engine control NISSAN TIIDA 2007 Service Owner's Guide

AT-76
TROUBLE DIAGNOSIS
Revision: June 20062007 Versa
OthersMaximum speed not
attained. Poor accel-
eration.ON vehicle1. A/T fluid levelAT- 1 6
2. PNP switch adjustmentAT- 2 4 6
3. Overdrive control switchAT- 1 8 6
4. Accelerator pedal position sensorEC-532
5. Vehicle speed sensor·A/T (Revolution sensor)
and vehicle speed sensor·MTRAT- 1 0 7, AT- 1 6 6
6. Shift solenoid valve AAT- 1 5 1
7. Shift solenoid valve BAT- 1 5 6
8. Control valve assemblyAT- 2 4 2
OFF vehicle9. Reverse clutchAT- 3 0 9
10. High clutchAT- 3 1 4
11. Brake bandAT- 3 4 3
12. Low & reverse brakeAT- 3 2 7
13. Oil pumpAT- 2 8 9
14. Torque converterAT- 2 6 8
Transaxle noise in
“D”, “2”, “1” and “R”
positions.ON vehicle 1. A/T fluid levelAT- 1 6
OFF vehicle 2. Torque converterAT- 2 6 8
Engine brake does
not operate in “1”
position.ON vehicle1. PNP switch adjustmentAT- 2 4 6
2. Control cable adjustmentAT- 2 3 3
3. Vehicle speed sensor·A/T (Revolution sensor)
and vehicle speed sensor·MTRAT- 1 0 7, AT- 1 6 6
4. Control valve assemblyAT- 2 4 2
5. Overrun clutch solenoid valveAT- 1 6 1
OFF vehicle6. Overrun clutchAT- 3 2 07. Low & reverse brakeAT- 3 2 7
Transaxle overheats.ON vehicle1. A/T fluid levelAT- 1 6
2. Engine idling speedEC-75
3. Accelerator pedal position sensorEC-532
4. Line pressure testAT- 5 6
5. Line pressure solenoid valveAT- 1 4 5
6. Control valve assemblyAT- 2 4 2
OFF vehicle7. Oil pumpAT- 2 8 9
8. Reverse clutchAT- 3 0 9
9. High clutchAT- 3 1 4
10. Brake bandAT- 3 4 3
11. Forward clutchAT- 3 2 0
12. Overrun clutchAT- 3 2 0
13. Low & reverse brakeAT- 3 2 7
14. Torque converterAT- 2 6 8
Items Symptom Condition Diagnostic item Reference page

AT-80
TROUBLE DIAGNOSIS
Revision: June 20062007 Versa
CONSULT-II Function (A/T)UCS005N1
CONSULT-II can display each diagnostic item using the diagnostic test models shown following.
FUNCTION
CONSULT-II REFERENCE VALUE
NOTICE:
1. The CONSULT-II electrically displays shift timing and lock-up timing (that is, operation timing of each sole-
noid).
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.
2. Shift schedule (which implies gear position) displayed on CONSULT-II and that indicated in Service Man-
ual 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.
3. Shift solenoid valve “A” or “B” is displayed on CONSULT-II at the start of shifting. Gear position is dis-
played upon completion of shifting (which is computed by TCM).
Diagnostic test mode Function Reference page
Work supportThis mode enables a technician to adjust some devices faster and more accurately by
following the indications on CONSULT-II.—
Self-diagnostic results Self-diagnostic results can be read and erased quickly.AT- 8 2
Data monitor Input/Output data in the TCM can be read.AT- 8 4
CAN diagnostic support
monitorThe results of transmit/receive diagnosis of CAN communication can be read.AT- 8 6
Function testPerformed by CONSULT-II instead of a technician to determine whether each system
is “OK” or “NG”.—
DTC work support Select the operating condition to confirm Diagnostic Trouble Codes.AT- 8 6
TCM part number TCM part number can be read. —
Item name Condition Display value (Approx.)
VHCL/S SE-A/T
During drivingApproximately matches the speedometer
reading.
VHCL/S SE-MTR
THROTTLE POSIReleased accelerator pedal. 0.0/8
Fully depressed accelerator pedal. 8.0/8
FLUID TEMP SE When A/T fluid temperature is 20°C (68°F). 1.5 V
When A/T fluid temperature is 80°C (176°F). 0.5 V
BATTERY VOLT When turning ignition switch to “ON”. Battery voltage
ENGINE SPEED Engine runningApproximately matches the tachometer
reading.
TURBINE REV During driving (lock-up ON) Approximately matches the engine speed.
OVERDRIVE SWWhen overdrive control switch is depressed. ON
When overdrive control switch is released. OFF
PN POSI SWWhen setting selector lever to “N” or “P” posi-
tion.ON
When setting selector lever to other positions. OFF
R POSITION SWWhen setting selector lever to “R” position. ON
When setting selector lever to other positions. OFF
D POSITION SWWhen setting selector lever to “D” position. ON
When setting selector lever to other positions. OFF

TROUBLE DIAGNOSIS
AT-83
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Revision: June 20062007 Versa
*1: Refer to AT- 4 2 , "Malfunction Indicator Lamp (MIL)" .
*2: These malfunctions cannot be displayed MIL if another malfunction is assigned to MIL.
How to Erase Self-diagnostic Results
1. Touch “SELF-DIAG RESULTS” on “SELECT DIAG MODE”
screen.
2. Touch “ERASE”. (The self-diagnostic results will be erased.)
BATT/FLUID TEMP
SEN
TCM receives an excessively low or high voltage from the sensor. —AT- 1 7 0
TURBINE SENSOR
TCM does not receive proper voltage signal from sensor. —AT- 1 7 6
CONTROL UNIT (RAM)
TCM memory (RAM) is malfunctioning. —AT- 1 8 2
CONTROL UNIT (ROM)
TCM memory (ROM) is malfunctioning. —AT- 1 8 2
No failure
(NO SELF DIAGNOS-
TIC FAILURE INDI-
CATED FURTHER
TESTING MAY BE
REQUIRED)

No failure has been detected. — — Items (CONSULT-II
screen terms)Malfunction is detected when...OBD-II (DTC)
Reference
page MIL indicator
lamp*1,
“ENGINE” with
CONSULT-II or
GST
BCIA0031E
SCIA4849E

AT-84
TROUBLE DIAGNOSIS
Revision: June 20062007 Versa
DATA MONITOR MODE
Operation Procedure
1. Touch “DATA MONITOR” on “SELECT DIAG MODE” screen.
NOTE:
When malfunction is detected, CONSULT-II performs
“REAL-TIME DIAGNOSIS”. Also, any malfunction detected
while in this mode will be displayed in real time.
Display Items List
X: Standard, —: Not applicable, : Option
BCIA0031E
Monitored item (Unit)Monitor Item Selection
Remarks
TCM INPUT
SIGNALSMAIN SIG-
NALSSELEC-
TION FROM
MENU
VHCL/S SE-A/T (km/h) X — Revolution sensor
VHCL/S SE-MTR (km/h) X —Vehicle speed display may not be accu-
rate under approx. 10 km/h (6 mph). It
may not indicate 0 km/h (0 mph) when
vehicle is stationary.
THRTL POS SEN (V) X —
FLUID TEMP SE (V) X —
BATTERY VOLT (V) X —
ENGINE SPEED (rpm) X X
TURBINE REV (rpm) X —
OVERDRIVE SW (ON/OFF) X —
PN POSI SW (ON/OFF) X —
R POSITION SW (ON/OFF) X —
D POSITION SW (ON/OFF) X —
2 POSITION SW (ON/OFF) X —
1 POSITION SW (ON/OFF) X —
ASCD-CRUISE (ON/OFF) X —
Signal input with CAN communication.
ASCD-OD CUT (ON/OFF) X —
KICKDOWN SW (ON/OFF) X —
Not mounted but displayed.
POWERSHIFT SW (ON/OFF) X —
CLOSED THL/SW (ON/OFF) X —
Signal input with CAN communication.
W/O THRL/P-SW (ON/OFF) X —
*SHIFT S/V A (ON/OFF) — —
Displays status of check signal (reinput
signal) for TCM control signal output.
Remains unchanged when solenoid
valves are open or shorted. *SHIFT S/V B (ON/OFF) — —
*OVRRUN/C S/V (ON/OFF) — —
HOLD SW (ON/OFF) X — Not mounted but displayed.

TROUBLE DIAGNOSIS
AT-85
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Revision: June 20062007 Versa
BRAKE SW (ON/OFF) X —Stop lamp switch (Signal input with CAN
communication)
GEAR — XGear position recognized by the TCM
updated after gear-shifting
SLCT LVR POSI — XSelector lever position is recognized by
the TCM.
For fail-safe operation, the specific value
used for control is displayed.
VEHICLE SPEED (km/h) — X Vehicle speed recognized by the TCM.
THROTTLE POSI (0.0/8) — XDegree of opening for accelerator recog-
nized by the TCM
For fail-safe operation, the specific value
used for control is displayed.
LINE PRES DTY (%) — X
TCC S/V DUTY (%) — X
SHIFT S/V A (ON/OFF) — X
SHIFT S/V B (ON/OFF) — X
OVERRUN/C S/V (ON/OFF) — X
SELF-D DP LMP (ON/OFF) — X
TC SLIP RATIO (0.000) — —
TC SLIP SPEED (rpm) — —Difference between engine speed and
torque converter input shaft speed
Voltage (V) — —Displays the value measured by the volt-
age probe.
Frequency (Hz) — —
The value measured by the pulse probe
is displayed. DUTY-HI (high) (%) — —
DUTY-LOW (low) (%) — —
PLS WIDTH-HI (ms) — —
PLS WIDTH-LOW (ms) — —Monitored item (Unit)Monitor Item Selection
Remarks
TCM INPUT
SIGNALSMAIN SIG-
NALSSELEC-
TION FROM
MENU

AT-90
TROUBLE DIAGNOSIS
Revision: June 20062007 Versa
Diagnostic Procedure Without CONSULT-IIUCS005N2
TCM SELF-DIAGNOSTIC PROCEDURE
Description
If a malfunction occurs in electrical system, turning ignition switch ON will illuminate OD OFF indicator lamp for
2 seconds. To detect a malfunction, entering a self-diagnosis start signal retrieves information on malfunctions
from memory and indicates malfunction by blinking OD OFF indicator lamp.
Diagnostic Procedure
1. CHECK OD OFF INDICATOR LAMP
1. Park vehicle on flat surface.
2. Move selector lever to “P” position.
3. Turn ignition switch OFF. Wait at least 5 seconds.
4. Turn ignition switch ON. (Do not start engine.)
Does OD OFF indicator lamp come on about 2 seconds?
YES >> GO TO 2.
NO >> Stop procedure. Perform AT-198, "
OD OFF Indicator
Lamp Does Not Come On" before proceeding.
2. JUDGEMENT PROCEDURE STEP 1
1. Turn ignition switch OFF.
2. Keep pressing shift lock release button.
3. Move selector lever from “P” to “D” position.
4. Turn ignition switch ON. (Do not start engine.)
5. Keep pressing overdrive control switch while OD OFF indicator lamp is lighting up for 2 seconds. (OD
OFF indicator lamp is on.)
6. Keep pressing overdrive control switch and shift selector lever to the “2” position. (OD OFF indicator lamp
is on.)
7. Stop pressing overdrive control switch. (OD OFF indicator lamp is on.)
8. Shift selector lever to the “1” position. (OD OFF indicator lamp is on.)
9. Keep pressing overdrive control switch. (OD OFF indicator lamp is off.)
10. Depress accelerator pedal fully while pressing overdrive control switch.
>> GO TO 3.
SCIA5472E
SCIA7140E

AT-94
DTC U1000 CAN COMMUNICATION LINE
Revision: June 20062007 Versa
DTC U1000 CAN COMMUNICATION LINEPFP:31940
DescriptionUCS005N8
CAN (Controller Area Network) is a serial communication line for real time application. It is an on-vehicle mul-
tiplex communication line with high data communication speed and excellent malfunction 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 con-
nected 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.
On Board Diagnosis LogicUCS005N9

This is an OBD-II self-diagnostic item.

Diagnostic trouble code “U1000 CAN COMM CIRCUIT” with CONSULT-II or 12th judgement flicker with-
out CONSULT-II is detected when TCM cannot communicate to other control units.
Possible CauseUCS005NA
Harness or connector
(CAN communication line is open or shorted.)
DTC Confirmation ProcedureUCS005NB
CAUTION:
If performing this “DTC Confirmation Procedure” again, always turn ignition switch OFF and wait at
least 10 seconds before continuing.
After the repair, perform the following procedure to confirm the malfunction is eliminated.
WITH CONSULT-II
1. Turn ignition switch ON.
2. Select “DATA MONITOR” mode for “A/T” with CONSULT-II.
3. Touch “START”.
4. Wait at least 6 seconds or start engine and wait for at least 6
seconds.
5. If DTC is detected, go to AT-96, "
Diagnostic Procedure" .
WITH GST
Follow the procedure “WITH CONSULT-II”.
WITHOUT CONSULT-II
1. Turn ignition switch ON.
2. Wait at least 6 seconds or start engine and wait at least 6 seconds.
3. Perform self-diagnosis. Refer to AT-90, "
Diagnostic Procedure Without CONSULT-II" .
4. If DTC is detected, go to AT-96, "
Diagnostic Procedure" .
BCIA0031E

AT-100
DTC P0705 PARK/NEUTRAL POSITION (PNP) SWITCH
Revision: June 20062007 Versa
2. CHECK INPUT SIGNAL
Without CONSULT-II
1. Turn ignition switch ON. (Do not start engine.)
2. Check voltage between TCM connector terminals and ground
while moving selector lever through each position.
B: Battery voltage
0: 0V
OK or NG
OK >> GO TO 6.
NG >> GO TO 3.
3. CHECK PNP SWITCH
1. Turn ignition switch OFF.
2. Disconnect PNP switch harness connector.
3. Check continuity between PNP switch harness connector termi-
nals.
OK or NG
OK >> GO TO 5.
NG >> GO TO 4.
4. CHECK CONTROL CABLE ADJUSTMENT
Check PNP switch again with control cable disconnected from manual shaft of A/T assembly. Refer to test
group 3.
OK or NG
OK >> Adjust control cable. Refer to AT- 2 3 3 , "Adjustment of A/T Position" .
NG >> Check PNP switch (Refer to test group 1) again after adjusting PNP switch (Refer to AT- 2 4 7
).

If OK, INSPECTION END

If NG, repair or replace PNP switch. Refer to AT-246, "Park/Neutral Position (PNP) Switch" .
Selector lever positionTerminal
36 35 34 27 26
P, N B0000
R 0B000
D00B00
20 00B0
10000B
SCIA7162E
Selector lever position Connector Terminal Continuity
P
F251 - 2, 3 - 7
Ye s
*Continuity
should not
exist in posi-
tions other
than the
specified
positions. R3 - 8
N 1 - 2, 3 - 9
D3 - 6
23 - 5
13 - 4
SCIA3553E

DTC P0725 ENGINE SPEED SIGNAL
AT-115
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Revision: June 20062007 Versa
TCM terminal data are reference values, measured between each terminal and ground.
Diagnostic ProcedureUCS005O7
1. CHECK DTC WITH ECM
Check DTC with CONSULT-II “ENGINE”.
Turn ignition switch ON and select “SELF-DIAGNOSTIC RESULTS” mode for “ENGINE” with CONSULT-II.
Refer to EC-113, "
CONSULT-II Function (ENGINE)" .
OK or NG
OK >> GO TO 2.
NG >> Check ignition signal circuit for engine control. Refer to EC-576, "
IGNITION SIGNAL" .
2. CHECK INPUT SIGNAL
With CONSULT-II
1. Start engine.
2. Select “TCM INPUT SIGNALS” in “DATA MONITOR” mode for “A/T” with CONSULT-II.
3. Read out the value of “ENGINE SPEED”. Check engine speed
changes according to throttle position.
Without CONSULT-II
1. Start engine.
2. Check voltage between TCM harness connector terminal and
ground.
OK or NG
OK >> GO TO 4.
NG >> GO TO 3.
Terminal Wire color Item Condition Judgement standard (Approx.)
39 L Engine speed signal
and Refer to EC-105
.
Item name Condition Display value
ENGINE SPEED Engine runningApproximately matches the tachome-
ter reading.
SCIA4730E
itemConnec-
torTerminal ConditionJudgement standard
(Approx.)
Engine
speed signalE3239 -
Ground
and Refer to EC-105
.
SCIA3265E

DTC P0731 A/T 1ST GEAR FUNCTION
AT-117
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Revision: June 20062007 Versa
DTC P0731 A/T 1ST GEAR FUNCTIONPFP:31940
DescriptionUCS005O8

This malfunction will not be detected while the OD OFF indicator lamp is indicating another self-diagnosis
malfunction.

This malfunction is detected when the A/T does not shift into first 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.
On Board Diagnosis LogicUCS005O9

This is an OBD-II self-diagnostic item.

Diagnostic trouble code “P0731 A/T 1ST GR FNCTN” with CONSULT-II is detected when A/T cannot be
shifted to the 1st gear position even if electrical circuit is good.

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 (1st) 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 either shift solenoid valve A is stuck open or shift solenoid valve B is
stuck open.

Gear positions supposed by TCM are as follows:
In case of gear position with no malfunctions: 1 , 2, 3 and 4 positions
In case of gear position with shift solenoid valve A stuck open: 2* , 2, 3 and 3 positions
In case of gear position with shift solenoid valve B stuck open: 4* , 3, 3 and 4 positions to each gear posi-
tion above
*: “P0731 A/T 1ST GR FNCTN” is detected.
Possible CauseUCS005O A

Shift solenoid valve A

Shift solenoid valve B

Each clutch

Hydraulic control circuit
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)