PRECAUTIONS FOR SUPPLEMENTAL RESTRAINT SYSTEM (SRS) AIR BAG AND SEAT BELT PRE-TENSIONER
The Supplemental Restraint System such as AIR BAG and SEAT BELT PRE-TENSIONER, used along with a front seat belt, helps to reduce the risk or severity of injury to the driver and front passenger for certain types of collision. Information necessary to service the system safely is included in the AIR BAG RESTRAINT SYSTEMS article .
| WARNING | To avoid rendering the SRS inoperative, 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 incorrect removal and installation of the SRS, can lead to personal injury caused by unintentional activation of the system. For removal of Spiral Cable and Air Bag Module, see the AIR BAG RESTRAINT SYSTEMS article . Do not use electrical test equipment on any circuit related to the SRS unless instructed to in this article. SRS wiring harnesses can be identified by yellow and/or orange harness connectors. |
FAIL-SAFE
The TCM has an electronic Fail-Safe (limp home mode). This allows the vehicle to be driven even if a major electrical input/output device circuit is damaged.
Under Fail-Safe, the vehicle always runs in third gear, even with a shift lever position of 1, 2 or D. The customer may complain of sluggish or poor acceleration.
When the ignition key is turned ON following Fail-Safe operation, A/T check (position) indicator lamp blinks for about 8 seconds. [For TCM Self-diagnostic Procedure (No Tools), refer to TCM SELF-DIAGNOSTIC PROCEDURE (NO TOOLS) .]
The blinking of the A/T check (position) indicator lamp for about 8 seconds will appear only once and be cleared. The customer may resume normal driving conditions.
Always follow the Work Flow (Refer to WORK FLOW ).
The SELF-DIAGNOSIS results will be as follows
- The first SELF-DIAGNOSIS will indicate damage to the vehicle speed sensor or the revolution sensor.
- During the next SELF-DIAGNOSIS, performed after checking the sensor, no damages will be indicated.
ATF COOLER SERVICE
If A/T fluid contains frictional material (clutches, bands, etc.), replace radiator and flush cooler line using cleaning solvent and compressed air after repair of A/T. Refer to RADIATOR QR25DE or RADIATOR VQ35DE .
Special Service Tools
The actual shapes of Kent-Moore tools may differ from those of special service tools illustrated here.
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- P position Similar to the N position, the clutches do not operate. The parking pawl engages with the parking gear to mechanically hold the output shaft so that the power train is locked.
- N position Power from the input shaft is not transmitted to the output shaft because the clutches do not operate.
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OUTLINE
The automatic transaxle senses vehicle operating conditions through various sensors. It always controls the optimum shift position and reduces shifting and lock-up shocks.
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TCM FUNCTION
The function of the TCM is to
- Receive input signals sent from various switches and sensors.
- Determine required line pressure, shifting point, lock-up operation, and engine brake operation.
- Send required output signals to the respective solenoids.
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LINE PRESSURE CONTROL
TCM has various line pressure control characteristics to meet the driving conditions.
An ON-OFF duty signal is sent to the line pressure solenoid valve based on TCM characteristics.
Hydraulic pressure on the clutch and brake is electronically controlled through the line pressure solenoid valve to accommodate engine torque. This results in smooth shift operation.
Normal Control
The line pressure to throttle opening characteristics is set for suitable clutch operation.
Scheme 685
Back-up Control (Engine brake)
If the selector lever is shifted to 2 position while driving in D 4 (O/D) or D 3 , great driving force is applied to the clutch inside the transmission. Clutch operating pressure (line pressure) must be increased to deal with this driving force.
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During Shift Change
The line pressure is temporarily reduced corresponding to a change in engine torque when shifting gears (that is, when the shift solenoid valve is switched for clutch operation) to reduce shifting shock.
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- Fluid viscosity and frictional characteristics of the clutch facing change with fluid temperature. Clutch engaging or band-contacting pressure is compensated for, according to fluid temperature, to stabilize shifting quality.
- The line pressure is reduced below 60°C (140°F) to prevent shifting shock due to low viscosity of automatic transmission fluid when temperature is low.
- Line pressure is increased to a maximum irrespective of the throttle opening when fluid temperature drops to -10°C (14°F). This pressure rise is adopted to prevent a delay in clutch and brake operation due to extreme drop of fluid viscosity at low temperature.
SHIFT CONTROL
The shift is regulated entirely by electronic control to accommodate vehicle speed and varying engine operations. This is accomplished by electrical signals transmitted by the revolution sensor and the ECM (throttle opening). This results in improved acceleration performance and fuel economy.
Control of Shift Solenoid Valves A and B
The shift solenoid valve performs simple ON-OFF operation. When set to ON, the drain circuit closes and pilot pressure is applied to the shift valve.
The TCM activates shift solenoid valves A and B according to signals from the ECM (throttle opening) and revolution sensor to select the optimum gear position on the basis of the shift schedule memorized in the TCM.
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Pilot pressure generated by the operation of shift solenoid valves A and B is applied to the end face of shift valves A and B.
The drawing above shows the operation of shift valve B. When the shift solenoid valve is ON, pilot pressure applied to the end face of the shift valve overcomes spring force, moving the valve upward.
LOCK-UP CONTROL
The torque converter clutch piston in the torque converter is locked to eliminate torque converter slip to increase power transmission efficiency. The solenoid valve is controlled by an ON-OFF duty signal sent from the TCM. The signal is converted to an oil pressure signal which controls the lock-up piston.
LOCK-UP RELEASED
The OFF-duration of the torque converter clutch solenoid valve is long, and pilot pressure is high. The pilot pressure pushes the end face of the torque converter clutch control valve in combination with spring force to move the valve to the left. As a result, converter pressure is applied to chamber A (torque converter clutch piston release side). Accordingly, the torque converter clutch piston remains unlocked.
LOCK-UP APPLIED
When the OFF-duration of the torque converter clutch solenoid valve is short, pilot pressure drains and becomes low. Accordingly, the control valve moves to the right by the pilot pressure of the other circuit and converter pressure. As a result, converter pressure is applied to chamber B, keeping the torque converter clutch piston applied.
Also smooth lock-up is provided by transient application and release of the lock-up.
OVERRUN CLUTCH CONTROL (ENGINE BRAKE CONTROL)
Forward one-way clutch is used to reduce shifting shocks in downshifting operations. This clutch transmits engine torque to the wheels. However, drive force from the wheels is not transmitted to the engine because the one-way clutch rotates idle. This means the engine brake is not effective. The overrun clutch operates when the engine brake is needed.
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Overrun Clutch Solenoid Valve Control
The overrun clutch solenoid valve is operated by an ON-OFF signal transmitted by the TCM to provide overrun clutch control (engine brake control).
When this solenoid valve is ON, the pilot pressure drain port closes.
When it is OFF, the drain port opens.
During the solenoid valve ON pilot pressure is applied to the end face of the overrun clutch control valve.
Scheme 695
OBD-II Function for A/T System
The ECM provides emission-related on board diagnostic (OBD-II) functions for the A/T system. One function is to receive a signal from the TCM used with OBD-related parts of the A/T system. The signal is sent to the ECM when a malfunction occurs in the corresponding OBD-related part. The other function is to indicate a diagnostic result by means of the MIL (malfunction indicator lamp) on the instrument panel. Sensors, switches and solenoid valves are used as sensing elements.
The MIL automatically illuminates in One or Two Trip Detection Logic when a malfunction is sensed in relation to A/T system parts.
ONE TRIP DETECTION LOGIC
If a malfunction is sensed during the first test drive, the MIL will illuminate and the malfunction will be stored in the ECM memory as a DTC. The TCM is not provided with such a memory function.
TWO TRIP DETECTION LOGIC
When a malfunction is sensed during the first test drive, it is stored in the ECM memory as a 1st trip DTC (diagnostic trouble code) or 1st trip freeze frame data. At this point, the MIL will not illuminate. - First Trip If the same malfunction as that experienced during the first test drive is sensed during the second test drive, the MIL will illuminate.-Second Trip
A/T-related parts for which the MIL illuminates during the first or second test drive are listed below.
Scheme 696
The trip in the One or Two Trip Detection Logic means a driving mode in which self-diagnosis is performed during vehicle operation.
Freeze Frame Data and 1st Trip Freeze Frame Data
The ECM has a memory function, which stores the driving condition such as fuel system status, calculated load value, engine coolant temperature, short term fuel trim, long term fuel trim, engine speed and vehicle speed at the moment the ECM detects a malfunction.
Data which are stored in the ECM memory, along with the 1st trip DTC, are called 1st trip freeze frame data, and the data, stored together with the DTC data, are called freeze frame data and displayed on CONSULT-II or GST. The 1st trip freeze frame data can only be displayed on the CONSULT-II screen, not on the GST. For details, refer to SELF-DIAGNOSTICS - ALTIMA article.
Only one set of freeze frame data (either 1st trip freeze frame data of freeze frame data) can be stored in the ECM. 1st trip freeze frame data is stored in the ECM memory along with the 1st trip DTC. There is no priority for 1st trip freeze frame data and it is updated each time a different 1st trip DTC is detected. However, once freeze frame data (2nd trip detection/MIL on) is stored in the ECM memory, 1st trip freeze frame data is no longer stored. Remember, only one set of freeze frame data can be stored in the ECM. The ECM has the following priorities to update the data.
Scheme 697
Both 1st trip freeze frame data and freeze frame data (along with the DTCs) are cleared when the ECM memory is erased.
CONSULT-II
After performing SELF-DIAGNOSTIC PROCEDURE (WITH CONSULT-II) place check marks for results on the Diagnostic Worksheet DIAGNOSTIC WORKSHEET . Reference pages are provide following the items.
Note. The CONSULT-II electrically displays shift timing and lock-up timing (that is, operation timing of each solenoid). Check for time difference between actual shift timing and the CONSULT-II display. If the difference is noticeable, mechanical parts (except solenoids, sensors, etc.) may be malfunctioning. Check mechanical parts using applicable diagnostic procedures. Shift schedule (which implies gear position) displayed on CONSULT-II and that indicated in Service Manual may differ slightly. This occurs because of the following reasons: Actual shift schedule has more or less tolerance or allowance, Shift schedule indicated in Service Manual refers to the point where shifts start, and Gear position displayed on CONSULT-II indicates the point where shifts are completed. Shift solenoid valve A or B is displayed on CONSULT-II at the start of shifting. Gear position is displayed upon completion of shifting (which is computed by TCM). Additional CONSULT-II information can be found in the Operation Manual supplied with the CONSULT-II unit.
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- Turn on CONSULT-II and touch ENGINE for OBD-II detected items or touch A/T for TCM self-diagnosis. If A/T is not displayed, check TCM power supply and ground circuit. Refer to «TROUBLE DIAGNOSIS FOR POWER SUPPLY»(ref-206576-S38730837612005112500000) . If result is NG, refer to «POWER DISTRIBUTION»(ref-151282-S09691687642002121200000) .
- Touch SELF DIAGNOSIS. Display shows malfunction experienced since the last erasing operation. CONSULT-II performs Real Time Diagnosis. Also, any malfunction detected while in this mode will be displayed at real time.
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- Turn ignition switch OFF.
- Connect CONSULT-II to Data link connector, which is located in left side dash panel.
- Turn ignition switch ON.
- Touch START.
- Touch A/T.
- Touch DTC WORK SUPPORT.
- Touch select item menu (1ST, 2ND, etc.).
- Touch START.
- Perform driving test according to DTC CONFIRMATION PROCEDURE in TROUBLE DIAGNOSIS FOR DTC. When testing conditions are satisfied, CONSULT-II screen changes from OUT OF CONDITION to TESTING.
- Stop vehicle. If NG appears on the screen, malfunction may exist. Go to DIAGNOSTIC PROCEDURE.
- Perform test drive to check gear shift feeling in accordance with instructions displayed.
- Touch YES or NO.
- CONSULT-II procedure ended.
If NG appears on the screen, a malfunction may exist. Go to DIAGNOSTIC PROCEDURE.
Scheme 720
Stall revolution is too high in R position
- Engine brake does not function in 1 position..... Low & reverse brake slippage
- Engine brake functions in 1 position..... Reverse clutch slippage
CAN Communication
CAN (Controller Area Network) is a serial communication line for real time application. It is an on-vehicle multiplex communication line with high data communication speed and excellent error detection ability. Many electronic control units are equipped onto a vehicle, and each control unit shares information and links with other control units during operation (not independent). In CAN communication, control units are connected with 2 communication lines (CAN H line, CAN L line) allowing a high rate of information transmission with less wiring. Each control unit transmits/receives data but selectively reads required data only.
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Possible Cause
Check the following items.
- Harness or connectors (The park/neutral position (PNP) switch circuit is open or shorted.)
- Park/neutral position (PNP) switch
WITH GST
Follow the procedure With CONSULT-II.
CONSULT-II REFERENCE VALUE IN DATA MONITOR MODE
Remarks: Specification data are reference values.
Scheme 730
Check the following items.
- Harness or connectors (The sensor circuit is open or shorted.)
- A/T fluid temperature sensor
Follow the procedure With CONSULT-II.
Check the following items.
- Harness or connectors (The sensor circuit is open or shorted.)
- Revolution sensor
Follow the procedure With CONSULT-II.
Check harness or connectors. (The sensor circuit is open or shorted.)
Follow the procedure With CONSULT-II.
Check the following items.
- Shift solenoid valve A
- Shift solenoid valve B
- Each clutch
- Hydraulic control circuit
Follow the procedure With CONSULT-II.
Check the following items.
- Shift solenoid valve B
- Each clutch
- Hydraulic control circuit
Follow the procedure With CONSULT-II.
Check the following items.
- Shift solenoid valve A
- Each clutch
- Hydraulic control circuit
Follow the procedure With CONSULT-II.
Remarks: Specification data are reference values.
Scheme 731
Check the following items.
- Shift solenoid valve A
- Shift solenoid valve B
- Line pressure solenoid valve
- Each clutch
- Hydraulic control circuit
Follow the procedure With CONSULT-II.
Remarks: Specification data are reference values.
Scheme 732
Check the following items.
- Torque converter clutch solenoid valve
- Harness or connectors
(The solenoid circuit is open or shorted.)
Follow the procedure With CONSULT-II.
Remarks: Specification data are reference value.
Scheme 733
Check the following items.
- Line pressure solenoid valve
- Torque converter clutch solenoid valve
- Each clutch
- Hydraulic control circuit
Follow the procedure With CONSULT-II.
Remarks: Specification data are reference values.
Scheme 734
Check the following items.
- Harness or connectors (The solenoid circuit is open or shorted.)
- Line pressure solenoid valve
Follow the procedure With CONSULT-II.
Check the following items.
- Harness or connectors (The solenoid circuit is open or shorted.)
- Shift solenoid valve A
Follow the procedure With CONSULT-II.
Check the following items.
- Harness or connectors (The solenoid circuit is open or shorted.)
- Shift solenoid valve B
Follow the procedure With CONSULT-II.
Remarks: Specification data are reference values.
Scheme 735
Harness or connectors
- (The sensor circuit is open or shorted.)
Follow the procedure With CONSULT-II.
Check the following items.
- Harness or connectors (The solenoid circuit is open or shorted.)
- Overrun clutch solenoid valve
Follow the procedure With CONSULT-II.
Harness or connectors
(CAN communication line is open or shorted.)
Follow the procedure WITH CONSULT-II.
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- Turn ignition switch ON.
- Wait at least 6 seconds or start engine and wait at least 6 seconds.
- Perform self-diagnosis. Refer to «TCM SELF-DIAGNOSTIC PROCEDURE (NO TOOLS)»(ref-206576-S39240413392005112500000) .
Remarks: Specification data are reference values.
Scheme 738
Check the following items.
- Harness or connectors (The sensor circuit is open or shorted.)
- A/T fluid temperature sensor
Check the following items.
- Harness or connectors (The sensor circuit is open or shorted.)
- Vehicle speed sensor
Check TCM.
1. A/T Check (Position) Indicator Lamp Does Not Come On
SYMPTOM
A/T check (position) indicator lamp does not come on for about 2 seconds when turning ignition switch to ON.
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- CHECK TCM POWER SOURCE Turn ignition switch to ON position. (Do not start engine.) Check voltage between TCM terminals 10 (R/Y), 19 (R/Y), and 28 (Y/R) and ground. Voltage: Battery voltage OK or NG OK: GO TO 2. NG: GO TO 3 .
- CHECK POWER SOURCE STEP 2 Turn ignition switch to OFF position. Check voltage between TCM terminal 28 (Y/R) and ground. Voltage: Battery voltage OK or NG OK: GO TO 4 . NG: GO TO 3.
- DETECT MALFUNCTIONING ITEM Check the following items: Harness for short or open between ignition switch and TCM (Main harness) Refer to «WIRING DIAGRAM - AT - MAIN»(ref-206576-S41872545622005112500000) . Ignition switch and fuse Refer to «POWER DISTRIBUTION»(ref-151282-S09691687642002121200000) . OK or NG OK: GO TO 4. NG: Repair or replace damaged parts.
- CHECK TCM GROUND CIRCUIT Turn ignition switch to OFF position. Disconnect TCM harness connector. Check continuity between TCM harness connector terminals 25, 48 and ground. Continuity should exist. OK or NG OK: GO TO 5. NG: Repair open circuit or short to ground or short to power in harness or connectors. Refer to «WIRING DIAGRAM - AT - MAIN»(ref-206576-S41872545622005112500000) .
- DETECT MALFUNCTIONING ITEM Check the following items: Harness and fuse for short or open between ignition switch and A/T check (position) indicator lamp (Main harness) Refer to «POWER DISTRIBUTION»(ref-151282-S09691687642002121200000) . Harness for short or open between A/T check (position) indicator lamp and TCM OK or NG OK: GO TO 6. NG: Repair or replace damaged parts.
- CHECK SYMPTOM Check again. OK or NG OK: INSPECTION END NG: GO TO 8.
- CHECK TCM INSPECTION Perform TCM input/output signal inspection. If NG, recheck TCM pin terminals for damage or loose connection with harness connector. OK or NG OK: INSPECTION END NG: Repair or replace damaged parts.
2. Engine Cannot Be Started In P and N Position
SYMPTOM
- Engine cannot be started with selector lever in P or N position.
- Engine can be started with selector lever in D, 2, 1 or R position.
Scheme 742
- CHECK PARK/NEUTRAL POSITION (PNP) SWITCH CIRCUIT WITH CONSULT-II Does TCM INPUT SIGNALS in DATA MONITOR show damage to park/neutral position (PNP) switch circuit? Without CONSULT-II Does self-diagnosis show damage to park/neutral position (PNP) switch circuit? Yes or No Yes: Check park/neutral position (PNP) switch circuit. Refer to «DTC P0705 PARK/NEUTRAL POSITION SWITCH»(ref-206576-S11249973802005112500000) . No: GO TO 2.
- CHECK PARK/NEUTRAL POSITION (PNP) SWITCH Check for short or open of park/neutral position (PNP) switch harness connector terminals 1 and 2. OK or NG OK: GO TO 3. NG: Repair or replace park/neutral position (PNP) switch.
- CHECK STARTING SYSTEM Check starting system. Refer to «WORK FLOW»(ref-152835-S07707758392003030300000) . OK or NG OK: INSPECTION END NG: Repair or replace damaged parts.
3. In P Position, Vehicle Moves Forward or Backward When Pushed
SYMPTOM
Vehicle moves when it is pushed forward or backward with selector lever in P position.
Scheme 743
- CHECK PARKING COMPONENTS Check parking components. Refer to «OVERHAUL»(ref-206576-S37744387762005112500000) and «DISASSEMBLY»(ref-206576-S24023945802005112500000) . OK or NG OK: INSPECTION END NG: Repair or replace damaged parts.
4. In N Position, Vehicle Moves
SYMPTOM: Vehicle moves forward or backward when selecting N position .
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- CHECK PARK/NEUTRAL POSITION (PNP) SWITCH CIRCUIT WITH CONSULT-II Does TCM INPUT SIGNALS in DATA MONITOR show damage to park/neutral position (PNP) switch circuit? Without CONSULT-II Does self-diagnosis show damage to park/neutral position (PNP) switch circuit? Yes or No Yes: Check park/neutral position (PNP) switch circuit. Refer to «DTC P0705 PARK/NEUTRAL POSITION SWITCH»(ref-206576-S11249973802005112500000) . No: GO TO 2.
- CHECK CONTROL LINKAGE Check control cable. Refer to «CONTROL CABLE»(ref-206576-S31544128562005112500000) . OK or NG OK: GO TO 4 . NG: GO TO 3.
- ADJUST CONTROL CABLE Adjust control cable. Refer to «CONTROL CABLE ADJUSTMENT»(ref-206576-S16824758802005112500000) .
- CHECK A/T FLUID LEVEL Check A/T fluid level again. OK or NG OK: GO TO 5. NG: Refill ATF.
- CHECK A/T FLUID CONDITION Remove oil pan. Check A/T fluid condition. OK or NG OK: GO TO 7 . NG: GO TO 6.
- DETECT MALFUNCTIONING ITEM Disassemble A/T. Check the following items: Forward clutch assembly Overrun clutch assembly Reverse clutch assembly OK or NG OK: GO TO 7. NG: Repair or replace damaged parts.
- CHECK SYMPTOM Check again. OK or NG OK: INSPECTION END NG: GO TO 8.
- CHECK TCM INSPECTION Perform TCM input/output signal inspection. If NG, recheck TCM pin terminals for damage or loose connection with harness connector. OK or NG OK: INSPECTION END NG: Repair or replace damaged parts.
5. Large Shock. N --> R Position
SYMPTOM: There is large shock when changing from N to R position .
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- CHECK SELF-DIAGNOSTIC RESULTS Does self-diagnosis show damage to A/T fluid temperature sensor, line pressure solenoid valve or throttle position sensor [accelerator pedal position (APP) sensor] circuit? Yes or No Yes: GO TO 2. No: GO TO 3 .
- CHECK DAMAGED CIRCUIT Check damaged circuit. Refer to «DTC P0710 A/T FLUID TEMPERATURE SENSOR CIRCUIT»(ref-206576-S30730858012005112500000) , «DTC P0745 LINE PRESSURE SOLENOID VALVE»(ref-206576-S33938754572005112500000) or «DTC P1705 THROTTLE POSITION SENSOR [ACCELERATOR PEDAL POSITION (APP) SENSOR]»(ref-206576-S10484696542005112500000) .
- CHECK THROTTLE POSITION SENSOR [ACCELERATOR PEDAL POSITION (APP) SENSOR] Check throttle position sensor [accelerator pedal position (APP) sensor]. Refer to «SELF-DIAGNOSTICS - ALTIMA»(ref-135505) article. OK or NG OK: GO TO 4. NG: Repair or replace throttle position sensor [accelerator pedal position (APP) sensor].
- CHECK LINE PRESSURE Check line pressure at idle with selector lever in D position. Refer to «LINE PRESSURE TEST»(ref-206576-S31290532002005112500000) . OK or NG OK: GO TO 6 . NG: GO TO 5.
- DETECT MALFUNCTIONING ITEM Remove control valve assembly. Refer to «CONTROL VALVE ASSEMBLY AND ACCUMULATORS»(ref-206576-S06596818422005112500000) . Check the following items: Valves to control line pressure (Pressure regulator valve, pressure modifier valve, pilot valve and pilot filter) Line pressure solenoid valve OK or NG OK: GO TO 6. NG: Repair or replace damaged parts.
- CHECK SYMPTOM Check again. OK or NG OK: INSPECTION END NG: GO TO 7.
- CHECK TCM INSPECTION Perform TCM input/output signal inspection. If NG, recheck TCM pin terminals for damage or loose connection with harness connector. OK or NG OK: INSPECTION END NG: Repair or replace damaged parts.
6. Vehicle Does Not Creep Backward In R Position
SYMPTOM
Vehicle does not creep backward when selecting R position.
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- CHECK A/T FLUID LEVEL Check A/T fluid level again. OK or NG OK: GO TO 2. NG: Refill ATF.
- CHECK STALL REVOLUTION Check stall revolution with selector lever in 1 and R positions. OK or NG OK: GO TO 5 . OK in 1 position, NG in R position: GO TO 3. NG in both 1 and R positions: GO TO 4 .
- DETECT MALFUNCTIONING ITEM Remove control valve assembly. Refer to «CONTROL VALVE ASSEMBLY AND ACCUMULATORS»(ref-206576-S06596818422005112500000) . Check the following items: Valves to control line pressure (Pressure regulator valve, pressure modifier valve, pilot valve and pilot filter) Line pressure solenoid valve Disassemble A/T. Check the following items: Oil pump assembly Torque converter Reverse clutch assembly High clutch assembly OK or NG OK: GO TO 5 . NG: Repair or replace damaged parts.
- DETECT MALFUNCTIONING ITEM Remove control valve assembly. Refer to «CONTROL VALVE ASSEMBLY AND ACCUMULATORS»(ref-206576-S06596818422005112500000) . Check the following items: Valves to control line pressure (Pressure regulator valve, pressure modifier valve, pilot valve and pilot filter) Line pressure solenoid valve Disassemble A/T. Check the following items: Oil pump assembly Torque converter Reverse clutch assembly High clutch assembly Low & reverse brake assembly Low one-way clutch OK or NG OK: GO TO 5. NG: Repair or replace damaged parts.
- CHECK LINE PRESSURE Check line pressure at idle with selector lever in R position. Refer to «LINE PRESSURE TEST»(ref-206576-S31290532002005112500000) . OK or NG OK: GO TO 7 . NG: GO TO 6.
- DETECT MALFUNCTIONING ITEM Remove control valve assembly. Refer to «CONTROL VALVE ASSEMBLY AND ACCUMULATORS»(ref-206576-S06596818422005112500000) . Check the following items: Valves to control line pressure (Pressure regulator valve, pressure modifier valve, pilot valve and pilot filter) Line pressure solenoid valve Disassemble A/T. Check the following item: Oil pump assembly OK or NG OK: GO TO 7. NG: Repair or replace damaged parts.
- CHECK A/T FLUID CONDITION Remove oil pan. Check A/T fluid condition. OK or NG OK: GO TO 9 . NG: GO TO 8.
- DETECT MALFUNCTIONING ITEM Remove control valve assembly. Refer to «CONTROL VALVE ASSEMBLY AND ACCUMULATORS»(ref-206576-S06596818422005112500000) . Check the following items: Valves to control line pressure (Pressure regulator valve, pressure modifier valve, pilot valve and pilot filter) Line pressure solenoid valve Disassemble A/T. Check the following items: Oil pump assembly Torque converter Reverse clutch assembly High clutch assembly Low & reverse brake assembly Low one-way clutch OK or NG OK: GO TO 9. NG: Repair or replace damaged parts.
- CHECK SYMPTOM Check again. OK or NG OK: INSPECTION END NG: GO TO 10.
- CHECK TCM INSPECTION Perform TCM input/output signal inspection. If NG, recheck TCM pin terminals for damage or loose connection with harness connector. OK or NG OK: INSPECTION END NG: Repair or replace damaged parts.
7. Vehicle Does Not Creep Forward in D, 3, 2 or 1 Position
SYMPTOM: Vehicle does not creep forward when selecting D, 3, 2 or 1 position .
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- CHECK A/T FLUID LEVEL Check A/T fluid level again. OK or NG OK: GO TO 2. NG: Refill ATF.
- CHECK STALL REVOLUTION Check stall revolution with selector lever in D position. Refer to «STALL TEST»(ref-206576-S39569768992005112500000) . OK or NG OK: GO TO 4 . NG: GO TO 3.
- DETECT MALFUNCTIONING ITEM Remove control valve assembly. Refer to «CONTROL VALVE ASSEMBLY AND ACCUMULATORS»(ref-206576-S06596818422005112500000) . Check the following items: Valves to control line pressure (Pressure regulator valve, pressure modifier valve, pilot valve and pilot filter) Line pressure solenoid valve Disassemble A/T. Check the following items: Oil pump assembly Forward clutch assembly Forward one-way clutch Low one-way clutch Low & reverse brake assembly Torque converter OK or NG OK: GO TO 4. NG: Repair or replace damaged parts.
- CHECK LINE PRESSURE Check line pressure at idle with selector lever in D position. Refer to «LINE PRESSURE TEST»(ref-206576-S31290532002005112500000) . OK or NG OK: GO TO 6 . NG: GO TO 5.
- DETECT MALFUNCTIONING ITEM Remove control valve assembly. Refer to «CONTROL VALVE ASSEMBLY AND ACCUMULATORS»(ref-206576-S06596818422005112500000) . Check the following items: Valves to control line pressure (Pressure regulator valve, pressure modifier valve, pilot valve and pilot filter) Line pressure solenoid valve Disassemble A/T. Check the following item: Oil pump assembly OK or NG OK: GO TO 6. NG: Repair or replace damaged parts.
- CHECK A/T FLUID CONDITION Remove oil pan. Check A/T fluid condition. OK or NG OK: GO TO 8 . NG: GO TO 7.
- DETECT MALFUNCTIONING ITEM Remove control valve assembly. Refer to «CONTROL VALVE ASSEMBLY AND ACCUMULATORS»(ref-206576-S06596818422005112500000) . Check the following items: Valves to control line pressure (Pressure regulator valve, pressure modifier valve, pilot valve and pilot filter) Line pressure solenoid valve Disassemble A/T. Check the following items: Oil pump assembly Forward clutch assembly Forward one-way clutch Low one-way clutch Low & reverse brake assembly Torque converter OK or NG OK: GO TO 8. NG: Repair or replace damaged parts.
- CHECK SYMPTOM Check again. OK or NG OK: INSPECTION END NG: GO TO 9.
- CHECK TCM INSPECTION Perform TCM input/output signal inspection. If NG, recheck TCM pin terminals for damage or loose connection with harness connector. OK or NG OK: INSPECTION END NG: Repair or replace damaged parts.
8. Vehicle Cannot Be Started From D 1
SYMPTOM
Vehicle cannot be started from D 1 on Cruise test - Part 1.
Scheme 759
Scheme 760
Scheme 761
Scheme 762
- CHECK SYMPTOM Is 6. Vehicle Does Not Creep Backward In R Position OK? Yes or No Yes: GO TO 2. No: Go to «6. VEHICLE DOES NOT CREEP BACKWARD IN R POSITION»(ref-206576-S18911171622005112500000) .
- CHECK SELF-DIAGNOSTIC RESULTS Does self-diagnosis show damage to vehicle speed sensor-A/T (revolution sensor), shift solenoid valve A, B or vehicle speed sensor-MTR after cruise test? Yes or No Yes: Check damaged circuit. Refer to «DTC P0720 VEHICLE SPEED SENSOR.A/T (REVOLUTION SENSOR)»(ref-206576-S27465655622005112500000) , «DTC P0750 SHIFT SOLENOID VALVE A»(ref-206576-S26820878972005112500000) , «DTC P0755 SHIFT SOLENOID VALVE B»(ref-206576-S24011246872005112500000) or «DTC VEHICLE SPEED SENSOR MTR»(ref-206576-S21711658812005112500000) . No: GO TO 3.
- CHECK THROTTLE POSITION SENSOR [ACCELERATOR PEDAL POSITION (APP) SENSOR] Check throttle position sensor [accelerator pedal position (APP) sensor]. Refer to «SELF-DIAGNOSTICS - ALTIMA»(ref-135505) article. OK or NG OK: GO TO 4. NG: Repair or replace throttle position sensor [accelerator pedal position (APP) sensor].
- CHECK LINE PRESSURE Check line pressure at stall point with selector lever in D position. Refer to «LINE PRESSURE TEST»(ref-206576-S31290532002005112500000) . OK or NG OK: GO TO 6 . NG: GO TO 5.
- DETECT MALFUNCTIONING ITEM Remove control valve assembly. Refer to «CONTROL VALVE ASSEMBLY AND ACCUMULATORS»(ref-206576-S06596818422005112500000) . Check the following items: Shift valve A Shift valve B Shift solenoid valve A Shift solenoid valve B Pilot valve Pilot filter Disassemble A/T. Check the following items: Forward clutch assembly Forward one-way clutch Low one-way clutch High clutch assembly Torque converter Oil pump assembly OK or NG OK: GO TO 8 . NG: Repair or replace damaged parts.
- CHECK A/T FLUID CONDITION Remove oil pan. Check A/T fluid condition. OK or NG OK: GO TO 7. NG: GO TO 5 .
- DETECT MALFUNCTIONING ITEM Remove control valve assembly. Refer to «CONTROL VALVE ASSEMBLY AND ACCUMULATORS»(ref-206576-S06596818422005112500000) . Check the following items: Shift valve A Shift valve B Shift solenoid valve A Shift solenoid valve B Pilot valve Pilot filter OK or NG OK: GO TO 8. NG: Repair or replace damage parts.
- CHECK SYMPTOM Check again. OK or NG OK: INSPECTION END NG: GO TO 9.
- CHECK TCM INSPECTION Perform TCM input/output signal inspection. If NG, recheck TCM pin terminals for damage or loose connection with harness connector. OK or NG OK: INSPECTION END NG: Repair or replace damaged parts.
9. A/T Does Not Shift: D 1 --> D 2 or Does Not Kickdown: D 4 --> D 2
SYMPTOM
A/T does not shift from D 1 to D 2 at the specified speed.
A/T does not shift from D 4 to D 2 when depressing accelerator pedal fully at the specified speed .
Scheme 763
Scheme 764
Scheme 765
- CHECK SYMPTOM Are 7. Vehicle Does Not Creep Forward In D, 3, 2 Or 1 Position and 8. Vehicle Cannot Be Started From D 1 OK? Yes or No Yes: GO TO 2. No: Go to «7. VEHICLE DOES NOT CREEP FORWARD IN D, 3, 2 OR 1 POSITION»(ref-206576-S23379773682005112500000) and «8. VEHICLE CANNOT BE STARTED FROM»(ref-206576-S05728877162005112500000) D 1 .
- CHECK SELF-DIAGNOSTIC RESULTS With CONSULT-II Does TCM INPUT SIGNALS in DATA MONITOR show damage to park/neutral position (PNP) switch circuit? Without CONSULT-II Does self-diagnosis show damage to park/neutral position (PNP) switch circuit? Yes or No Yes: Check park/neutral position (PNP) switch circuit. Refer to «DTC P0705 PARK/NEUTRAL POSITION SWITCH»(ref-206576-S11249973802005112500000) . No: GO TO 3.
- CHECK VEHICLE SPEED SENSOR. A/T AND VEHICLE SPEED SENSOR. MTR CIRCUIT Check vehicle speed sensor. A/T (revolution sensor) and vehicle speed sensor. MTR circuit. Refer to «DTC P0720 VEHICLE SPEED SENSOR. A/T (REVOLUTION SENSOR)»(ref-206576-S27465655622005112500000) and «DTC VEHICLE SPEED SENSOR MTR»(ref-206576-S21711658812005112500000) . OK or NG OK: GO TO 4. NG: Repair or replace vehicle speed sensor. A/T (revolution sensor) and vehicle speed sensor. MTR circuits.
- CHECK THROTTLE POSITION SENSOR [ACCELERATOR PEDAL POSITION (APP) SENSOR] Check throttle position sensor [accelerator pedal position (APP) sensor]. Refer to «SELF-DIAGNOSTICS - ALTIMA»(ref-135505) article. OK or NG OK: GO TO 5. NG: Repair or replace throttle position sensor [accelerator pedal position (APP) sensor].
- CHECK A/T FLUID CONDITION Remove oil pan. Check A/T fluid condition. OK or NG OK: GO TO 7 . NG: GO TO 6.
- DETECT MALFUNCTIONING ITEM Remove control valve. Refer to «CONTROL VALVE ASSEMBLY AND ACCUMULATORS»(ref-206576-S06596818422005112500000) . Check the following items: Shift valve A Shift solenoid valve A Pilot valve Pilot filter Disassemble A/T. Check the following items: Servo piston assembly Brake band Oil pump assembly OK or NG OK: GO TO 8 . NG: Repair or replace damaged parts.
- DETECT MALFUNCTIONING ITEM Remove control valve. Refer to «CONTROL VALVE ASSEMBLY AND ACCUMULATORS»(ref-206576-S06596818422005112500000) . Check the following items: Shift valve A Shift solenoid valve A Pilot valve Pilot filter OK or NG OK: GO TO 8. NG: Repair or replace damaged parts.
- CHECK SYMPTOM Check again. OK or NG OK: INSPECTION END NG: GO TO 9.
- CHECK TCM INSPECTION Perform TCM input/output signal inspection. If NG, recheck TCM pin terminals for damage or loose connection with harness connector. OK or NG OK: INSPECTION END NG: Repair or replace damaged parts.
10. A/T Does Not Shift: D 2 --> D 3
SYMPTOM
A/T does not shift from D 2 to D 3 at the specified speed.
Scheme 766
Scheme 767
Scheme 768
- CHECK SYMPTOM Are 7. Vehicle Does Not Creep Forward In D, 3, 2 Or 1 Position and 8. Vehicle Cannot Be Started From D 1 OK? Yes or No Yes: GO TO 2. No: Go to «7. VEHICLE DOES NOT CREEP FORWARD IN D, 3, 2 OR 1 POSITION»(ref-206576-S23379773682005112500000) and «8. VEHICLE CANNOT BE STARTED FROM»(ref-206576-S05728877162005112500000) D 1 .
- CHECK PARK/NEUTRAL POSITION (PNP) SWITCH CIRCUIT With CONSULT-II Does TCM INPUT SIGNALS in DATA MONITOR show damage to park/neutral position (PNP) switch circuit? Without CONSULT-II Does self-diagnosis show damage to park/neutral position (PNP) switch circuit? Yes or No Yes: Check park/neutral position (PNP) switch circuit. Refer to «DTC P0705 PARK/NEUTRAL POSITION SWITCH»(ref-206576-S11249973802005112500000) . No: GO TO 3.
- CHECK THROTTLE POSITION SENSOR [ACCELERATOR PEDAL POSITION (APP) SENSOR] Check throttle position sensor [accelerator pedal position (APP) sensor]. Refer to «SELF-DIAGNOSTICS - ALTIMA»(ref-135505) article. OK or NG OK: GO TO 4. NG: Repair or replace throttle position sensor [accelerator pedal position (APP) sensor].
- CHECK A/T FLUID CONDITION Remove oil pan. Check A/T fluid condition. OK or NG OK: GO TO 6 . NG: GO TO 5.
- DETECT MALFUNCTIONING ITEM Remove control valve. Refer to «CONTROL VALVE ASSEMBLY AND ACCUMULATORS»(ref-206576-S06596818422005112500000) . Check the following items: Shift valve B Shift solenoid valve B Pilot valve Pilot filter Disassemble A/T. Check the following items: Servo piston assembly Brake band Oil pump assembly OK or NG OK: GO TO 7 . NG: Repair or replace damaged parts.
- DETECT MALFUNCTIONING ITEM Remove control valve. Refer to «CONTROL VALVE ASSEMBLY AND ACCUMULATORS»(ref-206576-S06596818422005112500000) . Check the following items: Shift valve B Shift solenoid valve B Pilot valve Pilot filter OK or NG OK: GO TO 7. NG: Repair or replace damaged parts.
- CHECK SYMPTOM Check again. OK or NG OK: INSPECTION END NG: GO TO 8.
- CHECK TCM INSPECTION Perform TCM input/output signal inspection. If NG, recheck TCM pin terminals for damage or loose connection with harness connector. OK or NG OK: INSPECTION END NG: Repair or replace damaged parts.
11. A/T Does Not Shift: D 3 --> D 4
SYMPTOM
- A/T does not shift from D 3 to D 4 at the specified speed.
- A/T must be warm before D 3 to D 4 shift will occur.
Scheme 769
Scheme 770
Scheme 771
Scheme 772
- CHECK SYMPTOM Are 7. Vehicle Does Not Creep Forward In D, 3, 2 Or 1 Position and 8. Vehicle Cannot Be Started From D 1 OK? Yes or No Yes: GO TO 2. No: Go to «7. VEHICLE DOES NOT CREEP FORWARD IN D, 3, 2 OR 1 POSITION»(ref-206576-S23379773682005112500000) and «8. VEHICLE CANNOT BE STARTED FROM»(ref-206576-S05728877162005112500000) D 1 .
- CHECK SELF-DIAGNOSTIC RESULTS With CONSULT-II Does self-diagnosis, after cruise test, show damage to any of the following circuits? Park/neutral position (PNP) switch Overdrive control switch A/T fluid temperature sensor Vehicle speed sensor. A/T (revolution sensor) Shift solenoid valve A or B Vehicle speed sensor. MTR Yes or No Yes: Check damaged circuit. Refer to «DTC P0705 PARK/NEUTRAL POSITION SWITCH»(ref-206576-S11249973802005112500000) , «DTC P0710 A/T FLUID TEMPERATURE SENSOR CIRCUIT»(ref-206576-S30730858012005112500000) , «DTC P0720 VEHICLE SPEED SENSOR. A/T (REVOLUTION SENSOR)»(ref-206576-S27465655622005112500000) , «DTC P0750 SHIFT SOLENOID VALVE A»(ref-206576-S26820878972005112500000) , «DTC P0755 SHIFT SOLENOID VALVE B»(ref-206576-S24011246872005112500000) or «DTC VEHICLE SPEED SENSOR MTR»(ref-206576-S21711658812005112500000) . No: GO TO 3.
- CHECK THROTTLE POSITION SENSOR [ACCELERATOR PEDAL POSITION (APP) SENSOR] Check throttle position sensor [accelerator pedal position (APP) sensor]. Refer to «SELF-DIAGNOSTICS - ALTIMA»(ref-135505) article. OK or NG OK: GO TO 4. NG: Repair or replace throttle position sensor [accelerator pedal position (APP) sensor].
- CHECK A/T FLUID CONDITION Remove oil pan. Check A/T fluid condition. OK or NG OK: GO TO 6 . NG: GO TO 5.
- DETECT MALFUNCTIONING ITEM Remove control valve. Refer to «CONTROL VALVE ASSEMBLY AND ACCUMULATORS»(ref-206576-S06596818422005112500000) . Check the following items: Shift valve B Overrun clutch control valve Shift solenoid valve B Pilot valve Pilot filter Disassemble A/T. Check the following items: Servo piston assembly Brake band Torque converter Oil pump assembly OK or NG OK: GO TO 7 . NG: Repair or replace damaged parts.
- DETECT MALFUNCTIONING ITEM Remove control valve. Refer to «CONTROL VALVE ASSEMBLY AND ACCUMULATORS»(ref-206576-S06596818422005112500000) . Check the following items: Shift valve B Overrun clutch control valve Shift solenoid valve B Pilot valve Pilot filter OK or NG OK: GO TO 7. NG: Repair or replace damaged parts.
- CHECK SYMPTOM Check again. OK or NG OK: INSPECTION END NG: GO TO 8.
- CHECK TCM INSPECTION Perform TCM input/output signal inspection. If NG, recheck TCM pin terminals for damage or loose connection with harness connector. OK or NG OK: INSPECTION END NG: Repair or replace damaged parts.
12. A/T Does Not Perform Lock-up
SYMPTOM
A/T does not perform lock-up at the specified speed.
Scheme 773
Scheme 774
- CHECK SELF-DIAGNOSTIC RESULTS Does self-diagnosis show damage to torque converter clutch solenoid valve circuit after cruise test? Yes or No Yes: Check torque converter clutch solenoid valve circuit. Refer to «DTC P0740 TORQUE CONVERTER CLUTCH SOLENOID VALVE»(ref-206576-S03404921042005112500000) . No: GO TO 2.
- CHECK THROTTLE POSITION SENSOR [ACCELERATOR PEDAL POSITION (APP) SENSOR] Check throttle position sensor [accelerator pedal position (APP) sensor]. Refer to «SELF-DIAGNOSTICS - ALTIMA»(ref-135505) article. OK or NG OK: GO TO 3. NG: Repair or replace throttle position sensor [accelerator pedal position (APP) sensor].
- DETECT MALFUNCTIONING ITEM Remove control valve. Refer to «CONTROL VALVE ASSEMBLY AND ACCUMULATORS»(ref-206576-S06596818422005112500000) . Check following items: Torque converter clutch control valve Torque converter relief valve Torque converter clutch solenoid valve Pilot valve Pilot filter OK or NG OK: GO TO 4. NG: Repair or replace damaged parts.
- CHECK SYMPTOM Check again. OK or NG OK: INSPECTION END NG: GO TO 5.
- CHECK TCM INSPECTION Perform TCM input/output signal inspection. If NG, recheck TCM pin terminals for damage or loose connection with harness connector. OK or NG OK: INSPECTION END NG: Repair or replace damaged parts.
13. A/T Does Not Hold Lock-up Condition
SYMPTOM
A/T does not hold lock-up condition for more than 30 seconds.
Scheme 775
Scheme 776
- CHECK SELF-DIAGNOSTIC RESULTS Does self-diagnosis show damage to engine speed signal circuit after cruise test? Yes or No Yes: Check engine speed signal circuit. Refer to «DTC P0725 ENGINE SPEED SIGNAL»(ref-206576-S01213351792005112500000) . No: GO TO 2.
- CHECK A/T FLUID CONDITION Remove oil pan. Check A/T fluid condition. OK or NG OK: GO TO 4 . NG: GO TO 3.
- DETECT MALFUNCTIONING ITEM Remove control valve assembly. Refer to «CONTROL VALVE ASSEMBLY AND ACCUMULATORS»(ref-206576-S06596818422005112500000) . Check the following items: Torque converter clutch control valve Pilot valve Pilot filter Disassemble A/T. Check torque converter and oil pump assembly. OK or NG OK: GO TO 5 . NG: Repair or replace damaged parts.
- DETECT MALFUNCTIONING ITEM Remove control valve assembly. Refer to «CONTROL VALVE ASSEMBLY AND ACCUMULATORS»(ref-206576-S06596818422005112500000) . Check the following items: Torque converter clutch control valve Pilot valve Pilot filter OK or NG OK: GO TO 5. NG: Repair or replace damaged parts.
- CHECK SYMPTOM Check again. OK or NG OK: INSPECTION END NG: GO TO 6.
- CHECK TCM INSPECTION Perform TCM input/output signal inspection. If NG, recheck TCM pin terminals for damage or loose connection with harness connector. OK or NG OK: INSPECTION END NG: Repair or replace damaged parts.
14. Lock-up Is Not Released
SYMPTOM
Lock-up is not released when accelerator pedal is released.
Scheme 777
- CHECK THROTTLE POSITION SENSOR [ACCELERATOR PEDAL POSITION (APP) SENSOR] CIRCUIT With CONSULT-II Does TCM INPUT SIGNALS in DATA MONITOR show damage to throttle position sensor [accelerator pedal position (APP) sensor] circuit? Without CONSULT-II Does self-diagnosis show damage to throttle position sensor [accelerator pedal position (APP) sensor] circuit? Yes or No Yes: Check throttle position sensor [accelerator pedal position (APP) sensor]. Refer to «SELF-DIAGNOSTICS - ALTIMA»(ref-135505) article. OK: GO TO 2.
- CHECK SYMPTOM Check again. OK or NG OK: INSPECTION END NG: GO TO 3.
- CHECK TCM INSPECTION Perform TCM input/output signal inspection. If NG, recheck TCM pin terminals for damage or loose connection with harness connector. OK or NG OK: INSPECTION END NG: Repair or replace damaged parts.
15. Engine Speed Does Not Return To Idle (Light Braking D 4 --> D 3 )
SYMPTOM
- Engine speed does not smoothly return to idle when A/T shifts from D 4 to D 3 .
- Vehicle does not decelerate by engine brake when A/T selector lever is in 3 position.
- Vehicle does not decelerate by engine brake when shifting A/T from D to 2 position.
Scheme 778
Scheme 779
Scheme 780
- CHECK SELF-DIAGNOSTIC RESULTS Does self-diagnosis show damage to overrun clutch solenoid valve circuit after cruise test? Yes or No Yes: Check overrun clutch solenoid valve circuit. Refer to «DTC P1760 OVERRUN CLUTCH SOLENOID VALVE»(ref-206576-S15575610622005112500000) . No: GO TO 2.
- CHECK THROTTLE POSITION SENSOR [ACCELERATOR PEDAL POSITION (APP) SENSOR] Check throttle position sensor [accelerator pedal position (APP) sensor]. Refer to «SELF-DIAGNOSTICS - ALTIMA»(ref-135505) article. OK or NG OK: GO TO 3. NG: Repair or replace throttle position sensor [accelerator pedal position (APP) sensor].
- CHECK A/T FLUID CONDITION Remove oil pan. Check A/T fluid condition. OK or NG OK: GO TO 5 . NG: GO TO 4.
- DETECT MALFUNCTIONING ITEM Remove control valve assembly. Refer to «CONTROL VALVE ASSEMBLY AND ACCUMULATORS»(ref-206576-S06596818422005112500000) . Check the following items: Overrun clutch control valve Overrun clutch reducing valve Overrun clutch solenoid valve Disassemble A/T. Check the following items: Overrun clutch assembly Oil pump assembly OK or NG OK: GO TO 6 . NG: Repair or replace damaged parts.
- DETECT MALFUNCTIONING ITEM Remove control valve assembly. Refer to «CONTROL VALVE ASSEMBLY AND ACCUMULATORS»(ref-206576-S06596818422005112500000) . Check the following items: Overrun clutch control valve Overrun clutch reducing valve Overrun clutch solenoid valve OK or NG OK: GO TO 6. NG: Repair or replace damaged parts.
- CHECK SYMPTOM Check again. OK or NG OK: INSPECTION END NG: GO TO 7.
- CHECK TCM INSPECTION Perform TCM input/output signal inspection. If NG, recheck TCM pin terminals for damage or loose connection with harness connector. OK or NG OK: INSPECTION END NG: Repair or replace damaged parts.
16. Vehicle Does Not Start From D 1
SYMPTOM
Vehicle does not start from D 1 on Cruise test - Part 2.
Scheme 781
- CHECK SELF-DIAGNOSTIC RESULTS Does self-diagnosis show damage to vehicle speed sensor. A/T (revolution sensor), shift solenoid valve A, B or vehicle speed sensor. MTR after cruise test? Yes or No Yes: Check damaged circuit. Refer to «DTC P0720 VEHICLE SPEED SENSOR. A/T (REVOLUTION SENSOR)»(ref-206576-S27465655622005112500000) , «DTC P0750 SHIFT SOLENOID VALVE A»(ref-206576-S26820878972005112500000) , «DTC P0755 SHIFT SOLENOID VALVE B»(ref-206576-S24011246872005112500000) or «DTC VEHICLE SPEED SENSOR MTR»(ref-206576-S21711658812005112500000) . No: GO TO 2.
- CHECK SYMPTOM Check again. OK or NG OK: Go to «8. VEHICLE CANNOT BE STARTED FROM»(ref-206576-S05728877162005112500000) D 1 . NG: GO TO 3.
- CHECK TCM INSPECTION Perform TCM input/output signal inspection. If NG, recheck TCM pin terminals for damage or loose connection with harness connector. OK or NG OK: INSPECTION END NG: Repair or replace damaged parts.
17. A/T Does Not Shift: D 4 --> 3 3 , When A/T Selector Lever D --> 3
SYMPTOM
A/T does not shift from D 4 to 3 3 when changing A/T selector lever from D --> 3 position.
Scheme 782
- CHECK 3 POSITION SWITCH CIRCUIT With CONSULT-II Does TCM INPUT SIGNALS in DATA MONITOR show damage to 3 position switch circuit? Without CONSULT-II Does self-diagnosis show damage to 3 position switch circuit? Yes or No Yes: Check 3 position switch circuit. Refer to «DTC P0705 PARK/NEUTRAL POSITION SWITCH»(ref-206576-S11249973802005112500000) . No: Go to «10. A/T DOES NOT SHIFT»(ref-206576-S02927353442005112500000) D 2 --> D 3 .
18. A/T Does Not Shift: 3 3 --> 2 2 , When Selector Lever 3 --> 2 Position
SYMPTOM
A/T does not shift from 3 3 to 2 2 when changing selector lever from 3 to 2 position .
Scheme 783
- CHECK PARK/NEUTRAL POSITION (PNP) SWITCH CIRCUIT With CONSULT-II Does TCM INPUT SIGNALS in DATA MONITOR show damage to park/neutral position (PNP) switch circuit? Without CONSULT-II Does self-diagnosis show damage to park/neutral position (PNP) switch circuit? Yes or No Yes: Check park/neutral position (PNP) switch circuit. Refer to «DTC P0705 PARK/NEUTRAL POSITION SWITCH»(ref-206576-S11249973802005112500000) . No: Go to «9. A/T DOES NOT SHIFT»(ref-206576-S20015328332005112500000) D 1 --> D 2 OR DOES NOT KICKDOWN: D 4 --> D 2 .
19. A/T Does Not Shift: 2 2 --> 1 1 , When Selector Lever 2 --> 1 Position
SYMPTOM
A/T does not shift from 2 2 to 1 1 when changing selector lever from 2 to 1 position .
Scheme 784
Scheme 785
- CHECK PARK/NEUTRAL POSITION (PNP) SWITCH CIRCUIT With CONSULT-II Does TCM INPUT SIGNALS in DATA MONITOR show damage to park/neutral position (PNP) switch circuit? Without CONSULT-II Does self-diagnosis show damage to park/neutral position (PNP) switch circuit? Yes or No Yes: Check park/neutral position (PNP) switch circuit. Refer to «DTC P0705 PARK/NEUTRAL POSITION SWITCH»(ref-206576-S11249973802005112500000) . No: GO TO 2.
- CHECK SYMPTOM Check again. OK or NG OK: INSPECTION END NG: GO TO 3.
- CHECK TCM INSPECTION Perform TCM input/output signal inspection. If NG, recheck TCM pin terminals for damage or loose connection with harness connector. OK or NG OK: INSPECTION END NG: Repair or replace damaged parts.
20. Vehicle Does Not Decelerate By Engine Brake
SYMPTOM
Vehicle does not decelerate by engine brake when shifting from 2 2 (1 2 ) to 1 1 .
- CHECK SYMPTOM Is 6. Vehicle Does Not Creep Backward In R Position OK? Yes or No Yes: Go to «15. Engine Speed Does Not Return To Idle»(ref-206576-S28593157782005112500000) (Light Braking D 4 --> D 3 ). No: Go to «6. VEHICLE DOES NOT CREEP BACKWARD IN R POSITION»(ref-206576-S18911171622005112500000) .
Oil Pump Housing, Oil Pump Cover, Inner Gear and Outer Gear
- Check for wear or damage.
Scheme 786
Scheme 787
- Measure side clearance of inner and outer gears in at least four places around each outside edge. Maximum measured values should be within specified positions. Standard clearance: 0.030 - 0.050 mm (0.0012 - 0.0020 in)
- If clearance is less than standard, select inner and outer gear as a set so that clearance is within specifications. Inner and outer gear: Refer to «SERVICE DATA AND SPECIFICATIONS (SDS)»(ref-206576-S11622756292005112500000) .
- If clearance is more than standard, replace whole oil pump assembly except oil pump cover.
- Measure clearance between outer gear and oil pump housing. Standard clearance: 0.111 - 0.181 mm (0.0044 - 0.0071 in) Allowable limit: 0.181 mm (0.0071 in)
- If not within allowable limit, replace whole oil pump assembly except oil pump cover.
Scheme 788
- Measure clearance between seal ring and ring groove. Standard clearance: 0.1 - 0.25 mm (0.0039 - 0.0098 in) Allowable limit: 0.25 mm (0.0098 in)
- If not within allowable limit, replace oil pump cover assembly.
Scheme 789
Scheme 790
Scheme 791
Scheme 792
Scheme 793
- Install oil seal on oil pump housing.
- Install O-ring on oil pump housing. Apply ATF to O-ring.
- Install inner and outer gears on oil pump housing. Be careful of direction of inner gear.
- Install oil pump cover on oil pump housing. Wrap masking tape around splines of oil pump cover assembly to protect seal. Position oil pump cover assembly on oil pump housing assembly, then remove masking tape. Tighten bolts in a crisscross pattern. Tighten oil pump cover bolts to the specified torque. Refer to «COMPONENTS»(ref-206576-S14285368982005112500000)
- Install new seal rings carefully after packing ring groove with petroleum jelly. Do not spread gap of seal ring excessively while installing. The ring may be deformed.
Scheme 794
Oil Strainer
Check wire netting of oil strainer for damage.
Scheme 795
- Measure resistance.
- For shift solenoid valve A, refer to «DIAGNOSTIC PROCEDURE (A)»(ref-206576-S35300947262005112500000) .
- For shift solenoid valve B, refer to «DIAGNOSTIC PROCEDURE (B)»(ref-206576-S29475441052005112500000) .
- For line pressure solenoid valve, refer to «DIAGNOSTIC PROCEDURE (Line Pressure)»(ref-206576-S33418175982005112500000) .
- For torque converter clutch solenoid valve, refer to «DIAGNOSTIC PROCEDURE (TCC)»(ref-206576-S40931531332005112500000) .
- For overrun clutch solenoid valve, refer to «DIAGNOSTIC PROCEDURE (Overrun Clutch)»(ref-206576-S11995234812005112500000) .
Scheme 796
- Check springs for damage or deformation.
- Measure free length and outer diameter. Inspection standard: Refer to «CONTROL VALVES»(ref-206576-S03726964442005112500000)
Scheme 797
Scheme 798
Scheme 799
Scheme 800
Scheme 801
Scheme 802
Scheme 803
Scheme 804
Scheme 805
Scheme 806
Scheme 807
Scheme 808
Scheme 809
Scheme 810
Scheme 811
Scheme 812
Scheme 813
- Install upper, inter and lower body. Place oil circuit of upper body face up. Install steel balls in their proper positions. Install upper separating gasket, upper inter separating gasket and upper separating plate in order shown in illustration. Install reamer bolts f from bottom of upper body. Using reamer bolts as guides, install separating plate and gaskets as a set. Install pilot filter. Place lower body as shown in illustration (side of inter body face up). Install steel balls in their proper positions. Install inter body on upper body using reamer bolts f as guides. Be careful not to dislocate or drop steel balls. Install check balls and oil cooler relief valve springs in their proper positions in lower body. Install lower separating gasket, lower inter separating gasket and lower separating plate in order shown in illustration. Install bolts e from bottom of lower body. Using bolts e as guides, install separating plate and gaskets as a set. Temporarily install support plates on lower body. Install lower body on inter body using reamer bolts f as guides and tighten reamer bolts f slightly.
- Install O-rings to solenoid valves and terminal body. Apply ATF to O-rings.
- Install and tighten bolts. Bolt length, number and location : Install and tighten bolts b to specified torque. : 7 - 9 N.m (0.7 - 0.9 kg-m, 61 - 78 in-lb) Install solenoid valve assembly and line pressure solenoid valve to lower body. Set oil strainer, then tighten bolts a, c, d and nuts f to specified torque. : 7 - 9 N.m (0.7 - 0.9 kg-m, 61 - 78 in-lb) Tighten bolts e to specified torque. : 3.4 - 4.4 N.m (0.35 - 0.45 kg-m, 30.4 - 39.1 in-lb)
COMPONENTS
Apply ATF to all components before installation.
Scheme 814
Scheme 815
Scheme 816
Scheme 817
Scheme 818
- Remove valves at retainer plates. Do not use a magnetic pick-up tool. Use a screwdriver to remove retainer plates. Remove retainer plates while holding spring, plugs or sleeves. Remove plugs slowly to prevent internal parts from jumping out.
- Place mating surface of valve body face down, and remove internal parts. If a valve is hard to remove, place valve body face down and lightly tap it with a soft hammer. Be careful not to drop or damage valves and sleeves.
Scheme 819
- Measure free length and outer diameter of each valve spring. Also check for damage or deformation. Inspection standard: Refer to «CONTROL VALVES»(ref-206576-S03726964442005112500000)
- Replace valve springs if deformed or fatigued.
Control Valves
- Check sliding surfaces of valves, sleeves and plugs.
Scheme 820
- Lay control valve body down when installing valves. Do not stand the control valve body upright.
Scheme 821
Scheme 822
- Lubricate the control valve body and all valves with ATF. Install control valves by sliding them carefully into their bores. Be careful not to scratch or damage valve body. Wrap a small screwdriver with vinyl tape and use it to insert the valves into their proper positions.
Scheme 823
- Install 1-2 accumulator valve. Align 1-2 accumulator retainer plate from opposite side of control valve body.
- Install return spring, 1-2 accumulator piston and plug.
Scheme 824
- Install retainer plates. While pushing plug or return spring, install retainer plate.
Scheme 825
Scheme 826
- Install proper retainer plates.
Refer to COMPONENTS .
Apply ATF to all components before installation .
Scheme 827
Scheme 828
- Remove valves at retainer plate. For removal procedures, refer to «COMPONENTS»(ref-206576-S36909389142005112500000) .
Scheme 829
- Check each valve spring for damage or deformation. Also measure free length and outer diameter. Inspection standard: Refer to «CONTROL VALVES»(ref-206576-S03726964442005112500000) .
- Replace valve springs if deformed or fatigued.
- Check sliding surfaces of control valves, sleeves and plugs for damage.
Scheme 830
- Install control valves. For installation procedures, refer to «COMPONENTS»(ref-206576-S36909389142005112500000) .
Scheme 831
Scheme 832
- Install proper retainer plates. Refer to «COMPONENTS»(ref-206576-S36909389142005112500000) .
Scheme 833
Scheme 834
Scheme 835
Scheme 836
Scheme 837
- Check operation of reverse clutch Install seal ring onto drum support of oil pump cover and install reverse clutch assembly. Apply compressed air to oil hole. Check to see that retaining plate moves to snap ring. If retaining plate does not contact snap ring: D-ring might be damaged. Oil seal might be damaged. Fluid might be leaking past piston check ball.
- Remove snap ring.
- Remove drive plates, driven plates, retaining plate, and dish plates.
- Set Tool on spring retainer and remove snap ring from reverse clutch drum while compressing return springs. Set Tool directly over springs . Do not expand snap ring excessively.
- Remove spring retainer and return springs.
- Remove piston from reverse clutch drum by turning it.
- Remove D-ring and oil seal from piston.
Reverse Clutch Snap Ring, Spring Retainer and Return Springs
- Check for deformation, fatigue or damage. If necessary, replace.
Scheme 838
- Check facing for burns, cracks or damage.
- Measure thickness of facing. Thickness of drive plate: Standard value: 1.6 mm (0.063 in) Wear limit: 1.4 mm (0.055 in)
- If not within wear limit, replace.
Scheme 839
- Check for deformation or damage.
- Measure thickness of dish plate. Thickness of dish plate: 3.08 mm (0.1213 in)
- If deformed or fatigued, replace.
Reverse Clutch Piston
- Make sure that check balls are not fixed.
- Apply compressed air to check ball oil hole opposite the return spring. Make sure there is no air leakage.
- Apply compressed air to oil hole on return spring side to make sure that air leaks past ball.
Scheme 840
Scheme 841
Scheme 842
Scheme 843
Scheme 844
Scheme 845
- Install D-ring and oil seal on piston. Take care with the direction of oil seal . Apply ATF to both parts .
- Install piston assembly by turning it slowly. Apply ATF to inner surface of drum.
- Install return springs and spring retainer on piston.
- Set Tool on spring retainer and install snap ring while compressing return springs. Set Tool directly over return springs.
- Install drive plates, driven plates, retaining plate and dish plates. Take care with order of plates .
- Install snap ring.
- Measure clearance between retaining plate and snap ring. If not within allowable limit, select proper retaining plate. Specified clearance Standard: 0.5 - 0.8 mm (0.020 - 0.031 in) Allowable limit: 1.2 mm (0.047 in) Retaining plate: Refer to «O-RING»(ref-206576-S04437953902005112500000) . REVERSE CLUTCH .
- Check operation of reverse clutch.
Scheme 846
Scheme 847
Scheme 848
Scheme 849
Scheme 850
Scheme 851
Scheme 852
- Check operation of high clutch. Apply compressed air to oil hole of input shaft with nylon cloth. Stop up hole on opposite side of input shaft with nylon cloth. Check to see that retaining plate moves to snap ring. If retaining plate does not contact snap ring: D-ring might be damaged. Oil seal might be damaged. Fluid might be leaking past piston check ball.
- Remove seal rings from input shaft. Always replace when removed.
- Remove snap ring.
- Remove drive plates, driven plates and retaining plate.
- Set Tool on spring retainer and remove snap ring from high clutch drum while compressing return springs. Set Tool directly over springs . Do not expand snap ring excessively . Remove spring retainer and return springs. Remove piston from high clutch drum by turning it. Remove D-rings from piston.
High Clutch Snap Ring, Spring Retainer and Return Springs
- Check for deformation, fatigue or damage. If necessary, replace.
- When replacing spring retainer and return springs, replace them as a set.
Scheme 853
- Check facing for burns, cracks or damage.
- Measure thickness of facing. Thickness of drive plate : Standard value: 1.6 mm (0.063 in) Wear limit: 1.4 mm (0.055 in)
- If not within wear limit, replace.
Scheme 854
- Make sure that check balls are not fixed.
- Apply compressed air to check ball oil hole opposite the return spring. Make sure there is no air leakage.
- Apply compressed air to oil hole on return spring side to make sure that air leaks past ball.
Scheme 855
- Install new seal rings onto input shaft.
- Measure clearance between seal ring and ring groove. Standard clearance: 0.08 - 0.23 mm (0.0031 - 0.0091 in) Allowable limit: 0.23 mm (0.0091 in)
- If not within allowable limit, replace input shaft assembly.
Scheme 856
Scheme 857
Scheme 858
Scheme 859
Scheme 860
Scheme 861
Scheme 862
Scheme 863
Scheme 864
Scheme 865
- Install D-rings on piston. Apply ATF to both parts .
- Install piston assembly by turning it slowly. Apply ATF to inner surface of drum.
- Install return springs and spring retainer on piston.
- Set Tool on spring retainer and install snap ring while compressing return springs. Set Tool directly over return springs. Do not align snap ring gap with spring retainer stopper.
- Install drive plates, driven plates and retaining plate. Take care with the order and direction of plates .
- Install snap ring.
- Measure clearance between retaining plate and snap ring. If not within allowable limit, select proper retaining plate. Specified clearance Standard: 1.8 - 2.2 mm (0.071 - 0.087 in) Allowable limit: 2.8 mm (0.110 in) Retaining plate : Refer to «HIGH CLUTCH - QR25DE MODEL»(ref-206576-S39270737822005112500000) . : Refer to «HIGH CLUTCH-VQ35DE MODEL»(ref-206576-S19175848892005112500000) .
- Check operation of high clutch.
- Install seal rings to input shaft. Apply petroleum jelly to seal rings. Always replace when removed. Roll paper around seal rings to prevent seal rings from spreading .
Scheme 866
Scheme 867
Scheme 868
Scheme 869
Scheme 870
Scheme 871
Scheme 872
Scheme 873
- Check operation of forward clutch and overrun clutch. Install bearing retainer on forward clutch drum. Apply compressed air to oil hole of forward clutch drum. Check to see that retaining plate moves to snap ring. If retaining plate does not contact snap ring: D-ring might be damaged. Oil seal might be damaged. Fluid might be leaking past piston check ball.
- Remove snap ring for forward clutch.
- Remove drive plates, driven plates, retaining plate and dish plate for forward clutch.
- Remove snap ring for overrun clutch.
- Remove drive plates, driven plates, retaining plate and dish plate for overrun clutch.
- Set Tool on spring retainer and remove snap ring from forward clutch drum while compressing return springs. Set Tool directly over return springs. Do not expand snap ring excessively .
- Remove spring retainer and return springs. Do not remove return springs from spring retainer . Remove forward clutch piston with overrun clutch piston from forward clutch drum by turning it. Remove overrun clutch piston from forward clutch piston by turning it. Remove D-rings and oil seals from forward clutch piston and overrun clutch piston.
Snap Rings, Spring Retainer and Return Springs
- Check for deformation, fatigue or damage.
- Replace if necessary.
- When replacing spring retainer and return springs, replace them as a set .
Scheme 874
- Check facing for burns, cracks or damage.
- Measure thickness of facing. Thickness of drive plate : Forward clutch Standard value: 1.6 mm (0.063 in) Wear limit: 1.4 mm (0.055 in) Overrun clutch Standard value: 1.6 mm (0.063 in) Wear limit: 1.4 mm (0.055 in)
- If not within wear limit, replace.
Scheme 875
- Check for deformation or damage.
- Measure thickness of dish plate. Thickness of dish plate Forward clutch: 2.7 mm (0.106 in) Overrun clutch: 2.7 mm (0.106 in)
- If deformed or fatigued, replace.
Scheme 876
- Make sure that check balls are not fixed.
- Apply compressed air to check ball oil hole from outside of forward clutch drum. Make sure air leaks past ball.
- Apply compressed air to oil hole from inside of forward clutch drum. Make sure there is no air leakage.
Scheme 877
- Make sure that check balls are not fixed.
- Apply compressed air to check ball oil hole opposite the return spring. Make sure there is no air leakage.
- Apply compressed air to oil hole on return spring side. Make sure that air leaks past ball.
Scheme 878
Scheme 879
Scheme 880
Scheme 881
Scheme 882
Scheme 883
Scheme 884
Scheme 885
Scheme 886
Scheme 887
Scheme 888
Scheme 889
- Install D-rings and oil seals on forward clutch piston and overrun clutch piston. Take care with direction of oil seal . Apply ATF to both parts .
- Install overrun clutch piston assembly on forward clutch piston by turning it slowly. Apply ATF to inner surface of forward clutch piston .
- Install forward clutch piston assembly on forward clutch drum by turning it slowly. Apply ATF to inner surface of drum.
- Install return spring on overrun clutch piston. Align the mark on spring retainer with check ball in overrun clutch piston.
- Set Tool on spring retainer and install snap ring while compressing return springs. Set Tool directly over return springs. Do not align snap ring gap with spring retainer stopper.
- Install drive plates, driven plates, retaining plate and dish plate for overrun clutch. Take care with order of plates .
- Install snap ring for overrun clutch.
- Measure clearance between overrun clutch retaining plate and snap ring. If not within allowable limit, select proper retaining plate. Specified clearance Standard: 0.7 -1.1 mm (0.028 - 0.043 in) Allowable limit: 1.7 mm (0.067 in) Overrun clutch retaining plate Refer to «OVERRUN CLUTCH»(ref-206576-S06730942092005112500000) .
- Install drive plates, driven plates, retaining plate and dish plate for forward clutch. Take care with order of plates .
- Install snap ring for forward clutch.
- Measure clearance between forward clutch retaining plate and snap ring. If not within allowable limit, select proper retaining plate. Specified clearance Standard: 0.45 - 0.85 mm (0.0177-0.0335 in) Allowable limit: 1.85 mm (0.0728 in) Forward clutch retaining plate: Refer to . «HIGH CLUTCH - QR25DE MODEL»(ref-206576-S39270737822005112500000) .
- Check operation of forward clutch.
- Check operation of overrun clutch.
Scheme 890
Scheme 891
Scheme 892
Scheme 893
- Check operation of low & reverse brake. Apply compressed air to oil hole of transmission case. Check to see that retaining plate moves to snap ring. If retaining plate does not contact snap ring: D-ring might be damaged. Fluid might be leaking past piston check ball.
- In order to remove piston, apply compressed air to oil hole of retainer while holding piston. Apply air gradually and allow piston to come out evenly.
- Remove D-rings from piston.
Low and Reverse Brake Snap Ring, Spring Retainer and Return Springs
- Check for deformation, fatigue or damage. If necessary, replace.
- When replacing spring retainer and return springs, replace them as a set .
Scheme 894
- Check facing for burns, cracks or damage.
- Measure thickness of facing. Thickness of drive plate Standard value: 1.8 mm (0.071 in) Wear limit: 1.6 mm (0.063 in)
- If not within wear limit, replace.
Scheme 895
Scheme 896
Scheme 897
Scheme 898
Scheme 899
- Install D-rings on piston. Apply ATF to both parts.
- Set and align piston with retainer. This operation is required in order to engage the protrusions of piston to return springs correctly . Further procedures are given in ASSEMBLY .
- Install driven plates, drive plates, retaining plate and dish plate on transmission case. Take care with order of plates and direction of dish plate .
- Install snap ring.
- Measure clearance between driven plate and transmission case. If not within allowable limit, select proper retaining plate. (front side) Specified clearance Standard: 1.7 - 2.1 mm (0.067 - 0.083 in) Allowable limit: 3.3 mm (0.130 in) Retaining plate Refer to «LOW & REVERSE BRAKE»(ref-206576-S15271543352005112500000) .
Scheme 900
Scheme 901
Scheme 902
Scheme 903
Scheme 904
Scheme 905
Scheme 906
- Remove overrun clutch hub and thrust washer from forward clutch hub.
- Remove forward clutch hub from rear internal gear.
- Remove bearing from rear internal gear.
- Remove thrust washer from rear internal gear.
- Remove bearing from forward one-way clutch.
- Remove forward one-way clutch from forward clutch hub.
Scheme 907
- Check rubbing surfaces for wear or damage.
Scheme 908
- Check bearings for deformation and damage.
- Check forward one-way clutch for wear and damage.
Scheme 909
Scheme 910
Scheme 911
Scheme 912
Scheme 913
Scheme 914
- Install forward one-way clutch on forward clutch. Take care with the direction of forward one-way clutch .
- Install bearing on forward one-way clutch. Apply petroleum jelly to bearing .
- Install thrust washer on rear internal gear. Apply petroleum jelly to thrust washer . Align hooks of thrust washer with holes of rear internal gear .
- Install bearing on rear internal gear. Apply petroleum jelly to bearing .
- Install thrust washer and overrun clutch hub. Apply petroleum jelly to thrust washer . Align hooks of thrust washer with holes of overrun clutch hub . Align projections of rear internal gear with holes of overrun clutch hub .
- Install forward clutch hub on rear internal gear. Check operation of forward one-way clutch . Hold rear internal gear and turn forward clutch hub . Check forward clutch hub for correct locking and unlocking directions . If not as shown in illustration, check installation direction of forward one-way clutch .
Scheme 915
Scheme 916
Scheme 917
Scheme 918
Scheme 919
Scheme 920
Scheme 921
Scheme 922
Scheme 923
- Remove seal rings from output shaft and bearing retainer.
- Remove output shaft bearing with screwdrivers. Always replace bearing with a new one when removed . Do not damage output shaft .
- Remove snap ring from bearing retainer.
- Remove needle bearing from bearing retainer.
- Remove idler gear bearing inner race from idler gear.
- Remove idler gear bearing outer race from transmission case.
- Press out reduction pinion gear bearing inner race from reduction pinion gear.
- Remove reduction pinion gear bearing outer race from transmission case.
Output Shaft, Idler Gear and Reduction Pinion Gear
- Check shafts for cracks, wear or bending.
- Check gears for wear, chips and cracks.
Scheme 924
- Make sure bearings roll freely and are free from noise, cracks, pitting or wear.
- When replacing taper roller bearing, replace outer and inner race as a set .
Scheme 925
- Install new seal rings to output shaft.
- Measure clearance between seal ring and ring groove of output shaft. Standard clearance: 0.10 - 0.25 mm (0.0039 - 0.0098 in) Allowable limit: 0.25 mm (0.0098 in)
- If not within allowable limit, replace output shaft.
- Install new seal rings to bearing retainer.
- Measure clearance between seal ring and ring groove of bearing retainer. Standard clearance: 0.10 - 0.30 mm (0.0039 - 0.0118 in) Allowable limit: 0.30 mm (0.0118 in)
- If not within allowable limit, replace bearing retainer.
Scheme 926
Scheme 927
Scheme 928
Scheme 929
Scheme 930
Scheme 931
Scheme 932
Scheme 933
- Press reduction pinion gear bearing inner race on reduction pinion gear.
- Install reduction pinion gear bearing outer race on transmission case. : 109 -123 N.m (11.1 -12.5 kg-m, 80 - 90 ft-lb)
- Press idler gear bearing inner race on idler gear.
- Install idler gear bearing outer race on transmission case.
- Press output shaft bearing on output shaft.
- Press needle bearing on bearing retainer.
- Install snap ring to bearing retainer.
- After packing ring grooves with petroleum jelly, carefully install new seal rings on output shaft and bearing retainer.
Scheme 934
- Roll paper around seal rings to prevent seal rings from spreading .
Scheme 935
Scheme 936
Scheme 937
Scheme 938
Scheme 939
Scheme 940
Scheme 941
Scheme 942
Scheme 943
Scheme 944
Scheme 945
- Remove band servo piston fixing bolts.
- Apply compressed air to oil hole in transmission case to remove O/D servo piston retainer and band servo piston assembly. Hold band servo piston assembly with a rag or nylon waste .
- Apply compressed air to oil hole in O/D servo piston retainer to remove O/D servo piston from retainer. Hold O/D band servo piston while applying compressed air .
- Remove D-ring from O/D servo piston.
- Remove O-rings from O/D servo piston retainer.
- Remove band servo piston assembly from servo piston retainer by pushing it forward.
- Place piston stem end on a wooden block. While pushing servo piston spring retainer down, remove E-ring.
- Remove O/D servo return spring, band servo thrust washer and band servo piston stem from band servo piston.
- Remove O-rings from servo piston retainer.
- Remove D-rings from band servo piston.
Pistons, Retainers and Piston Stem
- Check frictional surfaces for abnormal wear or damage.
Scheme 946
- Check for deformation or damage.
- Measure free length and outer diameter. Inspection standard: Refer to «BAND SERVO»(ref-206576-S11788969202005112500000) .
Scheme 947
Scheme 948
Scheme 949
Scheme 950
Scheme 951
Scheme 952
Scheme 953
Scheme 954
Scheme 955
Scheme 956
Scheme 957
- Install D-rings to servo piston retainer. Apply ATF to D-rings . Pay attention to position of each O-ring .
- Install band servo piston stem, band servo thrust washer, O/D servo return spring and spring retainer to band servo piston.
- Place piston stem end on a wooden block. While pushing servo piston spring retainer down, install E-ring.
- Install O-rings to servo piston retainer. Apply ATF to O-rings . Pay attention to position of each O-ring .
- Install band servo piston assembly to servo piston retainer by pushing it inward.
- Install D-ring to O/D servo piston. Apply ATF to D-ring .
- Install O-rings to O/D servo piston retainer. Apply ATF to O-rings . Pay attention to position of each O-ring .
- Install O/D servo piston to O/D servo piston retainer.
- Install band servo piston assembly and 2nd servo return spring to transmission case. Apply ATF to O-ring of band servo piston and transmission case .
- Install O/D servo piston assembly to transmission case. Apply ATF to O-ring of band servo piston and transmission case .
- Install O/D servo piston retainer to transmission case. Refer to «COMPONENTS»(ref-206576-S08688430752005112500000) .
Scheme 958
Scheme 959
Scheme 960
Scheme 961
Scheme 962
Scheme 963
Scheme 964
- Remove final gear.
- Press out differential side bearings. Be careful not to mix up the right and left bearings .
- Remove differential side bearing outer race and side bearing adjusting shim from transmission case.
- Remove speedometer drive gear.
- Drive out pinion mate shaft lock pin.
- Draw out pinion mate shaft lock pin.
- Remove pinion mate gears and side gears.
Scheme 965
- Check mating surfaces of differential case, side gears and pinion mate gears.
- Check washers for wear.
Scheme 966
- Make sure bearings roll freely and are free from noise, cracks, pitting or wear.
- When replacing taper roller bearing, replace outer and inner race as a set .
Scheme 967
Scheme 968
Scheme 969
Scheme 970
Scheme 971
Scheme 972
Scheme 973
Scheme 974
- Attach side gear thrust washers to side gears, then install pinion mate thrust washers and pinion mate gears in place. Apply ATF to any parts .
- Insert pinion mate shaft. When inserting, be careful not to damage pinion mate thrust washers .
- Measure clearance between side gear and differential case with washers following the procedure below: Set Tool and dial indicator on side gear. Move side gear up and down to measure dial indicator deflection. Always measure indicator deflection on both side gears. Clearance between side: 0.1 - 0.2 mm Gear and differential (0.004 - 0.008 in) Case with washer If not within specification, adjust clearance by changing thickness of differential side gear thrust washers. Differential side gear thrust washers: Refer to «DIFFERENTIAL SIDE GEAR THRUST WASHERS»(ref-206576-S11533587212005112500000) .
- Install lock pin. Make sure that lock pin is flush with case .
- Install speedometer drive gear on differential case. Align the projection of speedometer drive gear with the groove of differential case .
- Press on differential side bearings.
- Install final gear and tighten fixing bolts in a crisscross pattern. Tighten final gear bolts to the specified torque. Refer to «COMPONENTS»(ref-206576-S16226943522005112500000) .
Scheme 975
Scheme 976
Scheme 977
Scheme 978
- Install differential side oil seals on transmission case and converter housing.
- Install parking actuator support to transmission case. Tighten parking actuator support bolts to the specified torque. Refer to «OVERHAUL»(ref-206576-S37744387762005112500000) . Pay attention to direction of parking actuator support . Install parking pawl on transmission case and fix it with parking shaft. Install return spring.
Scheme 979
Scheme 980
Scheme 981
Scheme 982
Scheme 983
- Install differential side bearing outer race without adjusting shim on transmission case.
- Install differential side bearing outer race on converter housing.
- Place final drive assembly on transmission case.
- Install transmission case on converter housing. Tighten transmission case fixing bolts to the specified torque. Refer to «OVERHAUL»(ref-206576-S37744387762005112500000) .
- Attach dial indicator on differential case at converter housing side.
- Insert Tool into differential side gear from transmission case side.
- Move Tool up and down and measure dial indicator deflection.
- Select proper thickness of differential side bearing adjusting shim(s). Suitable shim thickness = Dial indicator deflection + Specified bearing preload Differential side bearing preload adjusting shim: Refer to «DIFFERENTIAL SIDE GEAR THRUST WASHERS»(ref-206576-S11533587212005112500000) . Bearing preload: 0.05 - 0.09 mm (0.0020 - 0.0035 in)
- Remove converter housing from transmission case.
- Remove final drive assembly from transmission case.
- Remove differential side bearing outer race from transmission case.
- Reinstall differential side bearing outer race and shim(s) selected from SDS table on transmission case.
- Reinstall converter housing on transmission case and tighten transmission case fixing bolts to the specified torque. Refer to «OVERHAUL»(ref-206576-S37744387762005112500000) .
- Insert Tool and measure turning torque of final drive assembly. Turn final drive assembly in both directions several times to seat bearing rollers correctly . Turning torque of final drive assembly: 0.78 -1.37 N.m (8.0 -14.0 kg-cm (6.9 -12.2 in-lb) New bearing) When old bearing is used again, turning torque will be slightly less than the above . Make sure torque is close to the specified range . Preload adapter: RE4F04B-(J39713)
Scheme 984
Scheme 985
Scheme 986
Scheme 987
Scheme 988
Scheme 989
Scheme 990
Scheme 991
Scheme 992
Scheme 993
- Remove transmission case and final drive assembly from converter housing.
- Select proper thickness of reduction pinion gear bearing adjusting shim using the following procedures. Place reduction pinion gear on transmission case as shown.
- Place idler gear bearing on transmission case.
- Measure dimensions B C and D and calculate dimension A. A = D - (B + C) A : Distance between the surface of idler gear bearing inner race and the adjusting shim mating surface of reduction pinion gear. Measure dimension B between the end of reduction pinion gear and the surface of transmission case. Measure dimension B in at least two places . Measure dimension C between the surface of idler gear bearing inner race and the surface of transmission case. Measure dimension C in at least two places . Measure dimension D between the end of reduction pinion gear and the adjusting shim mating surface of reduction pinion gear. Measure dimension D in at least two places . Calculate dimension A. A = D-(B + C)
- Measure dimension E between the end of idler gear and the idler gear bearing inner race mating surface of idler gear. Measure dimension E in at least two places .
- Select proper thickness of reduction pinion gear bearing adjusting shim. Proper shim thickness = A - E - 0.05 mm (0.0020 in)* (*: Bearing preload) Reduction pinion gear bearing adjusting shim: Refer to «REDUCTION PINION GEAR BEARING ADJUSTING SHIMS»(ref-206576-S08420962222005112500000) .
- Install reduction gear and reduction gear bearing adjusting shim selected in step 2-e on transmission case.
- Press idler gear bearing inner race on idler gear.
- Press idler gear on reduction gear. Press idler gear until idler gear fully contacts adjusting shim .
- Tighten idler gear lock nut to the specified torque. Refer to «OVERHAUL»(ref-206576-S37744387762005112500000) . Lock idler gear with parking pawl when tightening lock nut .
- Measure turning torque of reduction pinion gear. When measuring turning torque, turn reduction pinion gear in both directions several times to seat bearing rollers correctly . Turning torque of reduction pinion gear: 0.05 - 0.39 N.m (0.5 - 4.0 kg-cm, 0.43 - 3.47 in-lb) If turning torque is out of specification, decrease or increase thickness of reduction pinion gear bearing adjusting shim .
- After properly adjusting turning torque, clinch idler gear lock nut as shown.
Scheme 994
- Measure clearance between side cover and the end of the output shaft bearing.
- Select proper thickness of adjusting shim so that clearance is within specifications.
Scheme 995
Scheme 996
Scheme 997
Scheme 998
Scheme 999
Scheme 1000
- Install bearing retainer for output shaft.
- Install output shaft thrust needle bearing on bearing retainer.
- Install output shaft on transmission case.
- Measure dimensions L1 and L2 at side cover and then calculate dimension A. Measure dimension L1 and L2 in at least two places . A : Distance between transmission case fitting surface and adjusting shim mating surface . A= l 1 - l 2 l 2: Height of gauge
- Measure dimensions L2 and L3 and then calculate dimension B. Measure L2 and L3 in at least two places . B : Distance between the end of output shaft bearing outer race and the side cover fitting surface of transmission case . B = L2 - L3 L2: Height of gauge
- Select proper thickness of adjusting shim so that output shaft end play (clearance between side cover and output shaft bearing) is within specifications. Output shaft end play: 0 - 0.15 mm (0 - 0.0059 in) (A-B) Output shaft end play adjusting shims: Refer to «OUTPUT SHAFT ADJUSTING SHIMS»(ref-206576-S20314167922005112500000) .
- Install adjusting shim on output shaft bearing.
Scheme 1001
Scheme 1002
Scheme 1003
Scheme 1004
Scheme 1005
Scheme 1006
Scheme 1007
Scheme 1008
Scheme 1009
Scheme 1010
Scheme 1011
Scheme 1012
Scheme 1013
Scheme 1014
Scheme 1015
Scheme 1016
Scheme 1017
Scheme 1018
Scheme 1019
Scheme 1020
Scheme 1021
Scheme 1022
Scheme 1023
Scheme 1024
Scheme 1025
Scheme 1026
- Apply anaerobic liquid gasket to transmission case as shown in illustration. Refer to «RECOMMENDED CHEMICAL PRODUCTS AND SEALANTS»(ref-177331-S04337218152005052600000) .
- Set side cover on transmission case. Apply locking sealant to the mating surface of transmission case .
- Tighten side cover fixing bolts to specified torque. Refer to «OVERHAUL»(ref-206576-S37744387762005112500000) . Do not mix bolts A and B . Always replace bolts A as they are self-sealing bolts .
- Remove paper rolled around bearing retainer.
- Install thrust washer on bearing retainer. Apply petroleum jelly to thrust washer .
- Install forward clutch assembly. Align teeth of low & reverse brake drive plates before installing . Make sure that bearing retainer seal rings are not spread . If forward clutch assembly is correctly seated, points 1 and 2 are at almost same level .
- Install thrust needle bearing on bearing retainer. Apply petroleum jelly to thrust needle bearing . Pay attention to direction of thrust needle bearing .
- Install overrun clutch hub. Apply petroleum jelly to thrust washers . Align teeth of overrun clutch drive plates before installing .
- Hold forward clutch hub and turn rear internal gear. Check overrun clutch hub for correct directions of lock and unlock. If not shown as illustrated, check installed direction of forward one-way clutch .
- Install forward clutch hub and rear internal gear assembly. Align teeth of forward clutch drive plates before installing . Check that three hooks of thrust washer are correctly aligned after installing .
- Install rear planetary carrier assembly and rear sun gear according to the following procedures. Install needle bearings on rear planetary carrier. Apply petroleum jelly to needle bearings . Pay attention to direction of needle bearings . Install rear sun gear on rear planetary carrier. Pay attention to direction of rear sun gear . Install rear planetary carrier on transmission case.
- Install thrust needle bearing on front planetary carrier, then install them together on transmission case. Apply petroleum jelly to thrust needle bearing . Pay attention to direction of thrust needle bearing .
- Install low and reverse brake piston according to the following procedures. Set and align return springs to transmission case gutters as shown in illustration. Set and align piston with retainer. Install piston and retainer assembly on the transmission case. Align bracket to specified gutter as indicated in illustration . Check that each protrusion of piston is correctly set to corresponding return spring as follows. Push piston and retainer assembly evenly and confirm they move smoothly . If they can not move smoothly, remove piston and retainer assembly and align return spring correctly as instructed in step a . Push down piston and retainer assembly and install snap ring.
- Install low one-way clutch to front planetary carrier by turning carrier in the direction of the arrow shown.
- Install snap ring with screwdriver. Forward clutch and bearing must be correctly installed for snap ring to fit into groove of transmission case .
- Install needle bearing on transmission case. Apply petroleum jelly to needle bearing . Pay attention to direction of needle bearing .
- Install bearing race, needle bearing and high clutch hub on front sun gear. Apply petroleum jelly to needle bearing . Pay attention to direction of needle bearing .
- Install needle bearing and high clutch drum on high clutch hub.
- Install needle bearing on high clutch drum. Apply petroleum jelly to needle bearing. Pay attention to direction of needle bearing.
- Remove paper rolled around input shaft.
- Install input shaft assembly in reverse clutch. Align teeth of reverse clutch drive plates before installing .
- Install reverse clutch assembly on transmission case. Align teeth of high clutch drive plates before installing .