2009 NISSAN LATIO wiring

DTC P0181 FTT SENSOR
EC-1273
< SERVICE INFOMATION >
[MR TYPE 2] C
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2. Disconnect combination meter harness connector.
3. Check harness continuity between “fuel level sens or unit and fuel pump” terminal 5 and combination
meter terminal 24. Refer to Wiring Diagram.
4. 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 connectors. 6.
CHECK FUEL TANK TEMPERATURE SENSOR
Refer to, EC-1273, " Component Inspection " .
OK or NG OK >> GO TO 7.
NG >> Replace “fuel level sensor unit and fuel pump”. 7.
CHECK INTERMITTENT INCIDENT
Perform EC-1138 .
>> INSPECTION END
Component Inspection INFOID:0000000004500123
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 Installation INFOID:0000000004500124
FUEL TANK TEMPERATURE SENSOR Refer to FL-5, " Removal and Installation " .
Continuity should exist.
Temperature °C ( °F) Resistance k Ω
20 (68) 2.3 - 2.7
50 (122) 0.79 - 0.90 PBIB0931E

DTC P0182, P0183 FTT SENSOR
EC-1275
< SERVICE INFOMATION >
[MR TYPE 2] C
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Wiring Diagram
INFOID:0000000004501180
Diagnosis Procedure INFOID:00000000045011811.
CHECK GROUND CONNECTIONS
1. Turn ignition switch OFF.
2. Loosen and retighten ground screw on the body. Refer to EC-1144, " Ground Inspection " . BBWA2636E

DTC P0182, P0183 FTT SENSOR
EC-1277
< SERVICE INFOMATION >
[MR TYPE 2] C
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3. Check harness continuity between “fuel level sens
or unit and fuel pump” terminal 5 and combination
meter terminal 24. Refer to Wiring Diagram.
4. 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 connectors. 6.
CHECK FUEL TANK TEMPERATURE SENSOR
Refer to, EC-1277, " Component Inspection " .
OK or NG OK >> GO TO 7.
NG >> Replace “fuel level sensor unit and fuel pump”. 7.
CHECK INTERMITTENT INCIDENT
Perform EC-1138 .
>> INSPECTION END
Component Inspection INFOID:0000000004501182
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 Installation INFOID:0000000004501183
FUEL TANK TEMPERATURE SENSOR Refer to FL-5, " Removal and Installation " .
Continuity should exist.
Temperature °C ( °F) Resistance k Ω
20 (68) 2.3 - 2.7
50 (122) 0.79 - 0.90 PBIB0931E

DTC P0222, P
0223 TP SENSOR
EC-1279
< SERVICE INFOMATION >
[MR TYPE 2] C
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2. Check DTC.
3. If DTC is detected, go to EC-1280, " Diagnosis Procedure " .
Wiring Diagram INFOID:0000000004500136
Specification data are reference values and are measured between each terminal and ground.
CAUTION: BBWA2655E

DTC P0222, P
0223 TP SENSOR
EC-1281
< SERVICE INFOMATION >
[MR TYPE 2] C
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1. Disconnect electric throttle c
ontrol 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-III 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 POSITI ON 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 POSI TION 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-1282, " 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-1084, " Throttle Valve Closed Position Learning " .
3. Perform EC-1084, " Idle Air Volume Learning " . PBIB3325E
Voltage: Approximately 5V
PBIB3311E
Continuity should exist.
Continuity should exist.

DTC P0300 - P0304 MULTIPLE CYLINDER
MISFIRE, NO. 1 - 4 CYLINDER MIS-
FIRE
EC-1287
< SERVICE INFOMATION >
[MR TYPE 2] C
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CHECK IGNITION TIMING
Check the following items. Refer to EC-1078, " Basic Inspection " .
OK or NG OK >> GO TO 13.
NG >> Follow the EC-1078, " Basic Inspection " .
13.
CHECK AIR FUEL RATIO (A/F) SENS OR 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.
6. Also check harness for short to power.
OK or NG OK >> GO TO 14.
NG >> Repair open circuit or short to ground or short to power in harness or connectors. 14.
CHECK AIR FUEL RATIO (A/F) SENSOR 1 HEATER
Refer to EC-1158, " Component Inspection " .
OK or NG OK >> GO TO 16.
NG >> GO TO 15. 15.
REPLACE AIR FUEL RATIO (A/F) SENSOR 1
Replace air fuel ratio (A/F) sensor 1.
CAUTION:
• Discard any A/F sensor which has been dropped from a height of more than 0.5 m (19.7 in) onto a
hard surface such as a concrete floor; use a new one.
• Before installing new A/F senso r, clean exhaust system threads using Oxygen Sensor Thread
Cleaner tool J-43897-18 or J-43897-12 and approved anti-seize lubricant.
>> INSPECTION END 16.
CHECK MASS AIR FLOW SENSORItems Specifications
Target idle speed A/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 timing A/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
1 49
2 53
Continuity should exist.
Continuity should not exist. BBIA0699E

EC-1290< SERVICE INFOMATION >
[MR TYPE 2]
DTC P0327, P0328 KS
Wiring Diagram INFOID:0000000004500146
Specification data are reference values and are measured between each terminal and ground.
CAUTION:
Do not use ECM ground terminals when measuring in put/output voltage. Doing so may result in dam-
age to the ECM's transistor. Use a ground ot her than ECM terminals, such as the ground. BBWA2637E

DTC P0327, P0328 KS
EC-1291
< SERVICE INFOMATION >
[MR TYPE 2] C
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Diagnosis Procedure
INFOID:00000000045001471.
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 M Ω.
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-1292, " 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-1144, " Ground Inspection " .
TERMI-
NAL NO. WIRE
COLOR ITEM CONDITION DATA (DC Voltage)
37 W Knock sensor [Engine is running]
• Idle speed Approximately 2.5V
40 — Sensor ground
(Knock sensor) [Engine is running]
• Warm-up condition
• Idle speed Approximately 0VResistance: Approximately 532 - 588k
Ω [at 20 °C (68 °F)]
Continuity should exist. PBIB3264E
BBIA0698E