVT unit harness connector terminal with
marking (B) on bayonet ring. Insert CVT unit harness connector.
2. Rotate bayonet ring clockwise.
3. Rotate bayonet ring clockwise until marking (A) on CVT unit har- ness connector terminal body is aligned with the slit (B) on bayo-
net ring as shown in the figure (correctly fitting condition).
CAUTION:
SCIA6685J
JPDIA0294ZZ
JPDIA0295ZZ
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TM-20
< SYSTEM DESCRIPTION >[CVT: RE0F10D]
COMPONENT PARTS
• The principle of the linear solenoid valve utilizes the fa
ct that the force pressing on the valve spool installed
inside the coil increases nearly in proportion to the current . This allows it to produce a fluid pressure that is
proportional to this pressing force.
• The N/L (normal low) type does not produce hydr aulic control when the coil is not energized.
CVT CONTROL SYSTEM : Line Pressure Solenoid ValveINFOID:0000000009463975
• The line pressure solenoid valve is installed to control valve.
• The line pressure solenoid valve controls the pressure regulator valve. For information about the pressure
regulator valve, refer to TM-27, "TRANSAXLE : Component Description"
.
• The line pressure solenoid valve uses the linear solenoid valve [N/H (normal high) type]. NOTE:
• The principle of the linear solenoid valve utilizes the fa ct that the force pressing on the valve spool installed
inside the coil increases nearly in proportion to the current . This allows it to produce a fluid pressure that is
proportional to this pressing force.
• The N/H (normal high) produces hydraulic control when the coil is not energized.
CVT CONTROL SYSTEM : Overdrive Control SwitchINFOID:0000000009463976
• The overdrive control switch is inst alled to the selector lever knob.
• If the overdrive control switch is pressed when the O/D OFF indicator lamp on the combination meter is not
lit, the status changes to overdrive OFF and the O/D OFF indicator lamp illuminates.
• If the overdrive control switch is pressed when the O/ D OFF indicator lamp on the combination meter is lit,
the overdrive OFF status is canceled and the O/D OFF indicator lamp turns off.
CVT CONTROL SYSTEM : O/D OFF Indicator LampINFOID:0000000009463977
• O/D OFF indicator lamp is positioned on the combination meter.
• The O/D OFF indicator lamp illuminates when the overdrive function is deactivated (O/D OFF).
• For checking the bulb, this lamp turns on for a cert ain period of time when the ignition switch turns ON,
andthen turns off.
CVT CONTROL SYSTEM : Sh ift Position IndicatorINFOID:0000000009463978
TCM transmits shift position signal to combination meter via CAN communication. The actual shift position is
displayed on combination meter according to the signal.
SHIFT LOCK SYSTEM
Condition (status) O/D OFF indicator lamp
Ignition switch OFF. OFF
Ignition switch ON. ON (Approx. 2 seconds)
Overdrive control switch is pressed when the selector lever is in
the D position and the O/D OFF indicator lamp is OFF (when sys-
tem is normal). ON
Overdrive control switch is pressed when the selector lever is in
the D position and the O/D OFF indicator lamp is ON. OFF
Selector lever is shifted from the D position to another position-
when the O/D OFF indicator lamp is ON. OFF
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COMPONENT PARTSTM-21
< SYSTEM DESCRIPTION > [CVT: RE0F10D]
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SHIFT LOCK SYSTEM : Co mponent Parts LocationINFOID:0000000009463979
COMPONENT DESCRIPTION
ALDIA0346ZZ
No. Component Function
1. Stop lamp switch • The stop lamp switch turns ON when the brake pedal is depressed.
• When the stop lamp switch turns ON, the shift lock solenoid is energized.
2. Shift lock solenoid It operates according to the signal from the stop lamp switch and moves the lock lever.
3. Park position switch It detects that the selector lever is in “P” position.
4. Shift lock release button Forcibly releases the shift lock when pressed.
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STRUCTURE AND OPERATIONTM-23
< SYSTEM DESCRIPTION > [CVT: RE0F10D]
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TRANSAXLE : Operation StatusINFOID:0000000009463981
× : Engaged or applied.
TRANSAXLE : Transaxle MechanismINFOID:0000000009463982
TORQUE CONVERTER (WITH LOCK-UP FUNCTION)
In the same way as a conventional A/T, the torque c onverter is a system that increases the engine torque and
transmits the torque to the transaxle. A symmetr ical 3-element, 1-stage, 2-phase type is used here.
OIL PUMP
Utilizes a vane-type oil pump that is driven by the engi ne through the oil pump drive chain in order to increase
efficiency of pump discharge volume in low-speed zone and optimize pump discharge volume in high-speed
zone. Discharged oil from oil pump is transmitted to contro l valve. It is used as the oil of primary and second-
ary pulley operation, the oil of clutch operation, and the lubricant for each part.
PLANETARY GEAR
• A planetary gear type of forward/reverse selector me chanism is installed between the torque converter and
primary pulley.
• The power from the torque converter is input via the i nput shaft, operating a wet multi-plate clutch by means
of hydraulic pressure to switch between forward and reverse driving.
Operation of Planetary gear
BELT & PULLEY
It is composed of a pair of pulleys (the groove width is changed freely in the axial direction) and the steel belt
(the steel plates are placed conti nuously and the belt is guided with the multilayer steel rings on both sides).
Selector lever
position Parking mech-
anism Forward
clutch Reverse brake Primary pulley Secondary
pulley Steel belt Final drive
P ×
R ×××××
N
D × ××××
DS × ××××
JSDIA2426GB
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STRUCTURE AND OPERATIONTM-27
< SYSTEM DESCRIPTION > [CVT: RE0F10D]
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TRANSAXLE : Component DescriptionINFOID:0000000009463984
FLUID COOLER & FLUID WARMER SYSTEM
Part name Function
Torque converter Increases engine torque and transmits it to the transaxle.
Oil pump Utilizes a vane-type oil pump that is driven by the engine through the oil pump drive chain in order to
increase efficiency of pump discharge volume in low-speed zone and optimize pump discharge volume
in high-speed zone. Discharged oil from oil pump is tr ansmitted to control valve. It is used as the oil of
primary and secondary pulley operation, the oil of clutch operation, and the lubricant for each part.
Forward clutch The forward clutch is wet and multiple plate type clutch that consists of clutch drum, piston, drive plate,
and driven plate. It is a clutch to move the vehicle forward by activating piston hydraulically, engaging
plates, and directly connecting sun gear and input shaft.
Reverse brake The reverse brake is a wet multiple-plate type brake that consists of transaxle case, piston, drive plate,
and driven plate. It is a brake to move the vehicle in reverse by activating piston hydraulically, engaging
plates, and fixing planetary gear.
Internal gear The internal gear is directly connected to forward clutch drum. It is a gear that moves the outer edge of
pinion planet of planet carrier. It transmits power to move the vehicle in reverse when the planet carrier
is fixed.
Planet carrier Composed of a carrier, pinion planet, and pinion shaft. This gear fixes and releases the planet carrier in
order to switch between forward and reverse driving.
Sun gear Sun gear is a set part with planet carrier and internal gear. It transmits transmitted force to primary fixed
sheave. It rotates in forward or reverse direction according to activation of either forward clutch or re-
verse brake.
Input shaft The input shaft is directly connected to forward clutch drum and transmits traction force from torque con-
verter. In shaft center, there are holes for hydraulic distribution to primary pulley and hydraulic distribution
for lockup ON/OFF.
Primary pulley It is composed of a pair of pulleys (the groove width is changed freely in the axial direction) and the steel belt. The groove width changes according to wrapping radius of steel belt and pulley from low status to
overdrive status continuously with non-step. It is controlled with the oil pressures of primary pulley and
secondary pulley.
Secondary pulley
Steel belt
Manual shaft When the manual shaft is in the P position, the parking rod that is linked to the manual shaft rotates the
parking pole. When the parking pole rotates, it engages with the parking gear, fixing the parking gear. As
a result, the secondary pulley that is integrated with the parking gear is fixed.
Parking rod
Parking pawl
Parking gear
Output gear
The deceleration gears are composed of 2 stages: primary deceleration (output gear, idler gear pair) and
secondary deceleration (reduction gear, final gear pair). All of these gears are helical gears.
Idler gear
Reduction gear
Differential
Torque converter regulator
valve Adjusts the feed pressure to the torque converter to the optimum pressure corresponding to the driving
condition.
Pressure regulator valve Adjusts the discharge pressure from the oil pump to the optimum pressure (line pressure) corresponding
to the driving condition.
Torque converter clutch
control valve Adjusts the torque converter engage and disengage pressures.
Manual valve Distributes the clutch operation pressure to each circuit according to the selector lever position.
Secondary reducing valve Reduces line pressure and adjusts secondary pressure.
Primary reducing valve Reduces line pressure and adjusts primary pressure.
Pilot valve A Reduces line pressure and adjusts pilot pressure to the solenoid valves listed below.
• Primary pressure solenoid valve
• Secondary pressure solenoid valve
• Select solenoid valve
• Line pressure solenoid valve
Pilot valve B Reduces pilot pressure and adjusts pilot pressure to the torque converter clutch solenoid valve.
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TM-28
< SYSTEM DESCRIPTION >[CVT: RE0F10D]
STRUCTURE AND OPERATION
FLUID COOLER & FLUID WARMER SYSTEM : System Description
INFOID:0000000009463985
CVT FLUID COOLER SCHEMATIC
COMPONENT DESCRIPTION
CVT Oil Warmer
• The CVT oil warmer (1) is installed on the front part of transaxle
assembly.
• When engine is started while engine and CVT are cold, engine coolant temperature rises more quickly than CVT fluid tempera-
ture. CVT oil warmer is provided with two circuits for CVT and
engine coolant respectively so that warmed engine coolant warms
CVT quickly. This helps shorten CVT warming up time, improving
fuel economy.
• A cooling effect is obtained when CVT fluid temperature is high.
Heater Thermostat
• The heater thermostat (1) is insta lled on the front part of transaxle
assembly.
• The heater thermostat open and close with set temperature.
SHIFT LOCK SYSTEM
SHIFT LOCK SYSTEM : System DescriptionINFOID:0000000009463986
The shift lever cannot be shifted from the “P” positi on unless the brake pedal is depressed while the ignition
switch is set to ON. The shift lock is unlocked by turn ing the shift lock solenoid ON when the ignition switch is
set to ON, the park position switch is turned ON (selec tor lever is in “P” position), and the stop lamp switch is
turned ON (brake pedal is depressed) as shown in the oper ation chart in the figure. Therefore, the shift lock
solenoid receives no ON signal and the shift lock remains locked if all of the above conditions are not fulfilled.
However, selector operation is allowed if the shift lock release button is pressed.
JSDIA3787GB
JSDIA2280ZZ
JSDIA2585ZZ
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