engine NISSAN TEANA 2014 Service Manual

STR-20
< DTC/CIRCUIT DIAGNOSIS >
S CONNECTOR CIRCUIT
S CONNECTOR CIRCUIT
DescriptionINFOID:0000000009461231
The starter motor magnetic switch is supplied with power when the ignition switch is turned to the START posi-
tion while the selector lever is in the P (Park) or N (Neutral) position.
Diagnosis ProcedureINFOID:0000000009461232
Regarding Wiring Diagram information, refer to STR-7, "Wiring Diagram".
CAUTION:
Perform diagnosis under the condi tion that engine cannot start by the following procedure.
1. Remove fuel pump fuse.
2. Crank or start the engine (where possi ble) until the fuel pressure is released.
1.CHECK “S” CONNECTOR CIRCUIT
1. Turn ignition switch OFF.
2. Disconnect starter motor connector.
3. Shift selector lever to “P” (Park) or “N” (Neutral) position.
4. Check voltage between starter motor harness con nector F28 (QR25DE) or F81 (VQ35DE) and ground.
Is the inspection result normal?
YES >> “S” circuit is OK. Further inspection is necessary. Refer to STR-12, "Work Flow (With GR8-1200
NI)" or STR-16, "Work Flow (Without GR8-1200 NI)".
NO >> GO TO 2.
2.CHECK HARNESS CONTI NUITY (OPEN CIRCUIT)
1. Disconnect IPDM E/R connector.
2. Check continuity between starter motor harness connector F28 (QR25DE) or F81 (VQ35DE) and the
IPDM E/R harness connector F10.
Is the inspection result normal?
YES >> Further inspection is necessary. Refer to STR-12, "Work Flow (With GR8-1200 NI)" or STR-16,
"Work Flow (Without GR8-1200 NI)".
NO >> Repair or replace the harness or connectors.
(+) (-)
Condition Voltage
(Approx.)
Connector Terminal
F28 (QR25DE) S Ground When the ignition switch is in START position Battery voltage
F81 (VQ35DE)
Starter motor harness connector IPDM E/R harness connector Continuity
Connector Terminal Connector Terminal
F28 (QR25DE) S F10 51 Yes
F81 (VQ35DE)
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TM-1
TRANSMISSION & DRIVELINE
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SECTION TM
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CONTENTS
TRANSAXLE & TRANSMISSION
CVT: RE0F10D
PRECAUTION ................ ...............................
9
PRECAUTIONS .............................................. .....9
Precaution for Supplemental Restraint System
(SRS) "AIR BAG" and "SEAT BELT PRE-TEN-
SIONER" ............................................................. ......
9
Precaution for Procedure without Cowl Top Cover ......9
Precaution for TCM and Transaxle Assembly Re-
placement ............................................................ ......
9
General Precautions ...............................................10
On Board Diagnosis (OBD) System of CVT and
Engine ................................................................. ....
11
Removal and Installation Procedure for CVT Unit
Connector ............................................................ ....
11
PREPARATION ...........................................13
PREPARATION .............................................. ....13
Special Service Tools .......................................... ....13
Commercial Service Tools ......................................13
SYSTEM DESCRIPTION .............................14
COMPONENT PARTS ................................... ....14
CVT CONTROL SYSTEM .........................................14
CVT CONTROL SYSTEM : Component Parts Lo-
cation ................................................................... ....
14
CVT CONTROL SYSTEM : TCM ............................16
CVT CONTROL SYSTEM : Transmission Range
Switch .................................................................. ....
16
CVT CONTROL SYSTEM : Primary Speed Sen-
sor ....................................................................... ....
16
CVT CONTROL SYSTEM : Output Speed Sensor ....16
CVT CONTROL SYSTEM : In put Speed Sensor ....17
CVT CONTROL SYSTEM : CVT Fluid Tempera-
ture Sensor .......................................................... ....
17
CVT CONTROL SYSTEM : Primary Pressure
Sensor ................................................................. ....
18
CVT CONTROL SYSTEM : Secondary Pressure
Sensor ................................................................. ....
18
CVT CONTROL SYSTEM : Primary Pressure So-
lenoid Valve ......................................................... ....
19
CVT CONTROL SYSTEM : Secondary Pressure
Solenoid Valve ..................................................... ....
19
CVT CONTROL SYSTEM : Select Solenoid Valve
....
19
CVT CONTROL SYSTEM : Torque Converter
Clutch Solenoid Valve ......................................... ....
19
CVT CONTROL SYSTEM : Line Pressure Sole-
noid Valve ............................................................ ....
20
CVT CONTROL SYSTEM : Overdrive Control
Switch .................................................................. ....
20
CVT CONTROL SYSTEM : O/D OFF Indicator
Lamp .................................................................... ....
20
CVT CONTROL SYSTEM : Shift Position Indica-
tor ........................................................................ ....
20
SHIFT LOCK SYSTEM ..............................................20
SHIFT LOCK SYSTEM : Component Parts Loca-
tion ....................................................................... ....
21
STRUCTURE AND OPERATION .....................22
TRANSAXLE .......................................................... ....22
TRANSAXLE : Cross-Sectional View ......................22
TRANSAXLE : Operation Stat us .............................23
TRANSAXLE : Transaxle Me chanism .....................23
TRANSAXLE : Oil Pressure System .......................26
TRANSAXLE : Component De scription ...................27
FLUID COOLER & FLUID WARMER SYSTEM .... ....27
FLUID COOLER & FLUID WARMER SYSTEM :
System Description .............................................. ....
28
SHIFT LOCK SYSTEM ..............................................28
SHIFT LOCK SYSTEM : Syst em Description ..........28
SYSTEM ...................... ......................................30
CVT CONTROL SYSTEM ..... .....................................30
CVT CONTROL SYSTEM : S ystem Description .....30
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TM-5
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General Specification ..........................................
..
212
Shift Characteristics ..............................................212
Stall Speed ............................................................212
Torque Converter ..................................................212
Heater Thermostat ................................................212
CVT: RE0F10E
PRECAUTION ................ ............................
213
PRECAUTIONS .............................................. ..213
Precaution for Supplemental Restraint System
(SRS) "AIR BAG" and "SEAT BELT PRE-TEN-
SIONER" ............................................................. ..
213
Precaution for Procedure without Cowl Top Cover ..213
Precaution for TCM and Transaxle Assembly Re-
placement ............................................................ ..
213
General Precautions .............................................214
On Board Diagnosis (OBD) System of CVT and
Engine ................................................................. ..
215
Removal and Installation Procedure for CVT Unit
Connector ............................................................ ..
215
PREPARATION .........................................217
PREPARATION .............................................. ..217
Special Service Tools .......................................... ..217
Commercial Service Tools ....................................217
SYSTEM DESCRIPTION ...........................218
COMPONENT PARTS ................................... ..218
CVT CONTROL SYSTEM .......................................218
CVT CONTROL SYSTEM : Component Parts Lo-
cation ................................................................... ..
218
CVT CONTROL SYSTEM : TCM ..........................219
CVT CONTROL SYSTEM : Transmission Range
Switch .................................................................. ..
219
CVT CONTROL SYSTEM : Primary Speed Sen-
sor ....................................................................... ..
219
CVT CONTROL SYSTEM : Output Speed Sensor ..220
CVT CONTROL SYSTEM : Input Speed Sensor ..220
CVT CONTROL SYSTEM : CVT Fluid Tempera-
ture Sensor .......................................................... ..
221
CVT CONTROL SYSTEM : Primary Pressure
Sensor ................................................................. ..
221
CVT CONTROL SYSTEM : Secondary Pressure
Sensor ................................................................. ..
222
CVT CONTROL SYSTEM : Primary Pressure So-
lenoid Valve ......................................................... ..
222
CVT CONTROL SYSTEM : Secondary Pressure
Solenoid Valve .................................................... ..
222
CVT CONTROL SYSTEM : Select Solenoid Valve
..
223
CVT CONTROL SYSTEM : Torque Converter
Clutch Solenoid Valve ......................................... ..
223
CVT CONTROL SYSTEM : Line Pressure Sole-
noid Valve ........................................................... ..
223
CVT CONTROL SYSTEM : Paddle Shifter ...........223
CVT CONTROL SYSTEM : Shift Position Indica-
tor ........................................................................ ..
223
SHIFT LOCK SYSTEM ............................................223
SHIFT LOCK SYSTEM : Component Parts Loca-
tion ....................................................................... ..
224
STRUCTURE AND OPERATION ...................225
TRANSAXLE .......................................................... ..225
TRANSAXLE : Cross-Sectional View ....................225
TRANSAXLE : Operation Stat us ...........................226
TRANSAXLE : Transaxle Me chanism ...................226
TRANSAXLE : Oil Pressure System .....................228
TRANSAXLE : Component De scription .................229
FLUID COOLER & FLUID WARMER SYSTEM .... ..229
FLUID COOLER & FLUID WARMER SYSTEM :
System Description .............................................. ..
230
SHIFT LOCK SYSTEM ............................................230
SHIFT LOCK SYSTEM : Syst em Description ........230
SYSTEM ...................... ....................................232
CVT CONTROL SYSTEM ..... ...................................232
CVT CONTROL SYSTEM : S ystem Description ...232
CVT CONTROL SYSTEM : Fa il-safe ....................233
CVT CONTROL SYSTEM : Pr otection Control .....236
LINE PRESSURE CONTROL ......................... .........237
LINE PRESSURE CONTROL : System Descrip-
tion ....................................................................... ..
237
SHIFT CONTROL .................................................. ..237
SHIFT CONTROL : System Description ................238
SELECT CONTROL ............................................... ..239
SELECT CONTROL : System Description ............239
LOCK-UP CONTROL ............................................ ..240
LOCK-UP CONTROL : System Description ..........240
ON BOARD DIAGNOSTIC (OBD) SYSTEM ..242
Description .............................................................242
Function of OBD ....................................................242
DIAGNOSIS SYSTEM (TCM) ..........................243
DIAGNOSIS DESCRIPTION .................................. ..243
DIAGNOSIS DESCRIPTION : 1 Trip Detection Di-
agnosis and 2 Trip Detection Diagnosis .............. ..
243
DIAGNOSIS DESCRIPTION : DTC and DTC of
1st Trip ................................................................. ..
243
DIAGNOSIS DESCRIPTION : Malfunction Indica-
tor Lamp (MIL) ..................................................... ..
243
DIAGNOSIS DESCRIPTION : Counter System ....243
CONSULT Function ............................................. ..245
ECU DIAGNOSIS INFORMATION ............251
TCM .................................................................251
Reference Value .................................................. ..251
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PRECAUTIONSTM-9
< PRECAUTION > [CVT: RE0F10D]
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PRECAUTION
PRECAUTIONS
Precaution for Supplemental Restraint System (SRS) "AIR BAG" and "SEAT BELT
PRE-TENSIONER"
INFOID:0000000009951696
The Supplemental Restraint System such as “A IR BAG” and “SEAT BELT PRE-TENSIONER”, used along
with a front seat belt, helps to reduce the risk or severi ty of injury to the driver and front passenger for certain
types of collision. Information necessary to service t he system safely is included in the SR and SB section of
this Service Manual.
WARNING:
• To avoid rendering the SRS inoper ative, which could increase the risk of personal injury or death in
the event of a collision which would result in air bag inflation, all maintenance must be performed by
an authorized NISSAN/INFINITI dealer.
• Improper maintenance, including in correct removal and installation of the SRS, can lead to personal
injury caused by unintentional act ivation of the system. For removal of Spiral Cable and Air Bag
Module, see the SR section.
• Do not use electrical test equipm ent on any circuit related to the SRS unless instructed to in this
Service Manual. SRS wiring harnesses can be identi fied by yellow and/or orange harnesses or har-
ness connectors.
PRECAUTIONS WHEN USING POWER TOOLS (AIR OR ELECTRIC) AND HAMMERS
WARNING:
• When working near the Airbag Diagnosis Sensor Un it or other Airbag System sensors with the Igni-
tion ON or engine running, DO NOT use air or el ectric power tools or strike near the sensor(s) with a
hammer. Heavy vibration could activate the sensor( s) and deploy the air bag(s), possibly causing
serious injury.
• When using air or electric power tools or hammers , always switch the Ignition OFF, disconnect the
battery and wait at least three mi nutes before performing any service.
Precaution for Procedure without Cowl Top CoverINFOID:0000000009463955
When performing the procedure after removing cowl top cover, cover
the lower end of windshield with urethane, etc to prevent damage to
windshield.
Precaution for TCM and Tran saxle Assembly ReplacementINFOID:0000000009463956
CAUTION:
• To replace TCM, refer to TM-80, "Description"
.
• To replace transaxle assembly, refer to TM-81, "Description"
.
PIIB3706J
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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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COMPONENT PARTSTM-15
< SYSTEM DESCRIPTION > [CVT: RE0F10D]
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COMPONENT DESCRIPTION
No. Component Function TCM TM-16, "CVT CONTROL SYSTEM : TCM"
ECM• For purposes including improving the feeling when shifting speeds and
preventing drops in engine speed, control signals are exchanged be-
tween the ECM and TCM, and real-time cooperative control is performed
according to the vehicle driving conditions. (Engine and CVT integrated
control)
- Engine and CVT integrated control signal NOTE:
General term for the communication (torque-down permission, torque-
down request, etc.) exchanged between the ECM and TCM.
• The TCM receives the following signal via CAN communications from the ECM.
- Engine speed signal
- Accelerator pedal position signal
- Closed throttle position signal
• The TCM transmits the following signal via CAN communications to the ECM.
- Malfunctioning indicator lamp signal
Refer to EC-21, "Component Parts Location"
for detailed installation loca-
tion.
Combination meter The TCM receives the following signal via CAN communications from the
combination meter for judging the driving request from the driver.
• Overdrive control switch signal
• Vehicle speed signal
The TCM transmits the following signal via CAN communications to the
combination meter.
• O/D OFF indicator signal
• Shift position indicator signal
Refer to MWI-6, "METER SYSTEM : Component Parts Location"
for de-
tailed installation location.
O/D OFF indicator lamp TM-20, "CVT CONTROL SYSTEM : O/D OFF Indicator Lamp"
Malfunction indicator lamp (MIL) TM-41, "DIAGNOSIS DESCRIPTION : Malfunction Indicator Lamp (MIL)"
Shift position indicator TM-20, "CVT CONTROL SYSTEM : Shift Position Indicator"
ABS actuator and electric unit (control unit)The TCM receives the following signal via CAN communications from the
ABS actuator and electric unit (control unit).
• ABS operation signal
Refer to BRC-8, "Component Parts Location"
for detailed installation loca-
tion.
BCM Refer to
BCS-4, "BODY CONTROL SYSTEM : Component Parts Location"

for detailed installation location.
Transmission range switch TM-16, "CVT CONTROL SYSTEM : Transmission Range Switch"
Input speed sensor TM-17, "CVT CONTROL SYSTEM : Input Speed Sensor"
CVT unit connector —
Primary speed sensor TM-16, "CVT CONTROL SYSTEM : Primary Speed Sensor"
Output speed sensor TM-16, "CVT CONTROL SYSTEM : Output Speed Sensor"
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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-25
< SYSTEM DESCRIPTION > [CVT: RE0F10D]
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The movable sheave slides on the shaft to change the gr oove width of the pulley. Input signals of engine load
(accelerator pedal opening), primary pulley speed and secondary pulley speed change the operation pres-
sures of the primary pulley and the secondary pulley, and controls the pulley groove width.
FINAL DRIVE AND DIFFERENTIAL
The deceleration gears are composed of 2 stages: primar y deceleration (output gear, idler gear pair) and sec-
ondary deceleration (reduction gear, final gear pa ir). All of these gears are helical gears.
JSDIA2429GB
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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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