NISSAN TIIDA 2010 Service Repair Manual

CVT-28
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ON BOARD DIAGNOSTIC (OBD) SYSTEM
The ECM has a memory function, which stores the driv
ing condition such as fuel system status, calculated
load value, engine coolant temperatur e, short term fuel trim, long term fuel trim, engine speed and vehicle
speed at the moment the ECM detects a malfunction.
Data which are stored in the ECM memory, along with the 1st trip DTC, are called 1st trip freeze frame data,
and the data, stored together with the DTC data, are called freeze frame data and displayed on CONSULT-III
or GST. The 1st trip freeze frame data can only be disp layed on the CONSULT-III screen, not on the GST. For
details, refer to EC-612, "
CONSULT-III Function (ENGINE)".
Only one set of freeze frame data (either 1st trip freez e frame data or freeze frame data) can be stored in the
ECM. 1st trip freeze frame data is stored in the ECM memory 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 lost 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-542, "
Emission-related Diagnostic Information".
• 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. Select Mode 4 with GST (Generic Scan Tool). For details, refer to EC-618, "
Generic Scan Tool (GST)
Function".
Malfunction Indicator Lamp (MIL)INFOID:0000000005397784
DESCRIPTION
PriorityItems
1 Freeze frame data Misfire — DTC: P0300 - P0306
Fuel Injection System Function — DTC: P0171, P0172, P0174, P0175
2 Except the above items (Includes CVT related items)
3 1st trip freeze frame data
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ON BOARD DIAGNOSTIC (OBD) SYSTEMCVT-29
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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-21, "
Schematic", or see
EC-1033, "
Wiring Diagram".
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.
SEF217U
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CVT-30
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TROUBLE DIAGNOSIS
TROUBLE DIAGNOSIS
DTC Inspection Priority ChartINFOID:0000000005397785
If some DTCs are displayed at the same time, perform inspections one by one based on the following priority
chart.
NOTE:
If DTC “U1000” is displayed with other DTCs, first perform the trouble diagnosis for DTC “U1000”.
Refer to
CVT-56
.
Fail-SafeINFOID:0000000005397786
The TCM has an electrical fail-safe mode. This mode make s it possible to operate even if there is an error in a
main electronic control input/output signal circuit.
FAIL-SAFE FUNCTION
If any malfunction occurs in a sensor or solenoid, this function controls the CVT to make driving possible.
Secondary Speed Sensor
The shift pattern is changed in accordance with thrott le position when an unexpected signal is sent from the
secondary speed sensor to the TCM. T he overdrive-off mode is inhibited, and the transaxle is put in “D”.
Primary Speed Sensor
The shift pattern is changed in accordance with thro ttle position and secondary speed (vehicle speed) when
an unexpected signal is sent from the primary speed sensor to the TCM. The overdrive-off mode is inhibited,
and the transaxle is put in “D”.
Transmission Range Switch
If an unexpected signal is sent from the transmission range switch to the TCM, the transaxle is put in “D”.
CVT Fluid Temperature Sensor
If an unexpected signal is sent from the CVT fluid temperature sensor to the TCM, the gear ratio in use before
receiving the unexpected signal is maintained or t he gear ratio is controlled to keep engine speed under 3500
rpm.
Secondary Pressure Sensor
• If an unexpected signal is sent from the secondary pressure sensor to the TCM, the secondary pressure
feedback control is stopped and the offset value obtai ned before the non-standard condition occurs is used
to control line pressure.
• If secondary pressure sensor error signal is input to TCM, secondary pressure feedback control stops, but line pressure is controlled normally.
Line Pressure Solenoid
If an unexpected signal is sent from the solenoid to the TCM, the line pressure solenoid is turned OFF to
achieve the maximum fluid pressure.
Secondary Pressure Solenoid
If an unexpected signal is sent from the solenoid to t he TCM, the secondary pressure solenoid is turned OFF
to achieve the maximum fluid pressure.
Torque Converter Clutch Solenoid
If an unexpected signal is sent from the solenoid to t he TCM, the torque converter clutch solenoid is turned
OFF to cancel the lock-up.
Step Motor
If an unexpected signal is sent from the step motor to the TCM, the step motor coil phases “A” through “D” are
all turned OFF to hold the gear ratio used right before the non-standard condition occurred.
CVT Lock-up Select Solenoid
If an unexpected signal is sent from the solenoid to the TCM, the CVT lock-up select solenoid is turned OFF to
cancel the lock-up.
Priority Detected items (DTC)
1 U1000
2 Except above
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TROUBLE DIAGNOSISCVT-31
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TCM Power Supply (Memory Back-up)
Transaxle assembly is protected by limiting the engine torque when the memory back-up power supply (for
controlling) from the battery is not supplied to TCM.
Normal statues is restored when turning the ignition switch
OFF to ON after the normal power supply.
How to Perform Trouble Diagnosis for Quick and Accurate RepairINFOID:0000000005397787
INTRODUCTION
The TCM receives a signal from the vehicle speed sensor, transmission range switch and provides shift con-
trol or lock-up control via CVT 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
CVT system for malfunction-diagnos tic 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 CVT system. The CVT system must be in good
operating condition and be free of valve seizure, solenoid valve mal-
function, etc.
It is much more difficult to diagnose an error that occurs intermit-
tently rather than continuously. Most intermittent errors are caused
by poor electric connections or impr oper wiring. In this case, careful
checking of suspected circuits may help prevent the replacement of
good parts.
A visual check only may not find t he cause of the errors. A road test
with CONSULT-III (or GST) or a circuit tester connected should be
performed. Follow the "WORK FLOW" .
Before undertaking actual checks, take a few minutes to talk with a
customer who approaches with a driveability complaint. The cus-
tomer can supply good information about such errors, especially
intermittent ones. Find out what symptoms are present and under
what conditions they occur. A “DIAGNOSTIC WORKSHEET” as
shown on the example (Refer to "Diagnostic Worksheet Chart" )
should be used.
Start your diagnosis by looking for “conventional” errors first. This will
help troubleshoot driveability errors on an electronically controlled
engine vehicle.
Also check related Service bulletins.
WORK FLOW
A good understanding of the malfunction conditions can make troubleshooting faster and more accurate.
In general, each customer feels differently about a malf unction. It is important to fully understand the symp-
toms or conditions for a customer complaint.
Make good use of the two sheets provided, "Information From Customer" and "Diagnostic Worksheet Chart" ,
to perform the best troubleshooting possible.
Work Flow Chart
SAT631IB
SAT632I
SEF234G
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CVT-32
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TROUBLE DIAGNOSIS
DIAGNOSTIC WORKSHEET
Information From Customer
KEY POINTS•
WHAT ..... Vehicle & CVT model
• WHEN ..... Date, Frequencies
• WHERE ..... Road conditions
• HOW ..... Operating conditions, Symptoms
*1. "Information From Customer" *2. "DIAGNOSTIC WORKSHEET" *3. CVT-30
*4.CVT-37*5.CVT-37, CVT-37*6. CVT-41
*7.CVT-48*8.CVT-27*9. CVT-30
*10.CVT-56*11.CVT-133*12. CVT-141
*13.CVT-27*14.CVT-56*15. CVT-133
*16.EC-542
AWDIA0189GB
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TROUBLE DIAGNOSISCVT-33
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Diagnostic Worksheet Chart
Customer name MR/MS Model & Year
VIN
Trans. Model EngineMileage
malfunction Date Manuf. DateIn Service Date
Frequency † Continuous † Intermittent ( times a day)
Symptoms † Vehicle does not move. ( † Any position † Particular position)
† No shift
† Lock-up malfunction
† Shift shock or slip ( † N → D † N → R † Lock-up † Any drive position)
† Noise or vibration
† No pattern select
† Others
()
Malfunction indicator lamp (MIL) † Continuously lit † Not lit
1 † Read the item on cautions concerning fail-safe and understand the customer's complaint. CVT-30
2†
CVT fluid inspection
CVT-37† Leak (Repair leak location.)
† Sta te
† Amount
3 †
Stall test and line pressure test
CVT-37
,
CVT-37
† Stall test
† Torque converter one-way clutch
† Reverse brake
† Forward clutch
† Steel belt †
Engine
† Line pressure low
† Primary pulley
† Secondary pulley
† Line pressure inspection - Suspected part:
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CVT-34
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TROUBLE DIAGNOSIS
4†
Perform road test. CVT-41
4-1.Check before engine is started
CVT-42
†CVT-143, "O/D OFF Indicator Lamp Does Not Come On"
† Perform self-diagnosis. Enter checks for detected items. CVT-48
†CVT-56
†CVT-60
†CVT-62
†CVT-67
†CVT-72
†CVT-76
†CVT-81
†CVT-83
†CVT-84
†CVT-89
†CVT-91
†CVT-96
†CVT-98
†CVT-100
†CVT-105
†CVT-109
†CVT-111
†CVT-113
†CVT-117
†CVT-119
†CVT-121
†CVT-123
†CVT-124
†CVT-129
†CVT-133
4-2. Check at idle
CVT-42
†CVT-145, "Engine Cannot Be Started in "P" and "N" Position"
†CVT-145, "In "P" Position, Vehicle Moves Forward or Backward When Pushed"
†CVT-146, "In "N" Position, Vehicle Moves"
†CVT-146, "Large Shock "N" → "R" Position"
†CVT-147, "Vehicle Does Not Creep Backward in "R" Position"
†CVT-148, "Vehicle Does Not Creep Forward in "D" or "L" Position"
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TROUBLE DIAGNOSISCVT-35
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44-3. Cruise test
CVT-43
†CVT-149, "Vehicle Speed Does Not Change in "L" Position"
†CVT-150, "Vehicle Speed Does Not Change in overdrive-off mode"
†CVT-151, "Vehicle Speed Does Not Change in "D" Position"
†CVT-151, "Vehicle Does Not Decelerate by Engine Brake"
† perform self-diagnosis. Enter checks for detected items. CVT-48
†CVT-56
†CVT-60
†CVT-62
†CVT-67
†CVT-72
†CVT-76
†CVT-81
†CVT-83
†CVT-84
†CVT-89
†CVT-91
†CVT-96
†CVT-98
†CVT-100
†CVT-105
†CVT-109
†C V T- 111
†CVT-113
†CVT-117
†CVT-119
†CVT-121
†CVT-123
†CVT-124
†CVT-129
†CVT-133
5 † Inspect each system for items found to be NG in the self-diagnosis and repair or replace the malfunctioning parts.
6 † Perform all road tests and enter the checks again for the required items. CVT-41
7† For any remaining NG items, perform the “diagnosis procedure” and repair or replace the malfunctioning parts.
8 † Erase the results of the self-diagnosis from the TCM. CVT-27
,
CVT-27
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CVT-36
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TROUBLE DIAGNOSIS
CVT Electrical Parts Location
INFOID:0000000005397788
1. O/D OFF indicator lamp 2. Shift position indicator3. Accelerator pedal position sensor
4. CVT unit harness connector 5. Fuel door release 6. TCM
7. Overdrive control switch
BCIA0033E
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TROUBLE DIAGNOSISCVT-37
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Circuit DiagramINFOID:0000000005397789
Inspections before Trouble DiagnosisINFOID:0000000005397790
CVT FLUID CHECK
Fluid Leakage and Fluid Level Check
ABDWA0192GB
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