cooling NISSAN TIIDA 2009 Service Workshop Manual

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DTC Confirmation Procedure
INFOID:0000000004537138
NOTE:
If DTC Confirmation Procedure has been previously conduc ted, always turn ignition switch OFF and wait at
least 10 seconds before conducting the next test.
WITH CONSULT-III
1. Turn ignition switch ON and wait at least 5 seconds.
2. Check DTC.
3. If DTC is detected, go to EC-676, " Diagnosis Procedure " .
Detected items Engine operating condition in fail-safe mode
Engine coolant temper- ature sensor circuit Engine coolant temperature will be determined by ECM based on the following condition.
CONSULT-III displays the engine coolant temperature decided by ECM.
Condition Engine coolant temperature decided
(CONSULT-III display)
Just as ignition switch is turned ON or START 40 °C (104 °F)
Approx. 4 minutes or more after engine starting. 80 °C (176 °F)
Except as shown above 40 - 80
°C (104 - 176 °F)
(Depends on the time)
When the fail-safe system for engine coolant temperature sensor is activated, the cooling fan operates while
engine is running.

.
• If DTC P0500 is displayed with DTC U1010, first pe rform the trouble diagnosis for DTC U1010. Refer
to EC-635 .
The vehicle speed signal is sent from “ABS actuator and electric unit (control unit)” or combination meter
through CAN communication line.
On Board Diagn osis Logic INFOID:0000000004537365
FAIL-SAFE MODE
When the malfunction is detected, ECM enters fail-safe mode.
DTC Confirmation Procedure INFOID:0000000004537366
CAUTION:
Always drive vehicle at a safe speed.
NOTE:
If DTC Confirmation Procedure has been previously conduc ted, always turn ignition switch OFF and wait at
least 10 seconds before conducting the next test.
TESTING CONDITION:
Steps 1 and 2 may be conducted with the drive wheels li fted in the shop or by driving the vehicle. If a
road test is expected to be easier, it is unnecessary to lift the vehicle.
WITH CONSULT-III
1. Start engine.
2. Read “VHCL SPEED SE” in “DATA MONITOR” m ode with CONSULT-III. The vehicle speed on CON-
SULT-III should exceed 10 km/h (6 MPH) when rotating wheels with suitable gear position.
If NG, go to EC-867, " Diagnosis Procedure " .
If OK, go to following step.
3. Select “DATA MONITOR” mode with CONSULT-III.
4. Warm engine up to normal operating temperature.
5. Maintain the following conditions for at least 60 consecutive seconds.
6. Check 1st trip DTC. DTC No. Trouble diagnosis name DTC detecting condition Possible cause
P0500
0500 Vehicle speed sensor The almost 0 km/h (0 MPH) signal from
vehicle speed sensor is sent to ECM even
when vehicle is being driven. • Harness or connectors
(CAN communication line is open or shorted.)
• Harness or connectors (Vehicle speed signal circuit is open or shorted)
• ABS actuator and electric unit (control unit)
• Combination meter Detected item Engine operating condition in fail-safe mode
Vehicle speed sensor When the fail-safe system for vehicle speed sensor is activated, the cooling fan operates
(High) while engine is running. ENG SPEED More th
an 1,600 rpm
COOLAN TEMP/S More than 70 °C (158 °F)
B/FUEL SCHDL 5.5 - 31.8 msec
Shift lever Suitable position
PW/ST SIGNAL OFF

EC-886< SERVICE INFOMATION >
[MR TYPE 1]
DTC P1217 ENGINE
OVER TEMPERATURE
DTC P1217 ENGINE OVER TEMPERATURE
System Description INFOID:0000000004537393
SYSTEM DESCRIPTION
NOTE:
• If DTC P1217 is displayed with DTC U1000 or U1001, first perform the trouble diagnosis for DTC
U1000, U1001. Refer to EC-633 .
• If DTC P1217 is displayed with DTC U1010, first pe rform the trouble diagnosis for DTC U1010. Refer
to EC-635 .
Cooling Fan Control
*1: The ECM determines the start signal status by the signals of engine speed and battery voltage.
*2: This signal is sent to ECM through CAN communication line.
The ECM controls the cooling fan corresponding to the vehicle speed, engine coolant temperature, refrigerant
pressure, and air conditioner ON signal. The contro l system has 3-step control [HIGH/LOW/OFF].
Cooling Fan Operation
Models with A/C
Models without A/C Sensor Input Signal to ECM ECM function Actuator
Crankshaft position sensor (POS)
Camshaft position sensor (PHASE) Engine speed*
1
Cooling fan
control IPDM E/R
(Cooling fan relays)
Battery
Battery voltage*1
ABS actuator and electric unit (control unit)
Vehicle speed*2
Combination meter
Engine coolant temperature sensor Engine coolant temperature
Air conditioner switch Air conditioner ON signal*2
Refrigerant pressure sensor Refrigerant pressure PBIB2483E
PBIB3335E

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Cooling Fan Relay Operation
The ECM controls cooling fan relays in the IPDM E/R through CAN communication line.
CONSULT-III Reference Val ue in Data Monitor Mode INFOID:0000000004537394
Specification data are reference values.
On Board Diagnosis Logic INFOID:0000000004537395
If the cooling fan or another component in the cooli ng system malfunctions, engine coolant temperature will
rise. When the engine coolant temperature reaches an abnormally high temperature condition, a malfunction
is indicated.
This self-diagnosis has the on e trip detection logic.
CAUTION:
When a malfunction is in dicated, be sure to replace the coolant. Refer to CO-35, " Changing Engine
Coolant " . Also, replace the engine oil. Refer to
LU-17, " Changing Engine Oil " .
1. Fill radiator with coolant up to specified level with a filling speed of 2 liters per minute. Be sure to
use coolant with the proper mixture ratio. Refer to MA-15, " Anti-freeze Coolant Mixture Ratio " .
2. After refilling coolant, run engine to ensure that no water-flow noise is emitted.
Overall Function Check INFOID:0000000004537396
Use this procedure to check the overall function of the cooling fan. During this check, a DTC might not be con-
firmed.
WARNING: Cooling fan speed
Cooling fan relay
1 2 3
Stop (OFF) OFF OFF OFF
Low (LOW) ON OFF OFF
High (HI) ON ON ON MONITOR ITEM CONDITION SPECIFICATION
AIR COND SIG • Engine: After warming up, idle
the engine Air conditioner switch: OFF OFF
Air conditioner switch: ON
(Compressor operates.) ON
COOLING FAN • Engine: After warming up, idle
the engine
• Air conditioner switch: OFF Engine coolant temperature: 97
°C
(207 °F) or less OFF
Engine coolant temperature: Between
98 °C (208 °F) and 99 °C (210 °F) LOW
Engine coolant temperature: 100 °C
(212 °F) or more HIGHDTC No. Trouble diagnosis name DTC detecting condition Possible cause
P1217
1217 Engine over temperature
(Overheat) • Cooling fan does not operate properly (Over-
heat).
• Cooling fan system does not operate properly (Overheat).
• Engine coolant was not added to the system using the proper filling method.
• Engine coolant is not within the specified
range. • Harness or connectors
(Cooling fan circuit is open or shorted.)
• Cooling fan
• IPDM E/R (Cooling fan relays)
• Radiator hose
• Radiator
• Reservoir tank
• Radiator cap
• Water pump
• Thermostat
• Water control valve
For more information, refer to EC-893, " Main 13 Causes of Overheating " .

EC-888< SERVICE INFOMATION >
[MR TYPE 1]
DTC P1217 ENGINE
OVER TEMPERATURE
Never remove the radiator cap when the engine is hot. Serious burns could be caused by high pres-
sure fluid escaping from the reser voir tank or the radiator.
Wrap a thick cloth around cap. Carefully remove the cap by turning it a quarter turn to allow built-up
pressure to escape. Then turn the cap all the way off.
WITH CONSULT-III
1. Check the coolant level in the reservoir tank and radiator. Allow engine to cool before checking coolant level.
If the coolant level in the reservoir tank and/or radiator is below
the proper range, skip the following steps and go to EC-890," Diagnosis Procedure " or
EC-890, " Diagnosis Procedure " .
2. Confirm whether customer filled the coolant or not. If customer
filled the coolant, skip the following steps and go to EC-890," Diagnosis Procedure " or
EC-890, " Diagnosis Procedure " .
3. Turn ignition switch ON.
4. Perform “COOLING FAN” in “ACTIVE TEST” mode with CON- SULT-III.
5. If the results are NG, go to EC-890, " Diagnosis Procedure " or
EC-890, " Diagnosis Procedure " .
WITH GST
1. Check the coolant level in the reservoir tank and radiator. Allow engine to cool before checking coolant level.
If the coolant level in the reservoir tank and/or radiator is below
the proper range, skip the following steps and go to EC-890," Diagnosis Procedure " .
2. Confirm whether customer filled the coolant or not. If customer
filled the coolant, skip the following steps and go to EC-890," Diagnosis Procedure " .
3. Perform IPDM/ER auto active te st and check cooling fan motor
operation. Refer to PG-19, " Auto Active Test " .
4. If NG, go to EC-890, " Diagnosis Procedure " . SEF621W
SEF621W

EC
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NG >> GO TO 8. Auto Active Test " .
2. Make sure that cooling fan operates at each speed.
OK or NG OK >> GO TO 4.
NG >> GO TO 8. Inspection " .
OK or NG OK >> GO TO 5.
NG >> Check the following for leak. Refer to CO-35, " Inspection " .
• Hose
• Radiator
• Water pump Checking Radiator Cap " .
OK or NG OK >> GO TO 6.
NG >> Replace radiator cap. .)
• Water control valve. (Refer to CO-47 .)
• Engine coolant temperature sensor. (Refer to EC-678 .)
OK or NG OK >> GO TO 7.
NG >> Replace malfunctioning component. Main 13 Causes of Overheating " .
>> INSPECTION END

EC-892< SERVICE INFOMATION >
[MR TYPE 1]
DTC P1217 ENGINE
OVER TEMPERATURE
3. Check voltage between IPDM E/R terminal 22 and ground with CONSULT-III or tester.
OK or NG OK >> GO TO 10.
NG >> GO TO 9. 9.
DETECT MALFUNCTIONING PART
Check the following.
• 50A fusible link
• Harness for open or short between IPDM E/R and battery
>> Repair open circuit or short to ground in harness or connectors. 10.
CHECK IPDM E/R GROUND CIRCUIT FOR OPEN AND SHORT
1. Turn ignition switch OFF.
2. Disconnect IPDM E/R harness connectors E46 and E48.
3. Check harness continuity between IPDM E/R terminals 59, 39 and ground.
Refer to Wiring Diagram.
4. Also check harness for short to power.
OK or NG OK (Models with A/C)>>GO TO 11.
OK (Models without A/C)>>GO TO 13.
NG >> Repair open circuit or short to power in harness or connectors. 11.
CHECK COOLING FAN MOTOR CIRCUIT
1. Disconnect cooling fan motor harness connector.
2. Check harness continuity between the followings;
Cooling fan motor terminal 1 and IPDM E/R terminals 20, 24.
Cooling fan motor terminal 2 and ground.
Refer to wiring diagram.
3. Also check harness for short to ground and short to power.
OK or NG OK >> GO TO 15.
NG >> GO TO 12. 12.
DETECT MALFUNCTIONING PART
Check the following.
• Harness for open or short between cooling fan motor and IPDM E/R
• Harness for open or short between cooling fan motor and ground
• Resistor E5
>> Repair open circuit or short to ground or short to power in harness or connectors. 13.
CHECK COOLING FAN MOTOR CIRCUIT
1. Disconnect cooling fan motor harness connector.
2. Check harness continuity between the followings; Cooling fan motor terminal 1 and IPDM E/R terminal 20.Voltage: Battery voltage
PBIB2067E
Continuity should exist.
Continuity should exist.

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Cooling fan motor terminal 2 and IPDM E/R terminal 24.
Cooling fan motor terminal 3 and IPDM E/R terminal 23.
Cooling fan motor terminal 4 and ground.
Refer to wiring diagram.
3. Also check harness for short to ground and short to power.
OK or NG OK >> GO TO 15.
NG >> GO TO 14. Component Inspection " .
OK or NG OK >> GO TO 16.
NG >> Replace cooling fan motor. .
OK or NG OK >> Replace IPDM E/R. Refer to
PG-27, " Removal and Installation of IPDM E/R " .
NG >> Repair or replace harness or connector.
Main 13 Causes of Overheating INFOID:0000000004537399
Continuity should exist.
Engine Step Inspection item Equipment Standard Reference page OFF 1 • Blocked radiator • Blocked condenser
• Blocked radiator grille
• Blocked bumper • Visual No blocking —
2 • Coolant mixture • Coolant tester See MA-15, " Anti-freeze Coolant Mixture Ratio " .
3 • Coolant level • Visual Coolant up to MAX level in reservoir tank and radiator
filler neck See
CO-35, " Inspection " .
4 • Radiator cap • Pressure tester See CO-40, " Checking Radiator Cap " .
ON* 2
5 • Coolant leaks • Visual No leaks See CO-35, " Inspection " .
ON* 2
6 • Thermostat • Touch the upper and
lower radiator hosesBoth hoses should be hot See
CO-45 , and
CO-47 ON*
1
7 • Cooling fan • CONSULT-III Operating See trouble diagnosis for
DTC P1217 (EC-890, " Di-
agnosis Procedure " ).
OFF 8 • Combustion gas leak • Color checker chemical tester 4 Gas analyzerNegative —
ON* 3
9 • Coolant temperature
gauge • Visual Gauge less than 3/4 when
driving —
• Coolant overflow to res- ervoir tank • Visual No overflow during driving
and idling See
CO-35, " Changing
Engine Coolant " .

EC-894< SERVICE INFOMATION >
[MR TYPE 1]
DTC P1217 ENGINE
OVER TEMPERATURE
*1: Turn the ignition switch ON.
*2: Engine running at 3,000 rpm for 10 minutes.
*3: Drive at 90 km/h (55 MPH) for 30 minutes and then let idle for 10 minutes.
*4: After 60 minutes of cool down time.
For more informat ion, refer to CO-32 .
Component Inspection INFOID:0000000004537400
COOLING FAN MOTOR
Model with A/C
1. Disconnect cooling fan motor harness connectors.
2. Supply cooling fan motor terminals with battery voltage and check operation.
Cooling fan motor should operate.
If NG, replace cooling fan motor.
Models without A/C
1. Disconnect cooling fan motor harness connectors.
2. Supply cooling fan motor terminals with battery voltage and check operation.
Cooling fan motor should operate.
If NG, replace cooling fan motor. OFF*
4
10 • Coolant return from res-
ervoir tank to radiator • Visual Should be initial level in
reservoir tank See
CO-35, " Inspection " .
OFF 11 • Water control valve • Remove and inspect
the valve Within the specified value See
CO-47, " Removal
and Installation "
OFF 12 • Cylinder head • Straight gauge feeler
gauge0.1 mm (0.004 in) Maxi-
mum distortion (warping) See
EM-185 .
13 • Cylinder block and pis- tons • Visual No scuffing on cylinder
walls or piston See
EM-199 .
Engine Step Inspection item Equipment Standard Reference page Terminals
(+) (-)
Cooling fan motor 1 2 SEF888V
Speed
terminals
(+) ( −)
Cooling fan motor Low 1 4
2 3
High 1 and 2 3 and 4 SEF734W

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REFRIGERANT PRESSURE SENSOR
Component Description INFOID:0000000004537540
The refrigerant pressure sensor (1) is installed at the condenser of
the air conditioner system. The sens or uses an electrostatic volume
pressure transducer to convert refrigerant pressure to voltage. The
voltage signal is sent to ECM, and ECM controls cooling fan system.
• : Vehicle front