NISSAN LATIO 2009 Service Repair Manual

P1226 TP SENSOR
EC-375
< COMPONENT DIAGNOSIS >
[HR16DE] C
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3. Check if foreign matter is c
aught between the throttle valve (1)
and the housing.
- Electric throttle control actuator (2)
Is the inspection result normal? YES >> GO TO 2.
NO >> Remove the foreign matter and clean the electric throttle
control actuator inside. 2.
REPLACE ELECTRIC THROTTLE CONTROL ACTUATOR
1. Replace electric throttle control actuator.
2. Perform EC-375, " Special Repair Requirement " .
>> INSPECTION END
Special Repair Requirement INFOID:00000000047802601.
PERFORM THROTTLE VALVE CL OSED POSITION LEARNING
Refer to EC-31, " THROTTLE VALVE CLOSED POSITION L
EARNING : Special Repair Requirement "
>> GO TO 2.
2.
PERFORM IDLE AIR VOLUME LEARNING
Refer to EC-32, " IDLE AIR VOLUME LEARNING : Special Repair Requirement "
>> END JMBIA0447ZZ

YES >> Go to
EC-376, " Diagnosis Procedure " .
NO >> INSPECTION END
Diagnosis Procedure INFOID:0000000004780263IDLE AIR VOLUME LEARNING : Special Repair Requirement " .
Is Idle Air Volume Learning carried out successfully? YES >> GO TO 2.
NO >> Follow the instruction of Idle Air Volume Learning.

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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.

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>> INSPECTION END

YES >> Go to
EC-381, " Diagnosis Procedure " .
NO >> INSPECTION END DTC No. Trouble diagnosis name DTC detecting condition Possible cause
P1805 Brake switch A brake switch signal is not sent to ECM
for extremely long time while the vehicle is
driving. • Harness or connectors
(Stop lamp switch circuit is open or shorted.)
• Stop lamp switch

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Wiring Diagram
INFOID:0000000004780697
Diagnosis Procedure INFOID:0000000004780299 B

YES >> GO TO 4.
NO >> GO TO 2. YES >> GO TO 4.
NO >> GO TO 3. YES >> GO TO 5.
NO >> Repair open circuit or short to ground or short to power in harness or connectors. Component Inspection (Stop Lamp Switch) " .
Is the inspection result normal? YES >> GO TO 6.Brake pedal Stop lamp
Fully released Not illuminated
Slightly depressed Illuminated Stop lamp switch
Ground Voltage
Connector Terminal
E13 1 Ground Battery voltage

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NO >> Replace stop lamp switch. Diagnosis Procedure " .
>> INSPECTION END
Component Inspection (Stop Lamp Switch) INFOID:0000000004780300YES >> INSPECTION END
NO >> GO TO 2. Inspection and Adjustment " .
2. Check the continuity between stop lamp switch terminals under the following conditions.
Is the inspection result normal? YES >> INSPECTION END
NO >> Replace stop lamp switch. Terminals Condition Continuity
1 and 2 Brake pedal Fully released Not existed
Slightly depressed Existed

P2100 >> GO TO 2.
P2103 >> GO TO 3. YES >> Go to
EC-385, " Diagnosis Procedure " .
NO >> INSPECTION END YES >> Go to
EC-385, " Diagnosis Procedure " .
NO >> INSPECTION END DTC No. Trouble diagnosis name DTC detecting condition Possible cause
P2100 Throttle control motor
relay circuit open ECM detects a voltage of power source for
throttle control motor is excessively low. • Harness or connectors
(Throttle control moto r relay circuit is
open)
• Throttle control motor relay
P2103 Throttle control motor
relay circuit short ECM detect the throttle control motor relay is
stuck ON. • Harness or connectors
(Throttle control moto r relay circuit is
shorted)
• Throttle control motor relay