NISSAN TIIDA 2007 Service Repair Manual

EC-1232
< ECU DIAGNOSIS >[K9K]
ECM
*: Just at start time. After 1 minute, EGR volume control valve will close and flow start increase.
ENGINE COOLING SUB FUNCTION
Test Condition: Engine Stopped and Ignition Switch ON
Test Condition: Engine at Idle
COLD LOOP SUB FUNCTION
Test Condition: Engine Stopped and Ignition Switch ON
5 Intake air pressure ATOMOS PRESS700 mbar < ATOMOS PRESS <
1100 mbar
Indicates the ambient barometric
pressure in mbar. The sensor is
incorporated in the ECM.In the event of a malfunction, per-
form the trouble diagnosis for DTC
P2226 BARO SENSOR.
6 Fuel rail pressureRAIL PRESSUREIndicates the theoretical pressure
value for optimum engine opera-
tion.In the event of a malfunction, per-
form the trouble diagnosis for DTC
P0190 and P1089 FRP SENSOR.
RAIL PRES SET RAIL PRES SET = 0 bar.
7Air flow AIR FLOW200* mg/st < AIR FLOW < 350
mg/st
Air flow measured by the ECM.NONE
8 EGR EGR POS SE VO540 mV < EGR POS SE VO <
4490 mVIn the event of a malfunction, per-
form the trouble diagnosis for DTC
P0409 EGR VOLUME CONTROL
VALVE CONTROL POSITION
SENSOR.
9 Intake air pressure INLET PRESS - NONE
10Accelerator pedal
positionACCEL/PDL POS0% = ACCEL/PDL POS < 100%
Indicates the percentage of the
pedal position between no load
and full load positionIn the event of a malfunction, per-
form the trouble diagnosis for APP
SENSOR (DTC P0225, and P2120)
and SENSOR POWER SUPPLY
(DTC P0641 and P0651). Order Function Parameter Display and notes Trouble diagnosis
Order Function Parameter Display and notes Trouble diagnosis
1 Fan speed request*FAN ASSEMBLY INACTIVE
NONE. FAN UNIT LOW -
FAN UNIT HIGH -
2 Engine coolant tem-
peratureWATER TEMPClose to ambient temperature
(cold engine).
Indicates the engine coolant tem-
perature in °C. In the event of a malfunction, per-
form the trouble diagnosis for DTC
P0115 ECT SENSOR.
COOLAN TMP SEN V0.1V < COOLAN TMP SEN V <
4.9V
Order Function Parameter Display and notes Trouble diagnosis
1 Fan speed request*FAN ASSEMBLY INACTIVE
NONE. FAN UNIT LOW -
FAN UNIT HIGH -
2 Engine coolant tem-
peratureWATER TEMPIndicates the engine coolant
temperature in °C. In the event of a malfunction, per-
form the trouble diagnosis for DTC
P0115 ECT SENSOR.
COOLAN TMP SEN V0.1V < COOLAN TMP SEN V <
4.9V

ECM
EC-1233
< ECU DIAGNOSIS >[K9K]
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P O Test Condition: Engine at Idle
Order Function Parameter Display and notes Trouble diagnosis
1 Fan speed request*FAN ASSEMBLY INACTIVE
NONE. FAN UNIT LOW -
FAN UNIT HIGH -
2Compressor
engagement requestDMND LNK COMPThe ECM requests the IPDM E/R
(via CAN communication line) to
start the compressor
 ACTIVE: The CAN communica-
tion should not be suspected on
the Automatic Transmission,
IPDM E/R or Intelligent Key unit
or BCM system.
The Intelligent Key unit or BCM
should request the ECM to be
engaged.
The refrigerant pressure sensor
should not be suspected. Satis-
factory engine operating condi-
tions (engine coolant
temperature, engine load etc.).
 INACTIVE: One of the above
conditions has not been met.NONE
3Fast idle speed re-
questACCEL IDL RQ INACTIVE NONE
4 Refrigerant pressureRFRGERNT PRSSIndicates the value in Bar for the
refrigerant fluid in the system.
Default value: 0 Bar.In the event of a malfunction, per-
form the trouble diagnosis for DTC
P0530 REFRUGERANT PRES-
SURE SENSOR.
RFRGERNT FLUID V 0.1V < RFRGERNT FLUID V <
4.8V
5Engine coolant tem-
peratureWATER TEMPClose to ambient temperature
(cold engine).
Indicates the engine coolant tem-
perature in °C.In the event of a malfunction, per-
form the trouble diagnosis for DTC
P0115 ECT SENSOR.
6 Vehicle speed VEHICLE SPEED0 km/h (mph)
Indicates the vehicle speed in km/h
(mph). This parameter is transmit-
ted by the “ABS actuator and elec-
tric unit (control unit)” or
combination meter via CAN com-
munication line.Perform the trouble diagnosis for
CAN communication line. Perform
the trouble diagnosis for “ABS ac-
tuator and electric unit (control
unit)” or combination meter.
Order Function Parameter Display and notes Trouble diagnosis
1 Fan speed request*FAN ASSEMBLY INACTIVE
NONE. FAN UNIT LOW -
FAN UNIT HIGH -

EC-1234
< ECU DIAGNOSIS >[K9K]
ECM
CRUISE CONTROL/SPEED LIMITER SUB FUNCTION
Test Condition: Engine Stopped and Ignition Switch ON
Test Condition: Engine at Idle
PROTECTION SUBFUNCTION
Test Condition: Engine Stopped and Ignition Switch ON
2Compressor
engagement re-
questDMND LNK COMPThe ECM requests the IPDM E/R
(via CAN communication line) to
start the compressor
 ACTIVE: The CAN communica-
tion should not be suspected on
the Automatic Transmission,
IPDM E/R or Intelligent Key unit
or BCM system.
The Intelligent Key unit or BCM
should request the ECM to be en-
gaged.
The refrigerant pressure sensor
should not be suspected. Satis-
factory engine operating condi-
tions (engine coolant
temperature, engine load etc.).
 INACTIVE: One of the above
conditions has not been met.NONE
3Fast idle speed re-
questACCEL IDL RQINACTIVE
or
ACTIVE
(Air conditioning is operate)NONE
4Refrigerant pres-
sureRFRGERNT PRSSIndicates the value in Bar for the re-
frigerant fluid in the system.
Default value: 0 Bar.In the event of a malfunction, per-
form the trouble diagnosis for DTC
P0530 REFRUGERANT PRES-
SURE SENSOR.
RFRGERNT FLUID V 0.1V < RFRGERNT FLUID V< 4.8V
5Engine coolant
temperatureWATER TEMPIndicates the engine coolant tem-
perature in °C.In the event of a malfunction, per-
form the trouble diagnosis for DTC
P0115 ECT SENSOR.
6 Vehicle speed VEHICLE SPEED0 km/h (mph)
Indicates the vehicle speed in km/h
(mph). This parameter is transmit-
ted by the “ABS actuator and elec-
tric unit (control unit)” or
combination meter via CAN com-
munication line.Perform the trouble diagnosis for
CAN communication line. Perform
the trouble diagnosis for “ABS actu-
ator and electric unit (control unit)”
or combination meter. Order Function Parameter Display and notes Trouble diagnosis
Order Function Parameter Display and notes Trouble diagnosis
1Cruise control/speed
limiterCRS CN/S LMTR INACTIVEIn the event of a malfunction, per-
form the trouble diagnosis for DTC
P0575 ASCD STEERING SWITCH.
Order Function Parameter Display and notes Trouble diagnosis
1Cruise control/speed
limiterCRS CN/S LMTR INACTIVEIn the event of a malfunction, perform
the trouble diagnosis for DTC P0575
ASCD STEERING SWITCH.

ECM
EC-1235
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Order Function Parameter Display and notes Trouble diagnosis
1 Immobilizer ENGINE IMMOBIIndicates the status of the immo-
bilizer system.
 INACTIVE: The ECM has rec-
ognized the immobilizer code
transmitted by the Intelligent
Key unit or BCM.
 ACTIVE: The ECM does not
recognize the immobilizer code
transmitted by the Intelligent
Key unit or BCM.If ACTIVE, perform the trouble diag-
nosis for NATS.
2 Battery voltage BATTERY VOLTAGE12V < BATTERY VOLTAGE <
14.4VIn the event of a malfunction, perform
the trouble diagnosis for CHARGING
SYSTEM.
3 Code programmed CODE PROGRAMStates whether the immobilizer
code has been programmed by
the computer or not.
 YES: Code programmed
 NO: Code not programmed by
the ECM.If NO, replace ECM.
Order Function Parameter Display and notes Trouble diagnosis
1 Immobilizer ENGINE IMMOBIIndicates the status of the immobiliz-
er system.
 INACTIVE: The ECM has recog-
nized the immobilizer code trans-
mitted by the Intelligent Key unit or
BCM.
 ACTIVE: The ECM does not recog-
nize the immobilizer code transmit-
ted by the Intelligent Key unit or
BCM.If ACTIVE, perform the trouble di-
agnosis for NATS.
2 Battery voltage BATTERY VOLTAGE 13V < BATTERY VOLTAGE < 16VIn the event of a malfunction, per-
form the trouble diagnosis for
CHARGING SYSTEM.
3 Code programmed CODE PROGRAMStates whether the immobilizer code
has been programmed by the com-
puter or not.
 YES: Code programmed
 NO: Code not programmed by the
ECM.If NO, replace ECM.

EC-1236
< ECU DIAGNOSIS >[K9K]
ECM
Wiring Diagram - ENGINE CONTROL SYSTEM -
INFOID:0000000001162696
ALBWA0168GB

ECM
EC-1237
< ECU DIAGNOSIS >[K9K]
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ALBWA0169GB

EC-1238
< ECU DIAGNOSIS >[K9K]
ECM
ALBWA0170GB

ECM
EC-1239
< ECU DIAGNOSIS >[K9K]
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ALBWA0171GB

EC-1240
< ECU DIAGNOSIS >[K9K]
ECM
ALBWA0172GB

ECM
EC-1241
< ECU DIAGNOSIS >[K9K]
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ALBWA0173GB