Nissan Versa Sedan. Manual — part 855
TM-326
< BASIC INSPECTION >
[CVT: RE0F11A]
ADDITIONAL SERVICE WHEN REPLACING TRANSAXLE ASSEMBLY
ADDITIONAL SERVICE WHEN REPLACING TRANSAXLE ASSEMBLY
Description
INFOID:0000000009268113
When replacing the transaxle, perform the following work.
ERASING THE CALIBRATION DATA
• The TCM acquires calibration data (individual characteristic value) of each solenoid that is stored in the
ROM assembly (in the control valve). This enables the TCM to perform accurate control. For this reason,
after the transaxle assembly is replaced, it is necessary to erase the calibration data that is stored in the
TCM and load new calibration data.
ERASING THE LEARNED VALUE DATA
• TCM learns indicated pressure for appropriate control of the transaxle assembly and records the learned
values. For this reason, the leaned values stored in TCM must be erased after replacing a transaxle assem-
bly.
ERASING CVT FLUID DEGRADATION LEVEL DATA
• TCM records the degradation level of the CVT fluid calculated from the vehicle driving status. Therefore, if
the transaxle assembly is replaced, it is necessary to erase the CVT fluid degradation level data recorded by
TCM.
Work Procedure
INFOID:0000000009268114
1.
INITIALIZE TCM
With CONSULT
1. Set parking brake.
2. Turn ignition switch ON.
3. Select “Work Support” in “TRANSMISSION”.
4. Select “ERASE MEMORY DATA”.
5. While maintaining the conditions below, touch “Start”.
-
Vehicle stop status
-
With engine stopped
-
Selector lever: “R” position
-
Accelerator pedal: Depressed
NOTE:
Select “Start” and complete within approximately 20 seconds.
Is “COMPLETED” displayed?
YES
>> GO TO 2.
NO
>> Turn the ignition switch OFF and wait for a minimum of 10 seconds then perform the work again.
2.
CHECK AFTER TCM IS INITIALIZED
With CONSULT
1. Turn ignition switch OFF with the selector lever in “R” position and wait for 10 seconds or more.
2. Turn ignition switch ON with the selector lever in “R” position.
CAUTION:
Never start the engine.
3. Select “Special function” in “TRANSMISSION”.
4. Select “CALIB DATA”.
5. Check that indicated value of “CALIB DATA” is equal to the value shown in the following table.
Item name
Display value
Item name
Display value
UNIT CLB ID1
00
MAP NO HC/RB
00
UNIT CLB ID2
00
MAP NO L/B
00
UNIT CLB ID3
00
OFFSET2 LU
0
UNIT CLB ID4
00
OFFSET2 PL
0
UNIT CLB ID5
00
OFFSET2 PRI
0
UNIT CLB ID6
00
OFFSET2 H/R
0
ADDITIONAL SERVICE WHEN REPLACING TRANSAXLE ASSEMBLY
TM-327
< BASIC INSPECTION >
[CVT: RE0F11A]
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Is the indicated value of “CALIB DATA” equal to the value shown in the table?
YES
>> GO TO 3.
NO
>> GO TO 1.
3.
LOADING OF CALIBRATION DATA
1. Shift the selector lever to the “P” position.
2. Check that “P” is displayed on shift position indicator on combination meter.
NOTE:
Displayed approximately 4 – 5 seconds after the selector lever is moved to the “P” position.
Does shift position indicator display “P”?
YES
>> GO TO 5.
NO
>> GO TO 4.
4.
DETECT MALFUNCTIONING ITEMS
Check the following items:
• Harness between the TCM and the ROM assembly inside the transaxle assembly is open or shorted.
• Disconnected, loose, bent, collapsed, or otherwise abnormal connector housing terminals
Is the inspection result normal?
YES
>> GO TO 1.
NO
>> Repair or replace the malfunctioning parts.
5.
ERASE THE CVT FLUID DEGRADATION LEVEL DATA
With CONSULT
1. Select “WORK SUPPORT” in “TRANSMISSION”.
2. Select “CONFORM CVTF DETERIORTN”.
3. Touch “Clear”.
>> WORK END
UNIT CLB ID7
00
OFFSET2 L/B
0
UNIT CLB ID8
00
INIT OFFSET H/R A
0
UNIT CLB ID9
00
INIT OFFSET H/R B
0
UNIT CLB ID10
00
INIT OFFSET H/R C
0
UNIT CLB ID11
00
INIT OFFSET H/R D
0
GAIN LU
256
INIT OFFSET H/R E
0
GAIN PL
256
INIT OFFSET H/R F
0
GAIN PRI
256
INIT OFSET LB A
0
GAIN HC/RB
256
INIT OFSET LB B
0
GAIN L/B
256
INIT OFSET LB C
0
OFFSET LU
0
INIT OFSET LB D
0
OFFSET PL
0
INIT OFSET LB E
0
OFFSET PRI
0
INIT OFSET LB F
0
OFFSET HC/RB
0
LB INITIALIZE LEARN
−1
OFFSET L/B
0
HC INITIALIZE LEARN
−1
MAP NO LU
00
LB INITIALIZE TEMP
FF
MAP NO PL
00
LB INITIALIZE TEMP
FF
MAP NO PRI
00
Item name
Display value
Item name
Display value
TM-328
< BASIC INSPECTION >
[CVT: RE0F11A]
CALIBRATION OF G SENSOR
CALIBRATION OF G SENSOR
Description
INFOID:0000000009268115
TCM stores calibration data (inherent characteristic value) of G sensor to provide accurate control. Therefore,
it is required to perform calibration of G sensor after the following work is performed.
• Removal/installation or replacement of G sensor
• Replacement of TCM
Work Procedure
INFOID:0000000009268116
1.
PREPARATION BEFORE CALIBRATION PROCEDURE
1. Park the vehicle on a level surface.
2. Adjust air pressure of all tires to the specified pressure.
>> GO TO 2.
2.
PERFORM CALIBRATION
With CONSULT
1. Turn ignition switch ON.
CAUTION:
Never start engine.
2. Select “Work Support” in “TRANSMISSION”.
3. Select “G SENSOR CALIBRATION”.
4. Touch “Start”.
CAUTION:
Never swing the vehicle during “G sensor calibration”.
Is “COMPLETED” displayed?
YES
>> GO TO 3.
NO
>> Perform steps 1 and 2 again.
3.
PERFORM THE SELF-DIAGNOSIS
With CONSULT
1. Turn ignition switch OFF and wait for 10 seconds.
2. Turn ignition switch ON.
3. Select “Self Diagnostic Results” in “TRANSMISSION”.
Is “P1586” or “P1588” detected?
YES
>> Go to
NO
>> Calibration end
CVT FLUID COOLER SYSTEM
TM-329
< BASIC INSPECTION >
[CVT: RE0F11A]
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CVT FLUID COOLER SYSTEM
Cleaning
INFOID:0000000009315603
Whenever an automatic transaxle is repaired, overhauled, or replaced, the CVT fluid cooler mounted in the
radiator must be inspected and cleaned.
Metal debris and friction material, if present, can be trapped or be deposited in the CVT fluid cooler. This
debris can contaminate the newly serviced CVT or, in severe cases, can block or restrict the flow of CVT fluid.
In either case, malfunction of the newly serviced CVT may occur.
Debris, if present, may deposit as CVT fluid enters the cooler inlet. It will be necessary to back flush the cooler
through the cooler outlet in order to flush out any built up debris.
CVT FLUID COOLER CLEANING PROCEDURE
1. Position an oil pan under the transaxle's inlet and outlet cooler hoses.
2. Identify the inlet and outlet fluid cooler hoses.
3. Disconnect the fluid cooler inlet and outlet rubber hoses from the
steel cooler tubes or bypass valve.
NOTE:
Replace the cooler hoses if rubber material from the hose
remains on the tube fitting.
4. Allow any CVT fluid that remains in the cooler hoses to drain into
the oil pan.
5. Insert the extension adapter hose of a can of Transmission
Cooler Cleaner (Nissan P/N 999MP-AM006) into the cooler out-
let hose.
CAUTION:
• Wear safety glasses and rubber gloves when spraying the
Transmission Cooler Cleaner.
• Spray Transmission Cooler Cleaner only with adequate
ventilation.
• Avoid contact with eyes and skin.
• Never breath vapors or spray mist.
6. Hold the hose and can as high as possible and spray Transmis-
sion Cooler Cleaner in a continuous stream into the cooler outlet
hose until CVT fluid flows out of the cooler inlet hose for 5 seconds.
7. Insert the tip of an air gun into the end of the cooler outlet hose.
8. Wrap a shop rag around the air gun tip and end of the cooler
outlet hose.
9. Blow compressed air regulated to 5 to 9 kg/cm
2
(70 to 130 psi)
through the cooler outlet hose for 10 seconds to force out any
remaining CVT fluid.
10. Repeat steps 5 through 9 three additional times.
11. Position an oil pan under the banjo bolts that connect the CVT
fluid cooler steel lines to the transaxle.
12. Remove the banjo bolts.
13. Flush each steel line from the cooler side back toward the tran-
saxle by spraying Transmission Cooler Cleaner in a continuous stream for 5 seconds.
14. Blow compressed air regulated to 5 to 9 kg/cm
2
(70 to 130 psi) through each steel line from the cooler
side back toward the transaxle for 10 seconds to force out any remaining CVT fluid.
15. Ensure all debris is removed from the steel cooler lines.
16. Ensure all debris is removed from the banjo bolts and fittings.
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