2009 NISSAN LATIO display

EC
NP
O
P0607 ECM
Description INFOID:0000000004780240
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.
DTC Logic INFOID:0000000004780241
DTC DETECTION LOGIC
DTC CONFIRMATION PROCEDURE YES >> Go to
EC-357, " Diagnosis Procedure " .
NO >> INSPECTION END
Diagnosis Procedure INFOID:0000000004780242Diagnosis Description "
3. Perform DTC CONFIRMATION PROCEDURE. Refer to
EC-357, " DTC Logic " .
4. Check DTC.
Is the DTC P0607 displayed again? YES >> GO TO 2.
NO >> INSPECTION END ADDITIONAL SERVICE WHEN REPLACING CONTROL UNIT : Special Repair Require-
ment " .
>> INSPECTION END
DTC No. Trouble diagnosis name DTC detecting condition Possible cause
P0607 CAN communication bus When detecting error during the initial diagnosis
of CAN controller of ECM. • ECM

EC
NP
O
P1148 CLOSED LOOP CONTROL
DTC Logic INFOID:0000000004780249
DTC DETECTION LOGIC NOTE:
DTC P1148 is displayed with another DTC for A/F sensor 1.
Perform the trouble diagnosi s for the corresponding DTC.
DTC No. Trouble diagnosis name DTC detecting condition Possible cause
P1148 Closed loop control function The closed loop control function for bank 1 does
not operate even when vehicle is driving in the
specified condition. • Harness or connectors
(The A/F sensor 1 circuit is open or
shorted.)
• A/F sensor 1
• A/F sensor 1 heater
The closed loop control function for bank 2 does
not operate even when vehicle is driving in the
specified condition.

EC
NP
O
Is the inspection result normal? YES >> GO TO 3.
NO >> Repair or replace malfunctioning part DTC Logic " .
Is the inspection result normal? YES >> GO TO 4.
NO >> Go to EC-231, " Diagnosis Procedure " for DTC P0171.
Diagnosis Description " .
3. Perform DTC CONFIRMATION PROCEDURE. Refer to EC-376, " DTC Logic " .
Is the 1st trip DTC P1421 displayed again? YES >> GO TO 5.
NO >> INSPECTION END ADDITIONAL SERVICE WHEN REPLACING CONTROL UNIT : Special Repair Require-
ment " .
>> INSPECTION END

DTC Logic " .
• If DTC P1715 is displayed with DTC P0340, first pe rform the trouble diagnosis for DTC P0340. Refer
to EC-268, " DTC Logic " .
• If DTC P1715 is displayed with DTC P0605, first pe rform the trouble diagnosis for DTC P0605. Refer
to EC-355, " DTC Logic " .
• If DTC P1715 is displayed with DTC P0607, first pe rform the trouble diagnosis for DTC P0607. Refer
to EC-357, " DTC Logic " .
DTC CONFIRMATION PROCEDURE YES >> Go to
EC-378, " Diagnosis Procedure " .
NO >> INSPECTION END
Diagnosis Procedure INFOID:0000000004780296OBD-II Diagnostic Trouble Code (DTC) " .
Is the inspection result normal? YES >> GO TO 2.
NO >> Perform trouble shooting relevant to DTC indicated.

DTC Logic " .
• If DTC P2101 is displayed with DTC P2119, first pe rform the trouble diagnosis for DTC P2119. Refer
to EC-397, " DTC Logic " .
DTC CONFIRMATION PROCEDURE YES >> Go to
EC-389, " Diagnosis Procedure " .
NO >> INSPECTION END DTC No. Trouble diagnosis name DTC detecting condition Possible cause
P2101 Electric throttle control
performance Electric throttle control function does not
operate properly. • Harness or connectors
(Throttle control motor circuit is open or shorted)
• Electric throttle control actuator

EC
NP
O
P2122, P2123 APP SENSOR
Description INFOID:0000000004780318
The accelerator pedal position sensor is installed on the upper end
of the accelerator pedal assembly. The sensor detects the accelera-
tor position and sends a signal to the ECM.
Accelerator pedal position sensor has two sensors. These sensors
are a kind of potentiometer which transform the accelerator pedal
position into output voltage, and emit the voltage signal to the ECM.
The ECM judges the current opening angle of the accelerator pedal
from these signals and controls the throttle control motor based on
these signals.
Idle position of the accelerato r pedal is determined by the ECM
receiving the signal from the acce lerator pedal position sensor. The
ECM uses this signal for the engine operation such as fuel cut.
DTC Logic INFOID:0000000004780319
DTC DETECTION LOGIC NOTE:
If DTC P2122 or P2123 is displayed with DTC P0643, first perform the trouble diagnosis for DTC P0643.
Refer to EC-358, " DTC Logic " .
DTC CONFIRMATION PROCEDURE YES >> Go to
EC-400, " Diagnosis Procedure " .
NO >> INSPECTION END

EC-408< COMPONENT DIAGNOSIS >
[HR16DE]
P2135 TP SENSOR
P2135 TP SENSOR
Description INFOID:0000000004780448
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 potentiometer which transform the throttle valve position into
output voltage, and emit the voltage signals to the ECM. The ECM
judges the current opening angle of the throttle valve from these sig-
nals and controls the throttle valve opening angle in response to
driving conditions via the throttle control motor.
DTC Logic INFOID:0000000004780329
DTC DETECTION LOGIC
NOTE:
If DTC P2135 is displayed with DTC P0643, first pe rform the trouble diagnosis for DTC P0643. Refer to
EC-358, " DTC Logic " .
DTC CONFIRMATION PROCEDURE 1.
PRECONDITIONING
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 8 V at idle.
>> GO TO 2. 2.
PERFORM DTC CONFIRMATION PROCEDURE
1. Start engine and let it idle for 1 second.
2. Check DTC.
Is DTC detected? YES >> Go to
EC-409, " Diagnosis Procedure " .
NO >> INSPECTION END PBIB0145E
DTC No. Trouble diagnosis name DTC detecting condition Possible cause
P2135 Throttle position sensor
circuit range/perfor-
mance Rationally incorrect voltage is sent to ECM
compared with the signals from TP sensor 1
and TP sensor 2. • Harness or connector
(TP sensor 1 or 2 circuit is open or shorted.)
• Electric throttle control actuator (TP sensor 1 or 2)

EC-412< COMPONENT DIAGNOSIS >
[HR16DE]
P2138 APP SENSOR
P2138 APP SENSOR
Description INFOID:0000000004780333
The accelerator pedal position sensor is installed on the upper end
of the accelerator pedal assembly. The sensor detects the accelera-
tor position and sends a signal to the ECM.
Accelerator pedal position sensor has two sensors. These sensors
are a kind of potentiometer which transform the accelerator pedal
position into output voltage, and emit the voltage signal to the ECM.
The ECM judges the current opening angle of the accelerator pedal
from these signals and controls the throttle control motor based on
these signals.
Idle position of the accelerator pedal is determined by the ECM
receiving the signal from the accelerator pedal position sensor. The
ECM uses this signal for the engine operation such as fuel cut.
DTC Logic INFOID:0000000004780334
DTC DETECTION LOGIC
NOTE:
If DTC P2138 is displayed with DTC P0643, first pe rform the trouble diagnosis for DTC P0643. Refer to
EC-358, " DTC Logic " .
DTC CONFIRMATION PROCEDURE 1.
PRECONDITIONING
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 8 V at idle.
>> GO TO 2. 2.
PERFORM DTC CONFIRMATION PROCEDURE
1. Start engine and let it idle for 1 second.
2. Check DTC.
Is DTC detected? YES >> Go to
EC-413, " Diagnosis Procedure " .
NO >> INSPECTION END PBIB1741E
DTC No. Trouble diagnosis name DTC detecting condition Possible cause
P2138 Accelerator pedal position
sensor circuit range/per-
formance Rationally incorrect voltage is sent to ECM
compared with the signals from APP sensor
1 and APP sensor 2. • Harness or connector
(APP sensor 1 or 2 circuit is open or
shorted.)
[Crankshaft position sensor (POS) circuit
is shorted.)
(Refrigerant pressure sensor circuit is
shorted.)
(EVAP control system sensor circuit is
shorted.)
• Accelerator pedal position sensor
(APP sensor 1 or 2)
• Crankshaft position sensor (POS)
• Refrigerant pressure sensor
• EVAP control system pressure sensor