Nissan Maxima Service and Repair Manual: Additional service when replacing transaxle assembly
Description
When replacing the transaxle assembly, perform the following work.
ERASING, LOADING AND STORING OF 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/control valve is replaced, it is necessary to
erase the calibration data previously
stored in TCM, to load new calibration data, and to stored them.
ERASING OF 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/control valve is replaced, it is necessary to erase
the CVT fluid degradation level
data recorded by TCM.
Procedure
CAUTION:
Immediately after TCM is replaced or after transaxle assembly is
replaced (after TCM initialization is
complete), self-diagnosis result of "P1701", "P1709" may be displayed. In this
case, erase self-diagnosis
result using CONSULT. After erasing self-diagnosis result, perform DTC P1701
reproduction procedure
and check that malfunction is not detected. Refer to TM-95, "DTC Logic" (P1701),
TM-99, "DTC
Logic" (P1709).
1.PREPARATION BEFORE WORK
With CONSULT
- Start the engine.
CAUTION:
Never drive the vehicle.
- Select "Data Monitor" in "TRANSMISSION".
- Select "ATFTEMP COUNT".
2.PERFORM TCM INITIALIZATION
With CONSULT
- Turn ignition switch OFF.
- Turn ignition switch ON.
CAUTION:
Never start the engine.
- Select "Self Diagnostic Results" in "TRANSMISSION".
- Shift selector lever to "R" position.
- Depress slightly the accelerator pedal (Pedal angle: 2.0/8) while
depressing the brake pedal.
- Select "Erase" with step 5.
- Release brake pedal and accelerator pedal.
- Select "Special Function" in "TRANSMISSION".
- Select "CALIB DATA".
- Check that "CALIB DATA" value is as shown as in the following tab


3.LOAD CALIBRATION DATA
- Shift selector lever to "P" position.
- Check that "P" is displayed on shift position indicator on
combination meter.
NOTE:
It indicates approximately 1 - 2 seconds after shifting the selector lever
to "P" position.
4.DETECT MALFUNCTIONING ITEM
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
- Power supply and ground of TCM. (Refer to TM-95, "Diagnosis
Procedure".)
5.STORE CALIBRATION DATA
- Turn ignition switch OFF and wait for 5 seconds.
- Turn ignition switch ON.
6.ERASE CVT FLUID DEGRADATION LEVEL DATA
With CONSULT
- Select "WORK SUPPORT" in "TRANSMISSION".
- Select "CONFORM CVTF DETERIORTN".
- Touch "Clear".
Description
When replacing the TCM, perform the following work.
TCM PROGRAMMING
Since vehicle specifications are not yet written in a new TCM, it
is necessary to write them with CONSULT ...
Other materials:
B2192 ID discord, IMMU-ECM
Description
BCM performs the ID verification with ECM that allows the
engine to start. Start the engine if the ID is OK.
ECM prevents the engine from starting if the ID is not registered. BCM starts
the communication with ECM if
ignition switch is turned ON.
DTC Logic
DTC DETECTION LOGIC ...
Interior room lamp
Wiring Diagram
...
Removal and installation
SUNROOF UNIT ASSEMBLY
Inspection
WIND DEFLECTOR
Open glass lid assembly fully.
Visually check for proper installation, damaged/deteriorated
components, or foreign objects within mechanism.
Correct as required for
smooth operation.
Check for grease at the wind deflector arm (1) and ...