2010 NISSAN TIIDA Output speed sensor

DTC P2A00 A/F SENSOR 1EC-989
< SERVICE INFORMATION > [MR18DE]
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DTC P2A00 A/F SENSOR 1
Component DescriptionINFOID:0000000005532886
The air fuel ratio (A/F) sensor 1 is a planar one-cell limit current sen-
sor. The sensor element of the A/F sensor 1 is composed an elec-
trode layer, which transports ions. It has a heater in the element.
The sensor is capable of precise m
easurement = 1, but also in the
lean and rich range. Together with its control electronics, the sensor
outputs a clear, continuous signal throughout a wide range.
The exhaust gas components diffuse through the diffusion layer at
the sensor cell. An electrode layer is applied voltage, and this current
relative oxygen density in lean. Also this current relative hydrocar-
bon density in rich.
Therefore, the A/F sensor 1 is able to indicate air fuel ratio by this
electrode layer of current. In addition, a heater is integrated in the
sensor to ensure the required operating temperature of about 800 °C
(1,472 °F).
CONSULT-III Reference Val ue in Data Monitor ModeINFOID:0000000005532887
Specification data are reference values.
On Board Diagnosis LogicINFOID:0000000005532888
To judge the malfunction, the A/F signal computed by ECM from the A/F sensor 1 signal is monitored not to be
shifted to LEAN side or RICH side.
DTC Confirmation ProcedureINFOID:0000000005532889
NOTE:
If DTC Confirmation Procedure has been previously conducted, always turn ignition switch OFF and wait at
least 10 seconds before conducting the next test.
TESTING CONDITION:
Before performing the following procedure, confirm that battery voltage is more than 11 V at idle.
WITH CONSULT-III
1. Start engine and warm it up to normal operating temperature.
2. Turn ignition switch OFF and wait at least 10 seconds.
PBIB3353E
PBIB3354E
Monitor itemConditionSpecification
A/F SEN1 (B1) • Engine: After warming upMaintaining engine speed at
2,000 rpm Fluctuates around 2.2 V
DTC No. Trouble diagnosis name
DTC detecting conditionPossible Cause
P2A00
2A00 Air fuel ratio (A/F) sensor 1
circuit range/performance • The output voltage computed by ECM from the
A/F sensor 1 signal is shifted to the lean side for
a specified period.
• The A/F signal computed by ECM from the A/F
sensor 1 signal is shifted to the rich side for a
specified period. • Air fuel ratio (A/F) sensor 1
• Air fuel ratio (A/F) sensor 1 heater
• Fuel pressure
• Fuel injector
• Intake air leaks
Revision: January 20102010 Versa

EC-992
< SERVICE INFORMATION >[MR18DE]
DTC P2A00 A/F SENSOR 1
Do not use ECM ground terminals when measuring input/output voltage. Doi
ng so may result in dam-
age to the ECM's transistor. Use a ground ot her than ECM terminals, such as the ground.
: Average voltage for pulse signal (Actual pulse signal can be confirmed by oscilloscope.)
Diagnosis ProcedureINFOID:0000000005532891
1.CHECK GROUND CONNECTIONS
1. Turn ignition switch OFF.
2. Loosen and retighten ground screws on the body. Refer to EC-638, "
Ground Inspection".
OK or NG
OK >> GO TO 2.
NG >> Repair or replace ground connections.
2.RETIGHTEN AIR FUEL RATIO (A/F) SENSOR 1
Loosen and retighten the air fuel ratio (A/F) sensor 1. Refer to EM-140, "
Removal and Installation".
>> GO TO 3.
3.CHECK FOR INTAKE AIR LEAK
1. Start engine and run it at idle.
2. Listen for an intake air leak after the mass air flow sensor.
OK or NG
OK >> GO TO 4.
NG >> Repair or replace.
TERMI- NAL
NO. WIRE
COLOR ITEM
CONDITION DATA (DC Voltage)
3 G A/F sensor 1 heater [Engine is running]
•
Warm-up condition
• Idle speed (More than 140 seconds after starting
engine) Approximately 2.9 - 8.8 V
49 W A/F sensor 1 [Engine is running]
•
Warm-up condition
• Engine speed: 2,000 rpm Approximately 1.8 V
Output voltage varies with air fuel
ratio.
53 B A/F sensor 1 [Ignition switch: ON] Approximately 2.2 V
PBIA8148J
:Vehicle front
1. Body ground E24 2. Engine ground F93. Engine ground F16
4. Body ground E15
BBIA0698E
Revision: January 20102010 Versa

SERVICE DATA AND SPECIFICATIONS (SDS)EC-1035
< SERVICE INFORMATION > [MR18DE]
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SERVICE DATA AND SPECIFICATIONS (SDS)
Fuel PressureINFOID:0000000005532926
Idle Speed and Ignition TimingINFOID:0000000005532927
*: Under the following conditions:
• Air conditioner switch: OFF
• Electric load: OFF (Lights, heater fan & rear window defogger)
• Steering wheel: Kept in straight-ahead position
Calculated Load ValueINFOID:0000000005532928
Mass Air Flow SensorINFOID:0000000005532929
*: Engine is warmed up to normal operating temperature and running under no load.
Intake Air Temperature SensorINFOID:0000000005532930
Engine Coolant Temperature SensorINFOID:0000000005532931
Fuel pressure at idle
Approximately 350 kPa (3.57 kg/cm2, 51 psi)
Target idle speedA/T No load* (in P or N position)
700 ± 50 rpm
CVT No load* (In P or N position)
M/T No load* (in Neutral position)
Air conditioner: ON A/T In P or N position
850 rpm or more
CVT In P or N position
M/T In Neutral position
Ignition timing A/T In P or N position
13 ± 5 ° BTDC
CVT In P or N position
M/T In Neutral position
Calculated load value (Using CONSULT-III or GST)
At idle 10 - 35 %
At 2,500 rpm 10 - 35 %
Supply voltageBattery voltage (11 - 14 V )
Output voltage at idle 1.0 - 1.3* V
Mass air flow (Using CONSULT-III or GST) 1.0 - 4.0 g·m/sec at idle*
2.0 - 10.0 g·m/sec at 2,500 rpm*
Temperature [ °C ( °F)] Resistance (k Ω)
25 (77) 1.800 - 2.200
Temperature [°C ( °F)] Resistance (k Ω)
20 (68) 2.1 - 2.9
50 (122) 0.68 - 1.00
90 (194) 0.236 - 0.260
Revision: January 20102010 Versa

LAN-28
< SERVICE INFORMATION >[CAN]
CAN COMMUNICATION SYSTEM
*1: A/T models
*2: CVT models
*3: Models with VDC
*4: Models for Canada
*5: Models for USA
*6: Models without ABS
NOTE:
CAN data of the air bag diagnosis sensor unit is not used by usual service work, thus it is omitted.
KEY warning lamp signal
T R
LOCK warning lamp signal T R
Panic alarm request signal RT
Fuel level sensor signal RT
Overdrive control switch signal TR R
Parking brake switch signal
*3TR
Stop lamp switch signal T R R
Vehicle speed signal RRRR T
RRR T R
R
*6T*6
Steering angle sensor signal*3TR
ABS warning lamp signal RT
Brake warning lamp signal RT
SLIP indicator lamp signal
*3RT
VDC OFF indicator lamp signal
*3RT
VDC warning lamp signal
*3RT
A/T check indicator signal RT
A/T self-diagnosis signal R T
Input speed signal R T
OD OFF indicator signal RT
Output shaft revolution signal R T T
Shift position indicator signal R
R
*3TT
CVT self-diagnosis signal R T
Input shaft revolution signal R T
OD OFF indicator signal RT
Front wiper stop position signal R T
High beam status signal R T
Low beam status signal R T
Oil pressure switch signal R RR T
Rear window defogger control signal R T
Signal name/Connecting unit
ECM
BCM
EPS
I-KEY M&A
STRG ABS
TCM
*1
TCM
*2
IPDM-E
Revision: January 20102010 Versa

PG-46
< SERVICE INFORMATION >
HARNESS
BODY HARNESS (HATCHBACK)
E3 F6 GR/2 : Engine coolant temperature sensor F5 F30 B/8 : Terminal cord assembly
D2 F7 B/6 : Electric throttle control actuatorF2 F31 B/6 : Mass air flow sensor
G4 F8 SMJ : To E8 C5 F32 GR/1 : Oil pressure switch
B4 F9 — : Engine ground F5 F33 GR/6 : To E19
G2 F10 GR/32 : ECM C3 F34 GR/3 : Ignition coil No. 1 (with power transistor)
G2 F11 BR/48 : ECM C3 F35 GR/3 : Ignition coil No. 2 (with power transistor)
D3 F12 GR/4 : Air fuel ratio (A/F) sensor 1 C3 F36 GR/3 : Ignition coil No. 3 (with power transistor)
E2 F13 B/4 : Heated oxygen sensor 2 C3 F37 GR/3 : Ignition coil No. 4 (with power transistor)
C4 F14 B/2 : Knock sensor E5 F38 BR/3 : Output Speed sensor
D3 F15 B/3 : Crankshaft position sensor (POS) E4 F39 — : Fusible link box (battery)
C4 F16 — : Engine ground E4 F40 — : Fusible link box (battery)
B4 F17 GR/2 : Fuel injector No. 1 E2 F41 GR/2 : Vehicle speed sensor
C4 F18 GR/2 : Fuel injector No. 2 F5 F45 GR/3 : Input speed sensor
C4 F19 GR/2 : Fuel injector No. 3E5 F46 GR/22 : CVT unit
D4 F20 GR/2 : Fuel injector No. 4 E5 F47 B/3 : Input speed sensor
D4 F21 B/3 : Camshaft position sensor (PHASE) E3 F48 B/3 : Secondary speed sensor (with M/T)
C3 F22 GR/2 : EVAP canister purge volume control
solenoid valve E5 F52 G/8 : Transmission range switch (with CVT)
B3 F23 GR/2 : Intake valve timing control solenoid valve
Revision: January 20102010 Versa

EPS SYSTEMSTC-5
< SYSTEM DESCRIPTION > [EPS]
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SYSTEM DESCRIPTION
EPS SYSTEM
System DiagramINFOID:0000000005600156
System DescriptionINFOID:0000000005600157
• EPS control unit performs an arithmetical operation on data, such as steering wheel turning force (sensor
signal) from the torque sensor, vehicle speed signal, etc. Then it generates an optimum assist torque signal
to the EPS motor according to the driving condition.
• EPS control unit decreases the output signal to EPS mo tor while extremely using the power steering func-
tion (e.g., full steering) consecutively for protec ting EPS motor and EPS control unit (Overload protection
control). While activating overload protection control, the assist torque gradually decreases, and the steering
wheel turning force becomes heavy. The normal assist torque reactivates by no steering.
• In case of an error in the electrical system, the fail- safe function stops output signals to the EPS motor. Then
the previous state is changed to the manual steering state.
• Self-diagnosis can be done with CONSULT-III.
• EPS control unit will decrease assistance under the following 2 conditions.
- Extensive steering at low speed will cause the ECU and MOTOR to heat up, once temperature reaches crit-
ical point ECU will reduce current to reduce heat up. System will recover as temperature lowers (reduced or
no assistance).
- Holding steering on rack-end (full lock) for 1 second will cause the system to engage rack-end protection. This reduces assistance down to 50% in order to prevent heat up. Assistance is immediately returned to
100% when steering released or turned away from rack-end.
- Communicates the signal from each control unit via CAN communication.
WGIA0187E
Control unit Signal status
ECM Transmits mainly the follow
ing signals to EPS control uni t via CAN communication.
Engine status signal
ABS actuator and electric unit
(control unit) Transmits mainly the follow
ing signals to EPS control uni t via CAN communication.
Vehicle speed signal
Revision: January 20102010 Versa

STC-8
< SYSTEM DESCRIPTION >[EPS]
DIAGNOSIS SYSTEM (EPS CONTROL UNIT)
DIAGNOSIS SYSTEM
(EPS CONTROL UNIT)
CONSULT-III FunctionINFOID:0000000005600160
FUNCTION
CONSULT-III can display each diagnostic item us ing the diagnostic test modes shown following.
ECU IDENTIFICATION
Displays the part number stored in the control unit.
SELF-DIAG RESULTS MODE
Display Item List
Refer to STC-24, "DTC Index".
CAUTION:
If “CAN COMM CIRCUIT [U1000]” is disp layed with other DTCs, first perform the trouble diagnosis for
CAN communication line.
DATA MONITOR MODE
Display Item List
*1: Almost in accordance with the value of MOTOR SIG. It is not a malfunction though these values are not accorded when steerin g
quickly.
*2: It is not a malfunction, though it might not be corresponding just after ignition switch in turned ON. Diagnostic test mode
Function
ECU identification Steering column assembly number can be read.
Self diagnostic result Self-diagnostic results can be read and erased quickly.
Data monitor Input/Output data in the EPS control unit can be read.
Monitor item (Unit) Remarks
MOTOR VOL (V) Displays the power supply voltage for EPS control unit.
TORQUE SENSOR (Nm) Displays steering wheel turning force detected by torque sensor.
MOTOR CURRENT (A) Displays the current value consumed by EPS motor.
MOTOR SIG (A)
*1Displays the current commanded value to EPS motor.
DERATING STAT (ON/OFF%) Protect overload status is displayed.
VEHICLE SPEED (km/h) or (MPH)
*2Vehicle speed is displayed from vehicle speed signal via CAN communication.
WARNING LAMP (On/Off) EPS warning lamp control status is displayed.
ENGINE STATUS (Stop/Run) Engine speed is displayed from engine status signal via CAN communication.
Revision: January 20102010 Versa

STC-20
< ECU DIAGNOSIS INFORMATION >[EPS]
EPS CONTROL UNIT
ECU DIAGNOSIS INFORMATION
EPS CONTROL UNIT
Reference ValueINFOID:0000000005600190
VALUES ON THE DIAGNOSIS TOOL
CAUTION:
The output signal indicates the EPS control unit calculation data. Th
e normal values will be displayed
even in the event that the output circuit (harness) is open.
*1: Almost in accordance with the value of MOTOR SIG. It is not a malfunction though these values are not accorded when steerin g
quickly.
*2: It is not a malfunction, though it might not be corresponding just after ignition switch in turned ON.
TERMINAL LAYOUT
PHYSICAL VALUES
Monitor item Display content Data monitor
Condition Display value
MOTOR VOL Power supply voltage for
EPS control unit Ignition switch: ON
Battery voltage
TORQUE SENSOR Steering wheel turning
force Engine runningSteering wheel: Not steering
(There is no steering force)
Approx. 0 Nm
Steering wheel: Right turn Positive value (Nm)
Steering wheel: Left turn Negative value (Nm)
MOTOR CURRENT Consumption current of
EPS motor Engine runningSteering wheel: Not steering
(There is no steering force)
Approx. 0 A
Steering wheel: Right or left
turn Displays consumption cur-
rent of EPS motor (A)
*1
MOTOR SIG
Command current to
EPS motor Engine runningSteering wheel: Not steering
(There is no steering force)
Approx. 0 A
Steering wheel: Right turn Negative value (A)
Steering wheel: Left turn Positive value (A)
DERATING STAT Displays overload sta-
tus.
Engine running
Off
VEHICLE SPEED Vehicle speed Vehicle stopped
0 km/h (0 mph)
While driving Approximately equal to the
indication on speedometer
(inside of
±10%)
*2
WARNING LAMP EPS warning lamp con-
dition EPS warning lamp: ON
On
EPS warning lamp: OFF Off
ENGINE STATUS Engine status Engine not running
Stop
Engine running Run
SGIA1624E
Revision: January 20102010 Versa