2009 NISSAN LATIO Service Repair Manual

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Page 81 of 4331

NISSAN LATIO 2009 Service Repair Manual 2. PNP switch adjustment
AT-224 3. Overdrive control switch
AT-172 4. Accelerator pedal position sensor
EC-412
(HR16DE), EC- 959 (MR Type 1)
or EC-1481 (MR
Type 2)
5. Vehicle speed sensor·A/T

Page 82 of 4331

NISSAN LATIO 2009 Service Repair Manual AT
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TCM Terminal and Reference Value
INFOID:0000000004305329
TCM HARNESS CONNECTOR TERMINAL LAYOUT
Terminals and Reference Values for TCM TCM terminal data are reference values, measured betwee

Page 83 of 4331

NISSAN LATIO 2009 Service Repair Manual .)
Battery voltage
When overrun clutch solenoid valve
does not operate. (When overrun clutch
engaged. Refer to AT-22 .)
0 V
25 B Ground Always 0 V
26 Y PNP switch “1” position
and When setti

Page 84 of 4331

NISSAN LATIO 2009 Service Repair Manual AT
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*1
: These terminals are connected to the data link connector.
*2 : These terminals are connected to the ECM.
CONSULT-III Function (TRANSMISSION) INFOID:0000000004305330
CONSULT-III can displ

AT
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*1
: These terminals are connected to the data link connector.
*2 : These terminals are connected to the ECM.
CONSULT-III Function (TRANSMISSION) INFOID:0000000004305330
CONSULT-III can display each diagnostic item using the diagnostic test models shown following.
FUNCTION
CONSULT-III REFERENCE VALUE NOTICE:
1. The CONSULT-III electrically displays shift timi ng and lock-up timing (that is, operation timing of each
solenoid).
Check for time difference between actual shift timi ng and the CONSULT-III display. If the difference is
noticeable, mechanical parts (except solenoids, sens ors, etc.) may be malfunctioning. Check mechanical
parts using applicable diagnostic procedures.
2. Shift schedule (which implies gear position) display ed on CONSULT-III 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 re fers to the point where shifts start, and
- Gear position displayed on CONSULT-III indicates the point where shifts are completed.
3. Shift solenoid valve “A” or “B” is displayed on CONSUL T-III at the start of shifting. Gear position is dis-
played upon completion of shifting (which is computed by TCM).
39
*2
L Engine speed signal
and Refer to
EC-461 (HR16DE),
EC-597 (MR Type 1) or
EC- 1109 (MR Type 2).
40 O Vehicle speed sensor When driving vehicle at 2 to 3 km/h (1 to
2 MPH) for 1 m (3 ft) or more. Voltage varies
between less
than 0 V and
more than 4.5 V
42 B Sensor ground Always 0 V
47 BR A/T fluid temperature
sensor and 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
48 B Ground Always 0 V
Terminal
Wire
color Item Condition Judgement stan-
dard (Approx.) Diagnostic test mode Function
Work Support This mode enables a technician to adjust some devices faster and more accuratelyI.
Self Diagnostic Results Retrieve DTC from ECU and display diagnostic items.
Data Monitor Monitor the input/output signal of the control unit in real time.
CAN Diagnosis Support Monitor It monitors the status of CAN communication.
Function Test This mode can show results of self-diagnosis of ECU with either “OK” or “NG”. For engine, more
practical tests regarding sensors/switches and/or actuators are available.
DTC & SRT confirmation The status of system monitoring tests and the self-diagnosis status/result can be confirmed.
ECU Identification Display the ECU identification number (part number etc.) of the selected system. Item name Condition Display value (Approx.)
VHCL/S SE-A/T During driving Approximately matches the speedometer
reading.
VHCL/S SE-MTR
THROTTLE POSI Released accelerator pedal. 0.0/8
Fully depressed accelerator pedal. 8.0/8

Page 85 of 4331

NISSAN LATIO 2009 Service Repair Manual 22 .)
ON
When overrun clutch solenoid valve does not
operate. (When overrun clutch engaged. Refer
to AT-22 .)
OFF
BRAKE SW Depressed brake pedal. ON
Released brake pedal. OFF
GEAR During driving

Page 86 of 4331

NISSAN LATIO 2009 Service Repair Manual AT
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SELF-DIAGNOSTIC RESULT MODE
Display Items List
*1: Refer to AT-41, " Malfunction Indicator Lamp (MIL) " .
LINE PRES DTY Line pressure low
⇔ Line pressure high 0 % ⇔ 94 %
TCC S/V DUTY

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SELF-DIAGNOSTIC RESULT MODE
Display Items List
*1: Refer to AT-41, " Malfunction Indicator Lamp (MIL) " .
LINE PRES DTY Line pressure low
⇔ Line pressure high 0 % ⇔ 94 %
TCC S/V DUTY Lock-up OFF ⇔ Lock-up ON 4 % ⇔ 94 %
Item name Condition Display value (Approx.) Items (CONSULT-III
screen terms) Malfunction is detected when... OBD-II (DTC)
Reference page
MIL indicator
lamp*1, “EN- GINE” with
CONSULT-III
or GST
CAN COMM CIRCUIT • When TCM is not transmitting or receiving CAN communication signal
for 2 seconds or more. U1000
AT-88PNP SW/CIRC
• TCM does not receive the correct voltage signal (based on the gear
position) from the switch. P0705
AT-91ATF TEMP SEN/CIRC • TCM receives an excessively low or high voltage from the sensor. P0710
AT-96VHCL SPEED SEN-A/T • TCM does no
t receive the proper voltage signal from the sensor. P0720 AT-101ENGINE SPEED SIG • TCM does not
receive the proper voltage signal from the ECM. P0725 AT-106A/T 1ST GR FNCTN
• A/T cannot be shifted to the 1st gear
position even if electrical circuit
is good. P0731
*2
AT-110 A/T 2ND GR FNCTN
• A/T cannot be shifted to the 2nd gear position even if electrical circuit
is good. P0732
*2
AT-113 A/T 3RD GR FNCTN
• A/T cannot be shifted to the 3rd gear position even if electrical circuit
is good. P0733
*2
AT-116 A/T 4TH GR FNCTN
• A/T cannot be shifted to the 4th gear position even if electrical circuit
is good. P0734
*2
AT-119 T/C CLUTCH SOL/V
• TCM detects an improper voltage drop when it tries to operate the so-
lenoid valve. P0740
AT-124A/T TCC S/V FNCTN • A/T cannot perform lock-up even if electrical circuit is good.
P0744*2
AT-129 LINE PRESSURE S/V
• TCM detects an improper voltage drop when it tries to operate the so-
lenoid valve. P0745
AT-134SHIFT SOLENOID/V A
• TCM detects an improper voltage drop when it tries to operate the so-
lenoid valve. P0750
AT-139SHIFT SOLENOID/V B
• TCM detects an improper voltage drop when it tries to operate the so-
lenoid valve. P0755
AT-144OVERRUN CLUTCH S/
V • TCM detects an improper voltage drop when it tries to operate the so-
lenoid valve. P1760
AT-149VHCL SPEED SEN-
MTR • TCM does not receive the proper voltage signal from the sensor. —
AT-154BATT/FLUID TEMP
SEN • TCM receives an excessively low or high voltage from the sensor. —
AT-157TURBINE SENSOR • TCM does not receive proper voltage signal from sensor. —
AT-163CONTROL UNIT (RAM) • TC
M memory (RAM) is malfunctioning. — AT-168CONTROL UNIT (ROM) • TCM memory
(ROM) is malfunctioning. — AT-168No failure
(NO SELF DIAGNOS-
TIC FAILURE INDICAT-
ED FURTHER
TESTING MAY BE RE-
QUIRED) • No failure has been detected. — —

Page 87 of 4331

Page 88 of 4331

NISSAN LATIO 2009 Service Repair Manual AT
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CAN DIAGNOSTIC SUPPORT MONITOR MODE
Refer to LAN-14, " CAN Diagnostic Support Monitor " .
DTC & SRT CONFIRMATION
Display Items List
Diagnosis Procedure without CONSULT-III INFOID:0000000004

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CAN DIAGNOSTIC SUPPORT MONITOR MODE
Refer to LAN-14, " CAN Diagnostic Support Monitor " .
DTC & SRT CONFIRMATION
Display Items List
Diagnosis Procedure without CONSULT-III INFOID:0000000004305331
TCM SELF-DIAGNOSTIC PROCEDURE
THROTTLE POSI (0.0/8) — X
Degree 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
Monitored item (Unit)
Monitor Item Selection
Remarks
TCM INPUT
SIGNALS MAIN SIG-
NALS SELEC-
TION FROM
MENU DTC work support item Description Check item
1ST GR FNCTN P0731 Following items for “A/T 1st gear function (P0731)” can be con-
firmed.
• Self-diagnosis status (whether the diagnosis is being performed or not)
• Self-diagnostic results (OK or NG) • Shift solenoid valve A
• Shift solenoid valve B
• Each clutch
• Hydraulic control circuit
2ND GR FNCTN P0732 Following items for “A/T 2nd gear function (P0732)” can be con-
firmed.
• Self-diagnosis status (whether the diagnosis is being performed or not)
• Self-diagnostic results (OK or NG) • Shift solenoid valve B
• Each clutch
• Hydraulic control circuit
3RD GR FNCTN P0733 Following items for “A/T 3rd gear function (P0733)” can be con-
firmed.
• Self-diagnosis status (whether the diagnosis is being performed
or not)
• Self-diagnostic results (OK or NG) • Shift solenoid valve A
• Each clutch
• Hydraulic control circuit
4TH GR FNCTN P0734 Following items for “A/T 4th gear function (P0734)” can be con-
firmed.
• Self-diagnosis status (whether the diagnosis is being performed or not)
• Self-diagnostic results (OK or NG) • Shift solenoid valve A
• Shift solenoid valve B
• Overrun clutch solenoid valve
• Line pressure solenoid valve
• Each clutch
• Hydraulic control circuit
TCC S/V FNCTN P0744 Following items for “A/T TCC S/V
function (lock-up) (P0744)” can
be confirmed.
• Self-diagnosis status (whether the diagnosis is being performed or not)
• Self-diagnostic results (OK or NG) • Torque converter clutch sole-
noid valve
• Each clutch
• Hydraulic control circuit

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