2003 NISSAN X-TRAIL Electronic Repair Manual

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Page 161 of 3066

NISSAN X-TRAIL 2003 Electronic Repair Manual DTC P0731 A/T 1ST GEAR FUNCTION
AT-155
[EURO-OBD]
D
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Diagnostic ProcedureECS004RC
1.CHECK SHIFT SOLENOID VALVE
1. Remove control valve assembly. Refer toAT-454, "
Control Valve

Page 162 of 3066

NISSAN X-TRAIL 2003 Electronic Repair Manual AT-156
[EURO-OBD]
DTC P0731 A/T 1ST GEAR FUNCTION
3.CHECK DTC
Perform Diagnostic Trouble Code (DTC) confirmation procedure,AT- 1 5 2 , "
DIAGNOSTIC TROUBLE CODE
(DTC) CONFIRMATION PROCEDURE".
OK or NG

Page 163 of 3066

NISSAN X-TRAIL 2003 Electronic Repair Manual DTC P0731 A/T 1ST GEAR FUNCTION
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Operation Check
lCheck solenoid valve by listening for its operating sound while
applying battery voltage to the terminal an

Page 164 of 3066

NISSAN X-TRAIL 2003 Electronic Repair Manual AT-158
[EURO-OBD]
DTCP0732A/T2NDGEARFUNCTION
DTC P0732 A/T 2ND GEAR FUNCTION
PFP:31940
DescriptionECS004RE
lThis is an OBD-II self-diagnostic item and not available in TCM self-diagnosis.
lThis malfun

AT-158
[EURO-OBD]
DTCP0732A/T2NDGEARFUNCTION
DTC P0732 A/T 2ND GEAR FUNCTION
PFP:31940
DescriptionECS004RE
lThis is an OBD-II self-diagnostic item and not available in TCM self-diagnosis.
lThis malfunction will not be detected while the O/D OFF indicator lamp is indicating another self-diagnosis
malfunction.
lThis malfunction is detected when the A/T does not shift into second gear position as instructed by the
TCM. This is not caused by electrical malfunction (circuits open or shorted) but by mechanical malfunction
such as control valve sticking, improper solenoid valve operation, etc.
TCM TERMINALS AND REFERENCE VALUE
Remarks: Specification data are reference values.
ON BOARD DIAGNOSTIC LOGIC
This diagnosis monitors actual gear position by checking the torque converter slip ratio calculated by TCM as
follows:
Torque converter slip ratio = A x C/B
A: Output shaft revolution signal from revolution sensor
B: Engine speed signal from ECM
C: Gear ratio determined as gear position which TCM supposes
If the actual gear position is higher than the position (2nd) supposed by TCM, the slip ratio will be more than
normal. In case the ratio exceeds the specified value, TCM judges this diagnosis malfunction.
This malfunction will be caused when shift solenoid valve B is stuck open.
*: P0732 is detected.Gear position 1 2 3 4
Shift solenoid valve A ON (Closed) OFF (Open) OFF (Open) ON (Closed)
Shift solenoid valve B ON (Closed) ON (Closed) OFF (Open) OFF (Open)
Te r m i -
nal No.Wire color Item ConditionJudgement stan-
dard
(Approx.)
12 L/YShift solenoid
valve BWhen shift solenoid valve B oper-
ates.
(When driving in “D
1”or“D2”.)Battery voltage
When shift solenoid valve B does not
operate.
(When driving in “D
3”or“D4”.)0V
Gear position supposed by TCM 1 2 3 4
In case of gear position with no malfunctions 1 2 3 4
In case of gear position with shift solenoid valve B stuck open 4 3* 3 4
Diagnostic trouble code Malfunction is detected when ... Check items (Possible cause)
:A/T2NDGRFNCTN
A/T cannot be shifted to the 2nd gear
position even if electrical circuit is good.
lShift solenoid valve B
lEach clutch
lHydraulic control circuit : P0732

Page 165 of 3066

NISSAN X-TRAIL 2003 Electronic Repair Manual DTC P0732 A/T 2ND GEAR FUNCTION
AT-159
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DIAGNOSTIC TROUBLE CODE (DTC) CONFIRMATION PROCEDURE
CAUTION:
lAlways drive vehicle at a safe speed.
lBe careful not to rev

DTC P0732 A/T 2ND GEAR FUNCTION
AT-159
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DIAGNOSTIC TROUBLE CODE (DTC) CONFIRMATION PROCEDURE
CAUTION:
lAlways drive vehicle at a safe speed.
lBe careful not to rev engine into the red zone on the
tachometer.
NOTE:
If “DIAGNOSTIC TROUBLE CODE CONFIRMATION PROCE-
DURE” has been previously conducted, always turn ignition
switch “OFF” and wait at least 5 seconds before conducting the
next test.
TESTING CONDITION:
Always drive vehicle on a level road to improve the accuracy of
test.
After the repair, perform the following procedure to confirm the mal-
function is eliminated.
With CONSULT-II
1. Start engine and select “DATA MONITOR” mode for “A/T” with CONSULT-II.
2. Make sure that output voltage of A/T fluid temperature sensor is within the range below.
FLUID TEMP SEN : 0.4 - 1.5V
If out of range, drive the vehicle to decrease the voltage (warm up the fluid) or stop engine to increase the
voltage (cool down the fluid).
3. Select “2ND GR FNCTN P0732” of “DTC WORK SUPPORT”
mode for “A/T” with CONSULT-II and touch “START”.
4. Accelerate vehicle to 35 to 40 km/h (22 to 25 MPH) under the
following condition and release the accelerator pedal com-
pletely.
THROTTLE POSI: Less than 1.0/8 (at all times during step 4)
Selector lever: D position (OD “ON”)
lCheck that “GEAR” shows “3” or “4” after releasing pedal.
5. Depress accelerator pedal to WOT (more than 7.0/8 of “THROT-
TLE POSI”) quickly from a speed of 35 to 40 km/h (22 to 25
MPH) until “TESTING” changes to “STOP VEHICLE” or “COM-
PLETED”. (It will take approximately 3 seconds.)
If the check result NG appears on CONSULT-II screen, go to “DIAGNOSTIC PROCEDURE”,AT-162,
"Diagnostic Procedure".
If “STOP VEHICLE” appears on CONSULT-II screen, go to following step.
lCheck that “GEAR” shows “2” when depressing accelerator pedal to WOT.
lIf “TESTING” does not appear on CONSULT-II for a long time, select “SELF-DIAGNOSIS” for
“ENGINE”. In case a 1st trip DTC other than P0732 is shown, refer to applicable “TROUBLE DIAG-
NOSIS FOR DTC”.
6. Stop vehicle.
7. Follow the instruction displayed. (Check for normal shifting referring to the table below.)
SAT014K
SAT971J
SAT021J

Page 166 of 3066

NISSAN X-TRAIL 2003 Electronic Repair Manual AT-160
[EURO-OBD]
DTCP0732A/T2NDGEARFUNCTION
8. Make sure that “OK” is displayed. (If “NG” is displayed, refer to “DIAGNOSTIC PROCEDURE”.)
Refer to “DIAGNOSTIC PROCEDURE”,AT - 1 6 2 ,

Page 167 of 3066

NISSAN X-TRAIL 2003 Electronic Repair Manual DTC P0732 A/T 2ND GEAR FUNCTION
AT-161
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Wiring Diagram — AT — 2NDECS004RF
TCWA0050E

Page 168 of 3066

NISSAN X-TRAIL 2003 Electronic Repair Manual AT-162
[EURO-OBD]
DTCP0732A/T2NDGEARFUNCTION
Diagnostic Procedure
ECS004RG
1.CHECK SHIFT SOLENOID VALVE
1. Remove control valve assembly. Refer toAT-454, "
REMOVAL".
2. Check shift solenoid valve oper

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