2009 NISSAN LATIO engine

CONSULT-III Function " (HR16DE),
EC-604, " CONSULT-III Function (ENGINE) " (MR
Type 1) or EC-1116, " CONSULT-III F
unction (ENGINE) " (MR Type 2).
Only one set of freeze frame data (either 1st trip freez e frame data of freeze frame data) can be stored in the
ECM. 1st trip freeze frame data is stored in the ECM me mory along with the 1st trip DTC. There is no priority
for 1st trip freeze frame data and it is updated each time a different 1st trip DTC is detected. However, once
freeze frame data (2nd trip detection/MIL on) is stored in the ECM memory, 1st trip freeze frame data is no
longer stored. Remember, only one set of freeze frame data can be stored in the ECM. The ECM has the fol-
lowing priorities to update the data.
Both 1st trip freeze frame data and freeze frame dat a (along with the DTC) are cleared when the ECM mem-
ory is erased.
HOW TO ERASE DTC
The diagnostic trouble code can be erased by CONSULT- III, GST or ECM DIAGNOSTIC TEST MODE as
described following.
• If the battery cable is disconnected, the diagnosti c trouble code will be cleared within 24 hours.
• When you erase the DTC, using CONSULT-III or GS T is easier and quicker than switching the mode
selector on the ECM.
The following emission-related diagnostic information is cleared from the ECM memory when erasing DTC
related to OBD-II. For details, refer to EC-90, " Diagnosis Description " (HR16DE),
EC-542, " Emission-related
Diagnostic Information " (MR Type 1) or
EC-1052, " Emission-related Diagnostic Information " (MR Type 2).
• Diagnostic trouble codes (DTC)
• 1st trip diagnostic trou ble codes (1st trip DTC)
• Freeze frame data
• 1st trip freeze frame data
• System readiness test (SRT) codes
• Test values
HOW TO ERASE DTC (WITH CONSULT-III)
• If a DTC is displayed for both ECM and TCM, it is necessary to be erased for both ECM and TCM.
1. If the ignition switch stays ON after repair work, be sure to turn ignition switch OFF once. Wait at least 10 seconds and then turn it ON (engine stopped) again.
2. Turn CONSULT-III “ON” and touch “TRANSMISSION”.
3. Touch “SELF-DIAG RESULTS”.
4. Touch “ERASE”. (The DTC in the TCM will be erased.) Then touch “BACK” twice.
5. Touch “ENGINE”.
6. Touch “SELF-DIAG RESULTS”.
7. Touch “ERASE”. (The DTC in the ECM will be erased.)
HOW TO ERASE DTC (WITH GST)
1. If the ignition switch stays ON after repair work, be sure to turn ignition switch OFF once. Wait at least 10 seconds and then turn it ON (engine stopped) again.
2. Perform “TCM SELF-DIAGNOSTIC PROCEDURE (No Tools)”. Refer to AT-83, " Diagnosis Procedure
without CONSULT-III " . (The engine warm-up step can be skipped when performing the diagnosis only to
erase the DTC.)
3. Select Mode 4 with Generic Scan Tool (GST). For details, refer to EC-110, " Diagnosis Tool Function "
(HR16DE),
EC-612, " Generic Scan Tool (GST) Function " (MR Type 1) or
EC-1124, " Generic Scan Tool
(GST) Function " (MR Type 2).
HOW TO ERASE DTC (NO TOOLS)
Priority Items
1 Freeze frame data Misfire — DTC: P0300 - P0306
Fuel Injection System Function — DTC: P0171, P0172, P0174, P0175
2 Except the above items (Includes A/T related items)
3 1st trip freeze frame data

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The OD OFF indicator lamp is located on the combination meter.
1. If the ignition switch stays ON after repair work, be su re to turn ignition switch OFF once. Wait at least 10
seconds and then turn it ON (engine stopped) again.
2. Perform “TCM SELF-DIAGNOSTIC PR OCEDURE (No Tools)”. Refer to AT-83, " Diagnosis Procedure
without CONSULT-III " . (The engine warm-up step can be ski
pped when performing the diagnosis only to
erase the DTC.)
3. Perform “OBD-II SELF-DIAGNOSTIC PROCEDURE (No tools)”. Refer to EC-90, " Diagnosis Description "
(HR16DE),
EC-542, " Emission-related Diagnostic Information " (MR Type 1) or
EC-1052, " Emission-
related Diagnostic Information " (MR Type 2).
Malfunction Indicator Lamp (MIL) INFOID:0000000004305313
DESCRIPTION The MIL is located on the instrument panel.
1. The MIL will light up when the ignition switch is turned ON with- out the engine running. This is a bulb check.
• If the MIL does not light up, refer to DI-20, " Schematic " ,
EC- 447, " Wiring Diagram " (HR16DE),
EC-1010, " Wiring Diagram "
(MR Type 1) or
EC-1532, " Wiring Diagram " (MR Type 2).
2. When the engine is start ed, the MIL should go off.
• If the MIL remains on, the on board diagnostic system has
detected an engine system malfunction.

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z
: Solenoid ON
× : Solenoid OFF
–: Non-standard condition
Line Pressure Solenoid Valve If non-standard solenoid signal is sent to TCM, line pre ssure solenoid valve is turned OFF to achieve maxi-
mum oil pressure.
Torque Converter Clutch Solenoid Valve If non-standard solenoid signal is sent to TCM, torque conv erter clutch solenoid valve is turned OFF to release
lock-up.
Overrun Clutch Solenoid Valve If non-standard solenoid signal is sent to TCM, overr un clutch solenoid valve is turned OFF to engage overrun
clutch. This will result in more effective engine brake during deceleration.
How to Perform Trouble Diagnosis for Quick and Accurate Repair INFOID:0000000004305316
INTRODUCTION The TCM receives a signal from the vehicle speed sensor, accelera-
tor pedal position sensor or PNP switch and provides shift control or
lock-up control via A/T solenoid valves.
The TCM also communicates with the ECM by means of a signal
sent from sensing elements used wit h the OBD-related parts of the
A/T system for malfunction-diagnostic purposes. The TCM is capa-
ble of diagnosing malfunctioning parts while the ECM can store mal-
functions in its memory.
Input and output signals must always be correct and stable in the
operation of the A/T system. T he A/T system must be in good oper-
ating condition and be free of valve seizure, solenoid valve malfunc-
tion, etc.
It is much more difficult to diagnose a malfunction t hat occurs intermittently rather than continuously. Most
intermittent malfunctions are caused by poor electric c onnections or improper wiring. In this case, careful
checking of suspected circuits may hel p prevent the replacement of good parts.
Shift position
Normal
Malfunction in solenoid
valve A Malfunction in solenoid
valve B Malfunction in solenoid
valves A and B
A B Gear A B Gear A B Gear A B Gear
“D” position z z
1st –z→×
3rd z
→× –
3rd – –
3rd
×
z2nd – z→× × – – –
× × 3rd – x ×– – –
z ×4th – x z→× – – –
“2” position z z
1st –z→× z→× – – –
× z2nd – z→× × – – –
× × 3rd – x ×– – –
“1” position z z
1st –z→× z→× – – –
× z2nd – z→× × – – –
× × 3rd – x ×– – –

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4.
† Perform “Road Test”. AT-554-1. “Check Before Engine is Started”
AT-56OD OFF Indicator Lamp Does Not Come On "
,
AT-83 .
† CAN COMMUNICATION LINE AT-88 .
† PARK/NEUTRAL POSITION (PNP) SWITCH AT-91 .
† A/T FLUID TEMPERATURE SENSOR CIRCUIT AT-96 .
† VEHICLE SPEED SENSOR A/T (REVOLUTION SENSOR) AT-101 .
† ENGINE SPEED SIGNAL AT-106 .
† A/T 1ST GEAR FUNCTION AT-110 .
† A/T 3RD GEAR FUNCTION AT-116 .
† A/T 4TH GEAR FUNCTION AT-119 .
† TORQUE CONVERTER CLUTCH SOLENOID VALVE AT-124 .
† A/T TCC S/V FUNCTION (LOCK-UP) AT-129 .
† LINE PRESSURE SOLENOID VALVE AT-134 .
† SHIFT SOLENOID VALVE A AT-139 .
† SHIFT SOLENOID VALVE B AT-144 .
† OVERRUN CLUTCH SOLENOID VALVE AT-149 .
† VEHICLE SPEED SENSOR MTR AT-154 .
† BATT/FLUID TEMP SEN (A/T FLUID TEMP SENSOR CIRCUIT AND TCM POWER SOURCE)
AT-157 .
† TURBINE REVOLUTION SENSOR AT-163 .
† CONTROL UNIT (RAM), CONTROL UNIT (ROM) AT-168 .
† MAIN POWER SUPPLY AND GROUND CIRCUIT AT-169 .
4-2. “Check at Idle” AT-56Engine Cannot Be Started in "P" and "N" Position " .
† AT-184, " In "P" Position, Vehicle Moves Forward or Backward When Pushed " .
† AT-184, " In "N" Position, Vehicle Moves " .
† AT-185, " Large Shock "N" " .
† AT-186, " Vehicle Does Not Creep Backward in "R" Position " .
† AT-187, " Vehicle Does Not Creep Forward in "D", "2" or "1" Position " .

Part 1
† AT-188, " Vehicle Cannot Be Started from D .
† AT-190, " A/T Does Not Shift: D .
† AT-192, " A/T Does Not Shift: D .
† AT-193, " A/T Does Not Shift: D .
† AT-194, " A/T Does Not Perform Lock-up " .
† AT-195, " A/T Does Not Hold
Lock-up Condition " .
† AT-196, " Lock-up Is Not Released " .
† AT-197, " Engine Speed Does Not Return to Idle (Light Braking D " .
Part 2 AT-61Vehicle Cannot Be Started from D .
† AT-190, " A/T Does Not Shift: D .
† AT-192, " A/T Does Not Shift: D .
† AT-193, " A/T Does Not Shift: D .
Part 3 AT-62A/T Does Not Shift: D " .
† AT-199, " A/T Does Not Shift: D " .
† AT-200, " A/T Does Not Shift: 2 " .
† AT-202, " Vehicle Does Not Decelerate by Engine Brake " .
† Perform self-diagnosis. Enter checks for detected items. AT-79 ,
AT-83 .
† CAN COMMUNICATION LINE AT-88 .
† PARK/NEUTRAL POSITION (PNP) SWITCH AT-91 .
† A/T FLUID TEMPERATURE SENSOR CIRCUIT AT-96 .
† VEHICLE SPEED SENSOR A/T (REVOLUTION SENSOR) AT-101 .
† ENGINE SPEED SIGNAL AT-106 .
† A/T 1ST GEAR FUNCTION AT-110 .
† A/T 3RD GEAR FUNCTION AT-116 .
† A/T 4TH GEAR FUNCTION AT-119 .
† TORQUE CONVERTER CLUTCH SOLENOID VALVE AT-124 .
† A/T TCC S/V FUNCTION (LOCK-UP) AT-129 .
† LINE PRESSURE SOLENOID VALVE AT-134 .
† SHIFT SOLENOID VALVE A AT-139 .
† SHIFT SOLENOID VALVE B AT-144 .
† OVERRUN CLUTCH SOLENOID VALVE AT-149 .
† VEHICLE SPEED SENSOR MTR AT-154 .
† BATT/FLUID TEMP SEN (A/T FLUID TEMP SENSOR CIRCUIT AND TCM POWER SOURCE)
AT-157 .
† TURBINE REVOLUTION SENSOR AT-163 .
† CONTROL UNIT (RAM), CONTROL UNIT (ROM) AT-168 .
† MAIN POWER SUPPLY AND GROUND CIRCUIT AT-169 .
5. † For self-diagnosis NG items, inspect each component. Repair or replace the damaged parts. AT-79 ,
AT-83 6.
† Perform “Road Test”. AT-557.
† Perform the Diagnostic Procedures for all remaining items marked NG. Repair or replace the damaged parts.
Refer to the Symptom Chart when you perform the procedures. (The chart also shows some other possible symp-
toms and the component inspection orders.) AT-658.
† Erase DTC from TCM and ECM memories. AT-39 ,
AT-83

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Inspections Before Trouble Diagnosis
INFOID:0000000004305319
A/T FLUID CHECK
Fluid Leakage and Fluid Level Check Check fluid leakage and check the fluid level. Refer to AT-17, " Checking A/T Fluid " .
Fluid Condition Check Check the A/T fluid condition.
STALL TEST
Stall Test Procedure 1. Check ATF and engine oil levels. If necessary, add ATF and engine oil.
2. Drive vehicle for approximately 10 minutes or until ATF and engine oil reach operating temperature.
3. Set parking brake and block wheels.
4. Install a tachometer where it can be seen by driver during test. •It is good practice to mark the point of specified engine
rpm on indicator.
5. Start engine, apply foot brake, and place selector lever in “D” position.Fluid status Conceivable Cause Required Operation
Varnished (viscous
varnish state) Clutch, brake
scorched Replace the ATF and check the A/T
main unit and the vehicle for mal-
functions (wire harnesses, cooler
pipes, etc.)
Milky white or
cloudy Water in the ATFReplace the ATF and check for plac-
es where water is getting in.
Large amount of
metal powder mixed
in Unusual wear of
sliding parts within
A/T Replace the ATF and check for im-
proper operation of the A/T. SAT775B

How to Perform Trouble Diagnosis for
Quick and Accurate Repair " .
NOTE:
Stall revolution is too high in “D”, “2”, or “1” position:
• Slippage occurs in 1st gear but not in 2nd and 3rd gears. ..... Low one-way clutch slippage
• Slippage occurs in the following gears:
1st through 3rd gears in “D” position and engine brake f unctions with OD OFF. (OD OFF indicator lamp is
on.)
1st and 2nd gears in “2” position and engine brake functions with accelerator pedal released (fully closed
throttle)...... Forwar d clutch or forward one-way clutch slippage
Stall revolution is too high in “R” position:
• Engine brake does not function in “1” posit ion. ..... Low & reverse brake slippage
• Engine brake functions in “1” position. ..... Reverse clutch slippage
Stall revolution with in specifications:
• Vehicle does not achieve speed of more than 80 km/h ( 50 MPH). ..... One-way clutch seizure in torque con-
verter housing
CAUTION:
Be careful because automatic flui d temperature increases abnormally:
• Slippage occurs in 3rd and 4th gears in “D” position. ..... High clutch slippage
• Slippage occurs in 2nd and 4th gears in “D” position. ..... Brake band slippage
• Engine brake does not function in 2nd and 3rd gears in “D” position, 2nd gear in “2” position, and 1st gear in “1” position with OD OFF. (OD OFF indicator lamp is on.) ..... Overrun clutch slippage
Stall revolution less than specifications:
• Poor acceleration during starts. ..... One-way clutch seizure in torque converter Stall revolution:
AT-373, " Stall Speed "
SAT771B

AT-54< SERVICE INFORMATION >
TROUBLE DIAGNOSIS
Location of line pressure test ports are shown in the figure.
• Always replace pressure plugs as they are self-sealing bolts.
Line Pressure Test Procedure
1. Check ATF and engine oil levels. If necessary, add ATF or engine oil.
2. Drive vehicle for approx. 10 minutes or until engine oil and ATF reach operating temperature.
3. Install oil pressure gauge to corresponding line pressure test port.
4. Set parking brake and block wheels.
5. Start engine and measure line pressure at idle and stall speed. CAUTION:
• Keep the brake pedal pressed all the way down during
measurement.
• When measuring the line pressure at the stall speed, refer to "STALL TEST". SCIA7187E
ATF operating temperature: 50 - 80
°C (122 -176 °F) SAT647B
SCIA6528J
SAT513G
SAT493G