ECU NISSAN TEANA 2014 Service Manual

STC-1
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CONTENTS
STEERING CONTROL SYSTEM
PRECAUTION ................ ...............................3
PRECAUTIONS .............................................. .....3
Precaution for Supplemental Restraint System
(SRS) "AIR BAG" and "SEAT BELT PRE-TEN-
SIONER" ............................................................. ......
3
Service Notice and Precautions for Hydraulic
Pump Electric Power Steering System ............... ......
3
SYSTEM DESCRIPTION ..............................4
COMPONENT PARTS ................................... .....4
Component Parts Location .................................. ......4
Component Description .............................................4
Power Steering Oil Pump Assembly .........................5
SYSTEM ..............................................................6
HYDRAULIC PUMP ELECTRIC POWER STEER-
ING SYSTEM ........ ................................. ......................
6
HYDRAULIC PUMP ELECTRIC POWER
STEERING SYSTEM : System Description ..............
6
HYDRAULIC PUMP ELECTRIC POWER
STEERING SYSTEM : Fail-sa fe ......................... ......
8
HYDRAULIC PUMP ELECTRIC POWER
STEERING SYSTEM : Protec tion Function ..............
9
DIAGNOSIS SYSTEM (POWER STEERING
CONTROL MODULE) .................................... ....
10
CONSULT Function ............................................ ....10
ECU DIAGNOSIS INFORMATION ..............11
POWER STEERING CONTROL MODULE .... ....11
Reference Value ................................................. ....11
Fail-safe ..................................................................12
Protection Function .................................................12
DTC Inspection Priority Chart ............................. ....13
DTC Index ........................................................... ....13
WIRING DIAGRAM ......................................14
HYDRAULIC PUMP ELECTRIC POWER
STEERING SYSTEM .........................................
14
Wiring Diagram .................................................... ....14
BASIC INSPECTION ...................................19
DIAGNOSIS AND REPAIR WORK FLOW .......19
Work Flow ............................................................ ....19
Diagnostic Work Sheet ............................................20
DTC/CIRCUIT DIAGNOSIS .........................22
C1143 STEERING ANGLE SENSOR ...............22
DTC Logic ............................................................ ....22
Diagnosis Procedure ...............................................22
C1601 BATTERY POWER SUPPLY ................23
DTC Logic ................................................................23
Diagnosis Procedure ...............................................23
C1602 NO TUNING SET ...................................26
DTC Logic ................................................................26
Diagnosis Procedure ...............................................26
C1606 EPS MOTOR ..........................................27
DTC Logic ................................................................27
Diagnosis Procedure ...............................................27
C1607, C1608 POWER STEERING CON-
TROL MODULE ................................................
28
DTC Logic ............................................................ ....28
Diagnosis Procedure ...............................................28
C160A HEAT PROTECTION ............................29
DTC Logic ................................................................29
U1000 CAN COMM CIRCUIT ...........................30
Description ...............................................................30
DTC Logic ................................................................30
Diagnosis Procedure ...............................................30
HYDRAULIC PUMP ELECTRIC POWER
STEERING WARNING LAMP ...........................
31
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SYSTEMSTC-9
< SYSTEM DESCRIPTION >
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HYDRAULIC PUMP ELECTRIC POWER STEE RING SYSTEM : Protection Function
INFOID:0000000009460346
• When the steering wheel is operated repeatedly or turned all the way for a long period during parking or low
speed driving, the function of the hydraulic pump elec tric power steering system becomes limited to prevent
the system from overheating. Cont inued operation of the steering wheel will cause the hydraulic pump elec-
tric power steering system to stop and the hydraulic pum p electric power steering system warning lamp may
come ON. In this case, the steering wheel operation temporarily becomes hard. This is not a malfunction.
When the engine is turned OFF (ignition switch OFF) and steering operation is stopped for a while, the tem-
perature of the hydraulic pump electric power steer ing system decreases and the steering operation returns
to normal after restarting the engine.
• Then, the hydraulic pump electric power steering syste m warning lamp turns OFF. If the system is OFF
under the protection state, the hydraulic pump electr ic power steering system warning lamp turns ON to
warn that the system is in the manual steering state. (This is not a system malfunction.) In addition, the fol-
lowing DTC remains to distinguish from malfunction.
C1608 Manual steering state
U1000 Normal control
NOTE:
If the cause is in a different ECU, the state changes to fixed steering assist force.
DTC Fail-safe condition
DTC vehicle condition
C160A The system temporarily enters the manual steering state. (This is not a hydraulic pump electric
power steering system malfunction.)
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STC-10
< SYSTEM DESCRIPTION >
DIAGNOSIS SYSTEM (POWER STEERING CONTROL MODULE)
DIAGNOSIS SYSTEM (POWER STEERING CONTROL MODULE)
CONSULT FunctionINFOID:0000000009460347
CAUTION:
After disconnecting the CONSULT vehicle interface (VI) from the data link connector, the ignition must
be cycled OFF → ON (for at least 5 seconds) → OFF. If this step is not performed, the BCM may not go
to ”sleep mode”, potentially causing a di scharged battery and a no-start condition.
FUNCTION
CONSULT can display each diagnostic item using the diagnostic test modes shown as per the following.
ECU IDENTIFICATION
Displays the part number stored in the control unit.
SELF-DIAG RESULTS MODE
Refer to STC-13, "DTC Index".
When “CRNT” is displayed on self-diagnosis result.
• The system is presently malfunctioning.
When “PAST” is displayed on self-diagnosis result.• System malfunction in the past is detect ed, but the system is presently normal.
DATA MONITOR MODE
Diagnostic test mode Function
ECU identification The part number stored in the control unit can be read.
Self Diagnostic Results Self-diagnostic results and freeze frame data can be read and erased quickly.
Data monitor Input/Output data in the power steering control module can be read.
Monitor item (Unit) Remarks
BATTERY VOLT (V) Displays the power supply voltage for power steering control module.
STEERING ANGLE (deg) Displays the steering angle based on the steering angle signal transmitted by CAN com-
munications.
STR ANG SPD (deg/s) Displays the steering angle speed based on the steering angle signal transmitted by
CAN communications.
MOTOR CURRENT (A) Displays the cu rrent value consumed by power steering control module.
MTR REV SPD COMM (rpm) Displa ys the power steering motor speed command value.
MTR REV SPD (rpm) Displays the power steering motor speed.
C/U TEMP ( °C or °F) Displays the temperature of the power steering control module.
C/U TEMP A ( °C or °F) Displays the temperature of the power steering control module.
MTR ASSIST (%) Displays the current percentage of the allowable assist ratio power steering motor.
ESTM VHCL SPD (km/h or mph) Displays the vehicle speed calculated by the power steering control module.
WARNING LAMP (On/Off) Hydraulic pump electric power steering system warning lamp control status is displayed.
ENGINE STATUS (STOP/RUN/CRANK) Engine speed is displayed from engine condition signal with CAN communication
VHCL SPD JUDGE (OK/NG) Displays the receiving status of the vehicle speed signal transmitted by CAN communi-
cations.
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POWER STEERING CONTROL MODULESTC-11
< ECU DIAGNOSIS INFORMATION >
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ECU DIAGNOSIS INFORMATION
POWER STEERING CONTROL MODULE
Reference ValueINFOID:0000000009460348
VALUES ON THE DIAGNOSIS TOOL
*1: The value changes according to load of power steering motor.
*2: This is in close agreement with a motor speed command value. Although a quick steering operation may
cause disagreement, this is not a malfunction.
*3: Usually, 100% is displayed. An excessive steer ing operation gradually lowers the percentage. When left
standing, the percentage returns to 100%.
Monitor item Data monitor
Condition Display value
BATTERY VOLT Engine running Battery voltage (V)
STEERING ANGLE The steering wheel is not steered. Approx. 0.0 deg
The steering wheel is steered. Displays steering angle (deg)
STR ANG SPD The steering wheel is not steered. Approx. 0.0 deg/s
The steering wheel is steered. Displays steering angle speed (deg/s)
MOTOR CURRENT Engine running Steering wheel: Not steering (There is
no steering force) MAX approx. 10 A
*1
Steering wheel: Right or left turnDisplays consumption current of pow-
er steering control module (A)
MTR REV SPD COMM Engine running Steering wheel: Not steering (There is
no steering force) Shows an almost constant value
(rpm)
Steering wheel: Right or left turn The value changes as a steering
speed (rpm)
MTR REV SPD Engine running Steering wheel: Not steering (There is
no steering force) Shows an almost constant value
(rpm)
*2
Steering wheel: Right or left turn The value changes as a steering
speed (rpm)*2
C/U TEMP Engine running Displays temperature of inside of
power steering control module ( °C or
° F)
C/U TEMP A Engine running Displays temperature of inside of
power steering control module ( °C or
° F)
MTR ASSIST Engine running 100%
*3
ESTM VHCL SPDVehicle stopped 0.00 km/h or mph
While driving Approximately equal to the indication
on speedometer*4
(inside of ±10%)
WARNING LAMP Hydraulic pump electric power steering warning lamp: ON On
Hydraulic pump electric power steering warning lamp: OFF Off
ENGINE STATUS Engine not running STOP
Engine running RUN
Engine cranking CRANK
VHCL SPD JUDGE Vehicle speed signal can be received via CAN communication OK
Vehicle speed signal cannot be received via CAN communica-
tion NG
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STC-12
< ECU DIAGNOSIS INFORMATION >
POWER STEERING CONTROL MODULE
*4: This may not agree with the speedometer indication immediately after the ignition switch is turned ON. This
is not a malfunction.
TERMINAL LAYOUT
PHYSICAL VALUES
Fail-safeINFOID:0000000009460349
When an error occurs in the hydraulic pump electric pow er steering system, fail-safe brings the system to a
halt (manual steering) or restricted (constant steering assi st level) state. When the system is in a halt state,
fail-safe turns ON the hydraulic pump electric power steer ing warning lamp to warn the driver that the hydrau-
lic pump electric power steering system is in the manual steering state.
Protection FunctionINFOID:0000000009460350
• When the steering wheel is operated repeatedly or turned all the way for a long period during parking or low
speed driving, the function of the hydraulic pump elec tric power steering system becomes limited to prevent
the system from overheating. If the steering wheel is operated further more, the hydraulic pump electric
power steering system stops and the hydraulic pump el ectric power steering system warning lamp may be
turned ON. In this case, the steering wheel operation temporarily becomes hard. This is not a malfunction.
When the engine is turned OFF (ignition switch OFF) and steering operation is stopped for a while, the tem-
perature of the hydraulic pump electric power steeri ng system decreases and the steering operation returns
to normal after restarting the engine.
JSGIA0835ZZ
Te r m i n a l N o .
(Wire Color) Description
Condition Value
+ − Signal name Input/Output
1
(W) Ground Battery power supply Input Always Battery Voltage
2
(B) Ground Ground — Always 0 V
5
(BR) Ground Ignition power supply Input Ignition switch: ON Battery Voltage
Ignition switch: OFF 0 V
7
(P) — CAN-L Input/Output — —
8
(L) — CAN-H Input/Output — —
DTC Fail-safe condition
C1143 Certain steering assist force
C1601 Manual steering state
C1606 Manual steering state
C1607 Certain steering assist force
C1608 Manual steering state
U1000 Normal control
NOTE:
If the cause is in a different ECU, the state changes to fixed steering assist force.
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POWER STEERING CONTROL MODULESTC-13
< ECU DIAGNOSIS INFORMATION >
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• Then, the hydraulic pump electric power steering syste m warning lamp turns OFF. If the system is OFF
under the protection state, the hydraulic pump electr ic power steering system warning lamp turns ON to
warn that the system is in the manual steering state. (This is not a system malfunction.) In addition, the fol-
lowing DTC remains to distinguish from malfunction.
DTC Inspection Priority ChartINFOID:0000000009460351
When multiple DTCs are detected simultaneously, c heck one by one depending on the following priority list.
DTC IndexINFOID:0000000009460352
NOTE:
If two or more DTCs are detected, refer to STC-13, "DTC Inspection Priority Chart"
.
DTC vehicle condition
C160A The system temporarily enters the manual steering state. (This is not a hydraulic pump electric
power steering system malfunction.)
Priority Priority order item (DTC)
1 • C1601 BATTERY VOLT
• C1602 NO TUNING SET
• C1606 EPS MOTOR
• C1608 CONTROL UNIT
2 • C1607 EEPROM
3 • C160A HEAT PROTECTION
4 • C1143 ST ANG SEN CIRCUIT
• U1000 CAN COMM CIRCUIT
DTC Items (CONSULT screen terms) Reference
C1143 ST ANG SEN CIRCUIT STC-22, "DTC Logic"
C1601 BATTERY VOLT STC-23, "DTC Logic"
C1602 NO TUNING SETSTC-26, "DTC Logic"
C1606 EPS MOTORSTC-27, "DTC Logic"
C1607 EEPROMSTC-28, "DTC Logic"
C1608 CONTROL UNITSTC-28, "DTC Logic"
C160A HEAT PROTECTION STC-29, "DTC Logic"
U1000 CAN COMM CIRCUITSTC-30, "DTC Logic"
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TM-2
CVT CONTROL SYSTEM : Fail-safe .................. ...31
CVT CONTROL SYSTEM : Protection Control ... ...34
LINE PRESSURE CONTROL ................................ ...35
LINE PRESSURE CONTROL : System Descrip-
tion ....................................................................... ...
35
SHIFT CONTROL ................................................... ...35
SHIFT CONTROL : System Description .................36
SELECT CONTROL ............................................... ...37
SELECT CONTROL : System Description .............38
LOCK-UP CONTROL ............................................. ...38
LOCK-UP CONTROL : System Description ...........38
ON BOARD DIAGNOSTIC (OBD) SYSTEM .....40
Description ........................................................... ...40
Function of OBD .....................................................40
DIAGNOSIS SYSTEM (TCM) ............................41
DIAGNOSIS DESCRIPTION .................................. ...41
DIAGNOSIS DESCRIPTION : 1 Trip Detection Di-
agnosis and 2 Trip Detection Diagnosis .............. ...
41
DIAGNOSIS DESCRIPTION : DTC and DTC of
1st Trip ................................................................. ...
41
DIAGNOSIS DESCRIPTION : Malfunction Indica-
tor Lamp (MIL) ..................................................... ...
41
DIAGNOSIS DESCRIPTION : Counter System .....41
CONSULT Function ................................................43
ECU DIAGNOSIS INFORMATION ..............49
TCM ................................................................. ...49
Reference Value .................................................. ...49
Fail-safe ..................................................................56
Protection Control ...................................................59
DTC Inspection Priority Chart .................................59
DTC Index ..............................................................60
WIRING DIAGRAM .....................................62
CVT CONTROL SYSTEM ............................... ...62
Wiring diagram .................................................... ...62
CVT SHIFT LOCK SYSTEM ........................... ...73
Wiring diagram .................................................... ...73
BASIC INSPECTION ...................................77
DIAGNOSIS AND REPAIR WORK FLOW ..... ...77
Flowchart of Trouble Diagnosis ........................... ...77
Question sheet .......................................................78
ADDITIONAL SERVICE WHEN REPLACING
TCM ................................................................. ...
80
Description ........................................................... ...80
Work Procedure ......................................................80
ADDITIONAL SERVICE WHEN REPLACING
TRANSAXLE ASSEMBLY ............................. ...
81
Description ........................................................... ...81
Work Procedure ................................................... ...81
CVT FLUID ........................................................83
Replacement ........................................................ ...83
Adjustment ..............................................................84
STALL TEST .....................................................86
Work Procedure ................................................... ...86
CVT POSITION ..................................................87
Inspection ............................................................. ...87
Adjustment ..............................................................87
DTC/CIRCUIT DIAGNOSIS ........................88
U0073 COMMUNICATION BUS A OFF ......... ...88
DTC Logic ............................................................ ...88
Diagnosis Procedure ...............................................88
U0100 LOST COMMUNICATION (ECM A) .......89
DTC Logic ............................................................ ...89
Diagnosis Procedure ...............................................89
U0140 LOST COMMUNICATION (BCM) ..........90
DTC Logic ............................................................ ...90
Diagnosis Procedure ...............................................90
U0141 LOST COMMUNICATION (BCM A) ......91
DTC Logic ............................................................ ...91
Diagnosis Procedure ...............................................91
U0155 LOST COMMUNICATION (IPC) ............92
DTC Logic ............................................................ ...92
Diagnosis Procedure ...............................................92
U0300 CAN COMMUNICATION DATA ............93
DTC Logic ............................................................ ...93
Diagnosis Procedure ...............................................93
U1000 CAN COMM CIRCUIT ............................94
Description ........................................................... ...94
DTC Logic ...............................................................94
Diagnosis Procedure ...............................................94
U1117 LOST COMMUNICATION (ABS) ...........95
DTC Logic ............................................................ ...95
Diagnosis Procedure ...............................................95
P062F EEPROM ................................................96
Description ........................................................... ...96
DTC Logic ...............................................................96
Diagnosis Procedure ...............................................96
P0705 TRANSMISSION RANGE SENSOR A ...97
DTC Logic ............................................................ ...97
Diagnosis Procedure ...............................................97
Component Inspection ..........................................101
P0706 TRANSMISSION RANGE SENSOR A ..103
DTC Logic ............................................................ .103
Diagnosis Procedure .............................................103
Component Inspection ..........................................105
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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-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-12
< PRECAUTION >[CVT: RE0F10D]
PRECAUTIONS
• Securely align marking (A) on CVT unit harness connec-
tor terminal body with bayonet ri ng slit (B). Then, be care-
ful not to make a half fit cond ition as shown in the figure.
• Never mistake the slit of bayonet ring for other dent por-
tion.
JPDIA0296ZZ
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