2008 NISSAN LATIO wiring diagram

DTC P0182, P0183 FTT SENSOR
EC-275
< SERVICE INFORMATION >
C
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EC
N
P O
WITH GST
Follow the procedure “WITH CONSULT-II” above.
Wiring DiagramINFOID:0000000001702778
Diagnosis ProcedureINFOID:0000000001702779
1.CHECK GROUND CONNECTIONS
BBWA2636E

DTC P0182, P0183 FTT SENSOR
EC-277
< SERVICE INFORMATION >
C
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EC
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P O
2. Check harness continuity between “fuel level sensor unit and fuel pump” terminal 5 and combination
meter terminal 24. Refer to Wiring Diagram.
3. Also check harness for short to ground and short to power.
OK or NG
OK >> GO TO 6.
NG >> GO TO 5.
5.DETECT MALFUNCTIONING PART
Check the following.
• Harness connectors B102, M13
• Harness for open or short between “fuel level sensor unit and fuel pump” and ground
>> Repair open circuit or short to ground or short to power in harness or connector.
6.CHECK FUEL TANK TEMPERATURE SENSOR
Refer to, EC-277, "
Component Inspection".
OK or NG
OK >> GO TO 7.
NG >> Replace “fuel level sensor unit and fuel pump”.
7.CHECK INTERMITTENT INCIDENT
Perform EC-136
.
>>INSPECTION END
Component InspectionINFOID:0000000001702780
FUEL TANK TEMPERATURE SENSOR
1. Check resistance between “fuel level sensor unit and fuel pump”
terminal 4 and 5 by heating with hot water as shown in the fig-
ure.
2. If NG, replace “fuel level sensor unit and fuel pump”.
Removal and InstallationINFOID:0000000001702781
FUEL TANK TEMPERATURE SENSOR
Refer to FL-5. Continuity should exist.
Temperature °C (°F) Resistance kΩ
20 (68) 2.3 - 2.7
50 (122) 0.79 - 0.90
PBIB0931E

EC-280
< SERVICE INFORMATION >
DTC P0222, P0223 TP SENSOR
Wiring Diagram
INFOID:0000000001702786
Specification data are reference values and are measured between each terminal and ground.
CAUTION:
Do not use ECM ground terminals when measuring input/output voltage. Doing so may result in dam-
age to the ECM's transistor. Use a ground other than ECM terminals, such as the ground.
BBWA2655E

EC-282
< SERVICE INFORMATION >
DTC P0222, P0223 TP SENSOR
1. Disconnect electric throttle control actuator (1) harness connec-
tor.
- : Vehicle front
2. Turn ignition switch ON.
3. Check voltage between electric throttle control actuator terminal
2 and ground with CONSULT-II or tester.
OK or NG
OK >> GO TO 3.
NG >> Repair open circuit or short to ground or short to power
in harness connectors.
3.CHECK THROTTLE POSITION SENSOR 1 GROUND CIRCUIT FOR OPEN AND SHORT
1. Turn ignition switch OFF.
2. Disconnect ECM harness connector.
3. Check harness continuity between ECM terminal 36 and electric throttle control actuator terminal 4.
Refer to Wiring Diagram.
4. Also check harness for short to ground or short to power.
OK or NG
OK >> GO TO 4.
NG >> Repair open circuit or short to ground or short to power in harness or connectors.
4.CHECK THROTTLE POSITION SENSOR 1 INPUT SIGNAL CIRCUIT FOR OPEN AND SHORT
1. Check harness continuity between ECM terminal 33 and electric throttle control actuator terminal 1.
Refer to Wiring Diagram.
2. Also check harness for short to ground and short to power.
OK or NG
OK >> GO TO 5.
NG >> Repair open circuit or short to ground or short to power in harness or connectors.
5.CHECK THROTTLE POSITION SENSOR
Refer to EC-283, "
Component Inspection".
OK or NG
OK >> GO TO 7.
NG >> GO TO 6.
6.REPLACE ELECTRIC THROTTLE CONTROL ACTUATOR
1. Replace the electric throttle control actuator.
2. Perform EC-76, "
Throttle Valve Closed Position Learning".
3. Perform EC-76, "
Idle Air Volume Learning".
PBIB3325E
Voltage: Approximately 5V
PBIB3311E
Continuity should exist.
Continuity should exist.

EC-288
< SERVICE INFORMATION >
DTC P0300 - P0304 MULTIPLE CYLINDER MISFIRE, NO. 1 - 4 CYLINDER MIS-
FIRE
Check compression pressure. Refer to EM-62, "On-Vehicle Service".
OK or NG
OK >> GO TO 10.
NG >> Check pistons, piston rings, valves, valve seats and cylinder head gaskets.
10.CHECK FUEL PRESSURE
1. Install all removed parts.
2. Release fuel pressure to zero. Refer to EC-78, "
Fuel Pressure Check".
3. Install fuel pressure gauge and check fuel pressure. Refer to EC-78, "
Fuel Pressure Check".
OK or NG
OK >> GO TO 12.
NG >> GO TO 11.
11 .DETECT MALFUNCTIONING PART
Check the following.
• Fuel pump and circuit (Refer to EC-526
.)
• Fuel pressure regulator (Refer to EC-78, "
Fuel Pressure Check".)
• Fuel lines (Refer to EM-33
.)
• Fuel filter for clogging
>> Repair or replace.
12.CHECK IGNITION TIMING
Check the following items. Refer to EC-69, "
Basic Inspection".
OK or NG
OK >> GO TO 13.
NG >> Follow the EC-69, "
Basic Inspection".
13.CHECK AIR FUEL RATIO (A/F) SENSOR 1 CIRCUIT FOR OPEN AND SHORT
1. Turn ignition switch OFF.
2. Disconnect air fuel ratio (A/F) sensor 1 harness connector (1).
- Air fuel ratio (A/F) sensor 1 (2)
3. Disconnect ECM harness connector.
4. Check harness continuity between the following terminals.
Refer to Wiring Diagram.
5. Check harness continuity between ECM terminals 49, 53 or A/F sensor 1 terminals 1, 2 and ground.
Refer to Wiring Diagram.At idling: Approximately 350 kPa (3.57 kg/cm
2, 51 psi)
Items Specifications
Target idle speedA/T: 700 ± 50 rpm (in P or N position)
CVT: 700 ± 50 rpm (in P or N position)
M/T: 700 ± 50 rpm (in Neutral position)
Ignition timingA/T: 13 ± 5° BTDC (in P or N position)
CVT: 13 ± 5° BTDC (in Neutral position)
M/T: 13 ± 5° BTDC (in Neutral position)
A/F sensor 1 terminal ECM terminal
149
253
Continuity should exist.
BBIA0699E

EC-292
< SERVICE INFORMATION >
DTC P0327, P0328 KS
Wiring Diagram
INFOID:0000000001702796
Specification data are reference values and are measured between each terminal and ground.
CAUTION:
Do not use ECM ground terminals when measuring input/output voltage. Doing so may result in dam-
age to the ECM's transistor. Use a ground other than ECM terminals, such as the ground.
BBWA2637E

DTC P0327, P0328 KS
EC-293
< SERVICE INFORMATION >
C
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EC
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Diagnosis ProcedureINFOID:0000000001702797
1.CHECK KNOCK SENSOR INPUT SIGNAL CIRCUIT-I
1. Turn ignition switch OFF.
2. Disconnect ECM harness connector.
3. Check resistance between ECM terminal 37 and ground. Refer to Wiring Diagram.
NOTE:
It is necessary to use an ohmmeter which can measure more than 10 MΩ.
4. Also check harness for short to ground and short to power.
OK or NG
OK >> GO TO 4.
NG >> GO TO 2.
2.CHECK KNOCK SENSOR INPUT SIGNAL CIRCUIT-II
1. Disconnect knock sensor (1) harness connector.
- : Vehicle front
2. Check harness continuity between ECM terminal 37 and knock
sensor terminal 1. Refer to Wiring Diagram.
3. Also check harness for short to ground and short to power.
OK or NG
OK >> GO TO 3.
NG >> Repair open circuit or short to ground or short to power
in harness or connectors.
3.CHECK KNOCK SENSOR
Refer to EC-294, "
Component Inspection".
OK or NG
OK >> GO TO 6.
NG >> Replace knock sensor.
4.CHECK GROUND CONNECTIONS
Loosen and retighten ground screws on the body.
Refer to EC-142, "
Ground Inspection".
TERMI-
NAL
NO.WIRE
COLORITEM CONDITION DATA (DC Voltage)
37 W Knock sensor[Engine is running]
• Idle speedApproximately 2.5V
40 —Sensor ground
(Knock sensor)[Engine is running]
•Warm-up condition
• Idle speedApproximately 0V
Resistance: Approximately 532 - 588kΩ [at 20°C (68°F)]
Continuity should exist.
PBIB3264E
BBIA0698E

EC-294
< SERVICE INFORMATION >
DTC P0327, P0328 KS
OK or NG
OK >> GO TO 5.
NG >> Repair or replace ground connections.
5.CHECK KNOCK SENSOR SHIELD CIRCUIT FOR OPEN AND SHORT
1. Reconnect knock sensor harness connector.
2. Check harness continuity between ECM terminal 40 and knock sensor terminal 2.
Refer to Wiring Diagram.
3. Also check harness for short to ground and short to power.
OK or NG
OK >> GO TO 6.
NG >> Repair open circuit or short to ground or short to power in harness or connectors.
6.CHECK INTERMITTENT INCIDENT
Refer to EC-136
.
>>INSPECTION END
Component InspectionINFOID:0000000001702798
KNOCK SENSOR
1. Check resistance between knock sensor terminal 1 and ground.
NOTE:
It is necessary to use an ohmmeter which can measure
more than 10 MΩ.
CAUTION:
Do not use any knock sensors that have been dropped or
physically damaged. Use only new ones.
2. If NG, replace knock sensor.
Removal and InstallationINFOID:0000000001702799
KNOCK SENSOR
Refer to EM-76.
:Vehicle front
1. Body ground E24 2. Engine ground F9 3. Engine ground F16
4. Body ground E15
Continuity should exist
Resistance: Approximately 532 - 588kΩ [at 20°C (68°F)]
SEF227W