2009 NISSAN LATIO ignition

EC-1414< SERVICE INFOMATION >
[MR TYPE 2]
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.

EC-1416< SERVICE INFOMATION >
[MR TYPE 2]
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:0000000004500286
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 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

DTC P1225 TP SENSOR
EC-1417
< SERVICE INFOMATION >
[MR TYPE 2] C
D E
F
G H
I
J
K L
M A EC
NP
O
DTC P1225 TP SENSOR
Component Description INFOID:0000000004500287
Electric throttle control actuator consists of throttle control motor,
throttle position sensor, etc. The throttle position sensor responds to
the throttle valve movement.
The throttle position sensor has two sensors. These sensors are a
kind of potentiometers which transform the throttle valve position into
output voltage, and emit the voltage signal to the ECM. In addition,
these sensors detect the opening and closing speed of the throttle
valve and feed the voltage signals to the ECM. The ECM judges the
current opening angle of the throttle valve from these signals and the
ECM controls the throttle control motor to make the throttle valve
opening angle properly in response to driving condition.
On Board Diagnosis Logic INFOID:0000000004500288
The MIL will not light up for this diagnosis.
DTC Confirmation Procedure INFOID:0000000004500289
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:
Before performing the following procedure, confirm that battery voltage is more than 10V at idle.
1. Turn ignition switch ON.
2. Turn ignition switch OFF and wait at least 10 seconds.
3. Turn ignition switch ON.
4. Check 1st trip DTC.
5. If 1st trip DTC is detected, go to EC-1417, " Diagnosis Procedure " .
Diagnosis Procedure INFOID:00000000045002901.
CHECK ELECTRIC THROTTLE CONTROL ACTUATOR VISUALLY
1. Turn ignition switch OFF.
2. Remove the intake air duct.
3. Check if foreign matter is c aught between the throttle valve (1)
and the housing.
- : Vehicle front
OK or NG OK >> GO TO 2.
NG >> Remove the foreign matter and clean the electric throttle
control actuator inside. 2.
REPLACE ELECTRIC THROTTLE CONTROL ACTUATOR
1. Replace the electric throttle control actuator.
2. Perform EC-1084, " Throttle Valve Closed Position Learning " .
3. Perform EC-1084, " Idle Air Volume Learning " . PBIB0145E
DTC No. Trouble diagnosis name DTC detecting condition Possible cause
P1225
1225 Closed throttle position
learning performance Closed throttle position learning value is exces-
sively low. • Electric throttle control actuator
(TP sensor 1 and 2) BBIA0711E

DTC P1226 TP SENSOR
EC-1419
< SERVICE INFOMATION >
[MR TYPE 2] C
D E
F
G H
I
J
K L
M A EC
NP
O
DTC P1226 TP SENSOR
Component Description INFOID:0000000004501208
Electric throttle control actuator consists of throttle control motor,
throttle position sensor, etc. The throttle position sensor responds to
the throttle valve movement.
The throttle position sensor has two sensors. These sensors are a
kind of potentiometers which transform the throttle valve position into
output voltage, and emit the voltage signal to the ECM. In addition,
these sensors detect the opening and closing speed of the throttle
valve and feed the voltage signals to the ECM. The ECM judges the
current opening angle of the throttle valve from these signals and the
ECM controls the throttle control motor to make the throttle valve
opening angle properly in response to driving condition.
On Board Diagnosis Logic INFOID:0000000004500293
The MIL will not light up for this diagnosis.
DTC Confirmation Procedure INFOID:0000000004500294
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:
Before performing the following procedure, confirm that battery voltage is more than 10V at idle.
1. Turn ignition switch ON.
2. Turn ignition switch OFF and wait at least 10 seconds.
3. Turn ignition switch ON.
4. Repeat steps 3 and 4 for 32 times.
5. Check 1st trip DTC.
6. If 1st trip DTC is detected, go to EC-1419, " Diagnosis Procedure " .
Diagnosis Procedure INFOID:00000000045012091.
CHECK ELECTRIC THROTTLE CONTROL ACTUATOR VISUALLY
1. Turn ignition switch OFF.
2. Remove the intake air duct.
3. Check if foreign matter is c aught between the throttle valve (1)
and the housing.
- : Vehicle front
OK or NG OK >> GO TO 2.
NG >> Remove the foreign matter and clean the electric throttle control actuator inside. 2.
REPLACE ELECTRIC THROTTLE CONTROL ACTUATOR
1. Replace the electric throttle control actuator.
2. Perform EC-1084, " Throttle Valve Closed Position Learning " . PBIB0145E
DTC No. Trouble diagnosis name DTC detecting condition Possible cause
P1226
1226 Closed throttle position
learning performance Closed throttle position learning is not per-
formed successfully, repeatedly. • Electric throttle control actuator
(TP sensor 1 and 2) BBIA0711E

EC
NP
O
DTC P1421 COLD START CONTROL
Description INFOID:0000000004500297
ECM controls ignition timing and engine idle speed when engine is started with prewarming up condition.
This control promotes the activation of three way ca talyst by heating the catalyst and reduces emissions.
On Board Diagnosis Logic INFOID:0000000004500298
DTC Confirmation Procedure INFOID:0000000004500299
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.
• If DTC P1421 is displayed with other DTC, firs t perform the trouble diagnosis for other DTC.
TESTING CONDITION:
Before performing the following procedure, confirm that battery voltage is more than 11V at idle.
WITH CONSULT-III
1. Turn ignition switch OFF and wait at least 10 seconds.
2. Turn ignition switch ON.
3. Select “DATA MONITOR” mode with CONSULT-III.
4. Check that the “COOLAN TE MP/S” indication is between 4°C (39 °F) and 36 °C (97 °F).
If “COOLAN TEMP/S” indication is within the specified value, go to the following step.
If “COOLAN TEMP/S” indication is out of the s pecified value, cool engine down or warm engine up and go
to step 1.
5. Start engine and let it idle for 5 minutes.
6. Check 1st trip DTC.
7. If 1st trip DTC is detected, go to EC-1421, " Diagnosis Procedure " .
Diagnosis Procedure INFOID:0000000004500300Idle Air Volume Learning " .
Is Idle Air Volume Learning carried out successfully?
Yes or No Yes >> GO TO 2.
No >> Follow the instruction of Idle Air Volume Learning. OK >> GO TO 3.
NG >> Repair or replace malfunctioning part DTC Confirmation Procedure " for DTC P0171.
OK or NG OK >> GO TO 4.DTC No. Trouble diagnosis name DTC detecting condition Possible cause
P1421
1421 Cold start emission reduction
strategy monitoring ECM does not control ignition timing and engine
idle speed properly when engine is started with
prewarming up condition. • Lack of intake air volume
• Fuel injection system
• ECM

DTC P1564 ASCD STEERING SWITCH
EC-1423
< SERVICE INFOMATION >
[MR TYPE 2] C
D E
F
G H
I
J
K L
M A EC
NP
O
DTC P1564 ASCD STEERING SWITCH
Component Description INFOID:0000000004500301
ASCD steering switch has variant values of electrical resistance for each button. ECM reads voltage variation
of switch, and determines which button is operated.
Refer to EC-1033 for the ASCD function.
CONSULT-III Reference Val ue in Data Monitor Mode INFOID:0000000004500302
Specification data are reference values.
On Board Diagnosis Logic INFOID:0000000004500303
This self-diagnosis has the on e trip detection logic.
The MIL will not light up for this diagnosis.
NOTE:
If DTC P1564 is displayed with DTC P0605, first perform the trouble diagnosis for DTC P0605.
Refer to EC-1393 .
1. ASCD steering switch 2. MAIN switch 3. CANCEL switch
4. RESUME/ACCELERATE switch 5. SET/COAST switch BBIA0707E
MONITOR ITEM CONDITION SPECIFICATION
MAIN SW • Ignition switch: ON MAIN switch: Pressed ON
MAIN switch: Released OFF
CANCEL SW • Ignition switch: ON CANCEL switch: Pressed ON
CANCEL switch: Released OFF
RESUME/ACC SW • Ignition switch: ON RESUME/ACCELERATE switch:
Pressed ON
RESUME/ACCELERATE switch: Re-
leased OFF
SET SW • Ignition switch: ON SET/COAST switch: Pressed ON
SET/COAST switch: Released OFF DTC No.
Trouble diagnosis
name DTC detecting condition Possible cause
P1564
1564 ASCD steering switch • An excessively high voltage signal from the
ASCD steering switch is sent to ECM.
• ECM detects that input signal from the
ASCD steering switch is out of the specified
range.
• ECM detects that the ASCD steering switch
is stuck ON. • Harness or connectors
(ASCD switch circuit is open or shorted.)
• ASCD steering switch
• ECM

EC-1426< SERVICE INFOMATION >
[MR TYPE 2]
DTC P1564 ASCD STEERING SWITCH
Diagnosis Procedure INFOID:00000000045003061.
CHECK GROUND CONNECTIONS
1. Turn ignition switch OFF.
2. Loosen and retighten ground screw on the body. Refer to EC-1144, " Ground Inspection " .
OK or NG OK >> GO TO 2.
NG >> Repair or replace ground connections. 2.
CHECK ASCD STEERING SWITCH CIRCUIT
With CONSULT-III
1. Turn ignition switch ON.
2. Select “MAIN SW”, “RESUME/ACC SW”, “SET SW and “CANCEL SW” in “DATA MONITOR” mode with
CONSULT-III.
3. Check each item indication under the following conditions. TERMI-
NAL NO. WIRE
COLOR ITEM CONDITION DATA (DC Voltage)
94 R ASCD steering switch [Ignition switch: ON]
• ASCD steering switch: OFF Approximately 4V
[Ignition switch: ON]
• MAIN switch: Pressed Approximately 0V
[Ignition switch: ON]
• CANCEL switch: Pressed Approximately 1V
[Ignition switch: ON]
• RESUME/ACCELERATE switch: Pressed Approximately 3V
[Ignition switch: ON]
• SET/COAST switch: Pressed Approximately 2V
95 B Sensor ground [Engine is running]
• Warm-up condition
• Idle speed Approximately 0V:
Vehicle front
1. Body ground E24 2. Engine ground F9 3. Engine ground F16
4. Body ground E15 BBIA0698E
Switch Monitor item Condition Indication
MAIN switch MAIN SW Pressed ON
Released OFF
CANCEL switch CANCEL SW Pressed ON
Released OFF

DTC P1564 ASCD STEERING SWITCH
EC-1427
< SERVICE INFOMATION >
[MR TYPE 2] C
D E
F
G H
I
J
K L
M A EC
NP
O
Without CONSULT-III
1. Turn ignition switch ON.
2. Check voltage between ECM terminal 94 and ground with press- ing each button.
OK or NG OK >> GO TO 8.
NG >> GO TO 3. 3.
CHECK ASCD STEERING SWITCH GRO UND CIRCUIT FOR OPEN AND SHORT
1. Turn ignition switch OFF.
2. Disconnect combination switch harness connector M31.
3. Disconnect ECM harness connector.
4. Check harness continuity between combinati on switch terminal 15 and ECM terminal 95.
Refer to Wiring Diagram.
5. Also check harness for short to ground or short to power.
OK or NG OK >> GO TO 5.
NG >> GO TO 4. 4.
DETECT MALFUNCTIONING PART
Check the following.
• Harness connectors M69, E7
• Combination switch (spiral cable)
• Harness for open and short between ECM and combination switch
>> Repair open circuit or short to ground or short to power in harness or connectors. 5.
CHECK ASCD STEERING SWITCH INPUT S IGNAL CIRCUIT FOR OPEN AND SHORT
1. Check harness continuity between ECM terminal 94 and combination switch terminal 14. Refer to Wiring Diagram.
2. Also check harness for short to ground and short to power.
OK or NG RESUME/AC-
CELERATE
switch RESUME/ACC SW
Pressed ON
Released OFF
SET/COAST
switch SET SW Pressed ON
Released OFF
Switch Monitor item Condition Indication Switch Condition Voltage [V]
MAIN switch Pressed Approx. 0
Released Approx. 4.0
CANCEL switch Pressed Approx. 1.0
Released Approx. 4.0
RESUME/ACCELER-
ATE switch Pressed Approx. 3.0
Released Approx. 4.0
SET/COAST switch Pressed Approx. 2.0
Released Approx. 4.0 PBIB3343E
Continuity should exist.
Continuity should exist.