2009 NISSAN LATIO wiring

EC-1148< SERVICE INFOMATION >
[MR TYPE 2]
DTC U0140 CAN COMMUNICATION LINE
Wiring Diagram INFOID:0000000004477026
Diagnosis Procedure INFOID:0000000004477027
Go to LAN-26, " CAN System Specification Chart " . BBWA2626E

EC
NP
O
DTC U1001 CAN COMMUNICATION LINE
Description INFOID:0000000004477028
CAN (Controller Area Network) is a serial communication li ne for real time application. It is an on-vehicle mul-
tiplex communication line with high data communication speed and excellent error detection ability. Many elec-
tronic control units are equipped onto a vehicle, and each control unit shares information and links with other
control units during operation (not independent). In CAN communication, control units are connected with 2
communication lines (CAN H line, CAN L line) allowing a high rate of information transmission with less wiring.
Each control unit transmits/receives data but selectively reads required data only.
On Board Diagnosis Logic INFOID:0000000004477029
The MIL will not light up for this self-diagnosis.
DTC Confirmation Procedure INFOID:0000000004477030
1. Turn ignition switch ON and wait at least 3 seconds.
2. Check 1st trip DTC.
3. If 1st trip DTC is detected, go to EC-1150, " Diagnosis Procedure " .
DTC No.
Trouble diagnosis
name DTC detecting condition Possible cause
U1001
1001 CAN communication
line When ECM is not transmitting or receiving CAN
communication signal other than OBD (emission-
related diagnosis) for 2 seconds or more. • Harness or connectors
(CAN communication line is open or
shorted.)

EC-1150< SERVICE INFOMATION >
[MR TYPE 2]
DTC U1001 CAN COMMUNICATION LINE
Wiring Diagram INFOID:0000000004477031
Diagnosis Procedure INFOID:0000000004477032
Go to LAN-26, " CAN System Specification Chart " . BBWA2626E

EC-1154< SERVICE INFOMATION >
[MR TYPE 2]
DTC P0011 IVT CONTROL
Refer to EM-170, " Removal and Installation " .
OK or NG OK >> GO TO 8.
NG >> Clean lubrication line. 8.
CHECK INTERMITTENT INCIDENT
Refer to EC-1138 .
For Wiring Diagram, refer to EC-1294, " Wiring Diagram " for CKP sensor (POS) and
EC-1300, " Wiring Dia-
gram " for CMP sensor (PHASE).
>> INSPECTION END
Component Inspection INFOID:0000000004499972
INTAKE VALVE TIMING CONTROL SOLENOID VALVE
1. Disconnect intake valve timing control solenoid valve harness connector.
2. Check resistance between intake valve timing control solenoid valve as follows.
If NG, replace intake valve timing control solenoid valve.
If OK, go to next step.
3. Remove intake valve timing control solenoid valve.
4. Provide 12V DC between intake valve timing control solenoid valve terminals and then interrupt it. Make sure that the plunger
moves as shown in the figure.
CAUTION:
Do not apply 12V DC continuo usly for 5 seconds or more.
Doing so may result in damage to the coil in intake valve
timing control solenoid valve.
If NG, replace intake valve timing control solenoid valve.
NOTE:
Always replace O-ring when intake valve timing control
solenoid valve is removed.
Removal and Installation INFOID:0000000004499973
INTAKE VALVE TIMING CONTROL SOLENOID VALVE
Refer to EM-161, " Removal and Installation " .
Terminal Resistance
1 and 2 6.7 - 7.7 Ω [at 20 °C (68 °F)]
1 or 2 and ground ∞Ω
(Continuity should not exist.) PBIB0574E
PBIB2388E

EC-1158< SERVICE INFOMATION >
[MR TYPE 2]
DTC P0031, P0032
A/F SENSOR 1 HEATER
3. Check voltage between A/F sensor 1 terminal 4 and ground with CONSULT-III or tester.
OK or NG OK >> GO TO 4.
NG >> GO TO 3. 3.
DETECT MALFUNCTIONING PART
Check the following.
• Harness connectors E8, F8
• Harness for open or short between A/F sensor 1 and fuse
>> Repair or replace harness or connectors. 4.
CHECK A/F SENSOR 1 HEATER OUTPUT SIGNAL CIRCUIT
1. Turn ignition switch OFF.
2. Disconnect ECM harness connector.
3. Check harness continuity between ECM terminal 3 and A/F sensor 1 terminal 3. Refer to Wiring Diagram.
4. 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 A/F SENSOR 1 HEATER
Refer to EC-1158, " Component Inspection " .
OK or NG OK >> GO TO 6.
NG >> Replace air fuel ratio (A/F) sensor 1. 6.
CHECK INTERMITTENT INCIDENT
Perform EC-1138 .
>> INSPECTION END
Component Inspection INFOID:0000000004499980
AIR FUEL RATIO (A/F) SENSOR 1 HEATER Voltage: Battery voltage PBIB3308E
Continuity should exist.

DTC P0037, P0038
HO2S2 HEATER
EC-1161
< SERVICE INFOMATION >
[MR TYPE 2] C
D E
F
G H
I
J
K L
M A EC
NP
O
2. Turn ignition switch OFF and wait at least 10 seconds.
3. Start engine and keep the engine speed between 3,500 and 4,000 rpm for at least 1 minute under no load.
4. Let engine idle for 1 minute.
5. Check 1st trip DTC.
6. If 1st trip DTC is detected, go to EC-1162, " Diagnosis Procedure " .
Wiring Diagram INFOID:0000000004499986 BBWA2628E

DTC P0037, P0038
HO2S2 HEATER
EC-1163
< SERVICE INFOMATION >
[MR TYPE 2] C
D E
F
G H
I
J
K L
M A EC
NP
O
NG >> Repair or replace ground connections. 2.
CHECK HO2S2 POWER SUPPLY CIRCUIT
1. Disconnect heated oxygen sensor 2 harness connector (2).
- : Vehicle front
- Heated oxygen sensor 2 (1)
2. Turn ignition switch ON.
3. Check voltage between HO2S2 terminal 2 and ground with CONSULT-III or tester.
OK or NG OK >> GO TO 4.
NG >> GO TO 3. 3.
DETECT MALFUNCTIONING PART
Check the following.
• Harness connectors E8, F8
• Harness for open or short between heated oxygen sensor 2 and fuse
>> Repair open circuit or short to ground or short to power in harness or connectors. 4.
CHECK HO2S2 OUTPUT SIGNAL CIRCUIT FOR OPEN AND SHORT
1. Turn ignition switch OFF.
2. Disconnect ECM harness connector.
3. Check harness continuity between ECM terminal 5 and HO2S2 terminal 3. Refer to Wiring Diagram.
4. 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 HEATED OXYGEN SENSOR 2 HEATER
Refer to EC-1164, " Component Inspection " .
OK or NG OK >> GO TO 6.
NG >> Replace heated oxygen sensor 2. 6.
CHECK INTERMITTENT INCIDENT
Refer to EC-1138 .
>> INSPECTION END BBIA0700E
Voltage: Battery voltage
MBIB0186E
Continuity should exist.

EC-1166< SERVICE INFOMATION >
[MR TYPE 2]
DTC P0075 IVT CONTROL SOLENOID VALVE
Wiring Diagram INFOID:0000000004499994
Specification data are reference values and are measured between each terminal and ground.
Pulse signal is measured by CONSULT-III.
CAUTION: BBWA2627E