2009 NISSAN LATIO Service Repair Manual

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Page 1825 of 4331

NISSAN LATIO 2009 Service Repair Manual EC
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73 P
Intake valve timing control
solenoid valve [Engine is running]
• Warm-up condition
• Idle speed BATTERY VOLTAGE
(11 - 14 V)
[Engine is running]
• Warm-up condition
• When revving

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Page 1827 of 4331

NISSAN LATIO 2009 Service Repair Manual EC
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Wiring Diagram — ENGI
NE CONTROL SYSTEM — INFOID:0000000004780384 B

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NISSAN LATIO 2009 Service Repair Manual B

Page 1829 of 4331

NISSAN LATIO 2009 Service Repair Manual EC
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DTC RELATED ITEM
Detected items
Engine operating condition in
fail-safe mode Remarks
Malfunction indicator
lamp circuit Engine speed will not rise
more than 2,500 rpm due to
the fuel cut W

EC
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DTC RELATED ITEM
Detected items
Engine operating condition in
fail-safe mode Remarks
Malfunction indicator
lamp circuit Engine speed will not rise
more than 2,500 rpm due to
the fuel cut When there is an open circuit on MIL circuit, the ECM cannot warn the driver by
lighting up MIL when there is malfunction on engine control system.
Therefore, when electrical controlled throttle and part of ECM related diagnoses
are continuously detected as NG for 5 trips, ECM warns the driver that engine
control system malfunctions and MIL circuit is open by means of operating fail-
safe function.
The fail-safe function also operates when above diagnoses except MIL circuit
are detected and demands the driver to repair the malfunction. DTC No. Detected items Engine operating condition in fail-safe mode
P0011 Intake valve timing control The signal is not energized to the intake valve timing control solenoid valve and the valve control does not function.
P0102
P0103 Mass air flow sensor circuit Engine speed will not rise more than 2,400 rpm due to the fuel cut.
P0117
P0118 Engine coolant tempera-
ture 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)
More than approx. 4 minutes 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.
P0122
P0123
P0222
P0223
P2135 Throttle position sensor The ECM controls the electric throttle control actuator in regulating the throttle opening in
order for the idle position to be within +10 degrees.
The ECM regulates the opening speed of the throttle valve to be slower than the normal
condition.
So, the acceleration will be poor.
P0643 Sensor power supply ECM stops the electric throttle control actuator control, throttle valve is maintained at a fixed opening (approx. 5 degrees) by the return spring.
P0605 ECM (When ECM calculation function is malfunctioning:) ECM stops the electric throttle control actuator control, throttle valve is maintained at a
fixed opening (approx. 5 degrees) by the return spring.
P1805 Brake switch ECM controls the electric throttle control actuator by regulating the throttle opening to a small range.
Therefore, acceleration will be poor.
Vehicle condition Driving condition
When engine is idling Normal
When accelerating Poor acceleration
P2100
P2103 Throttle control motor relay ECM stops the electric throttle control actuator control, throttle valve is maintained at a
fixed opening (approx. 5 degrees) by the return spring.
P2101 Electric th rottle control
function ECM stops the electric throttle control actuator control, throttle valve is maintained at a
fixed opening (approx. 5 degrees) by the return spring.
P2118 Throttle control motor ECM stops the electric throttle control actuator control, throttle valve is maintained at a fixed opening (approx. 5 degrees) by the return spring.

Page 1830 of 4331

NISSAN LATIO 2009 Service Repair Manual Priority Detected items (DTC)
1 • U0101 U0140 U1001 CAN communication line • P0101 P0102 P0103 Mass air flow sensor
• P0112 P0113 P0127 Intake air temperature sensor
• P0116 P0117 P0118 P0125

Page 1831 of 4331

NISSAN LATIO 2009 Service Repair Manual EC
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DTC Index
INFOID:0000000004780387
× :Applicable —: Not applicable
2 • P0031 P0032 Air fuel ratio (A/F) sensor 1 heater
• P0037 P0038 Heated oxygen sensor 2 heater
• P0075 Intake valve

EC
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DTC Index
INFOID:0000000004780387
× :Applicable —: Not applicable
2 • P0031 P0032 Air fuel ratio (A/F) sensor 1 heater
• P0037 P0038 Heated oxygen sensor 2 heater
• P0075 Intake valve timing control solenoid valve
• P0130 P0131 P0132 P0133 P2A00 Air fuel ratio (A/F) sensor 1
• P0137 P0138 P0139 Heated oxygen sensor 2
• P0441 EVAP control system purge flow monitoring
• P0443 P0444 P0445 EVAP canister purge volume control solenoid valve
• P0447 P0448 EVAP canister vent control valve
• P0451 P0452 P0453 EVAP control system pressure sensor
• P0603 ECM power supply
• P0710 P0720 P0725 P0731 P0732 P0733 P0734 P0740 P0744 P0745 P0750 P0755 P1705 P1760 A/T related sensors,
solenoid valves and switches
• P1217 Engine over temperature (OVERHEAT)
• P1805 Brake switch
• P2100 P2103 Throttle control motor relay
• P2101 Electric throttle control function
• P2118 Throttle control motor
3 • P0011 Intake valve timing control • P0171 P0172 Fuel injection system function
• P0300 - P0304 Misfire
• P0420 Three way catalyst function
• P0442 P0456 EVAP control system (SMALL LEAK, VERY SMALL LEAK)
• P0455 EVAP control system (GROSS LEAK)
• P0506 P0507 Idle speed control system
• P1148 Closed loop control
• P1421 Cold start control
• P1715 Primary speed sensor
• P2119 Electric throttle control actuator
Priority Detected items (DTC) DTC*
1
Items
(CONSULT-III screen terms) SRT code Trip MIL Reference page
CONSULT-III
GST* 2
ECM*3
U0101 0101*4
LOST COMM (TCM) — 1 ×EC-126 U0140
0140*4
LOST COMM (BCM) — 1 ×EC-128 U1001
1001*4
CAN COMM CIRCUIT — 2 — EC-126P0031 0031 A/F SEN1 HTR (B1) — 2
×EC-136 P0032 0032 A/F SEN1 HTR (B1) — 2
×EC-136 P0037 0037 HO2S2 HTR (B1) — 2
×EC-140 P0038 0038 HO2S2 HTR (B1) — 2
×EC-140 P0075 0075 INT/V TIM V/CIR-B1 — 2
×EC-144 P0101 0101 MAF SEN/CIRCUIT-B1 — 2
×EC-148 P0102 0102 MAF SEN/CIRCUIT-B1 — 1
×EC-156 P0103 0103 MAF SEN/CIRCUIT-B1 — 1
×EC-156 P0112 0112 IAT SEN/CIRCUIT-B1 — 2
×EC-162 P0113 0113 IAT SEN/CIRCUIT-B1 — 2
×EC-162 P0116 0116 ECT SEN/CIRC — 2
×EC-165 P0117 0117 ECT SEN/CIRC — 1
×EC-167

Page 1832 of 4331

NISSAN LATIO 2009 Service Repair Manual P0122 0122 TP SEN 2/CIRC-B1 — 1
×EC-171 P0123 0123 TP SEN 2/CIRC-B1 — 1
×EC-171 P0125 0125 ECT SENSOR — 2
×EC-175 P0127 0127 IAT SENSOR-B1 — 2
×EC-178 P0128 0128 THERMSTAT FNCTN — 2
×EC

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