2009 NISSAN TIIDA e control

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.

Checking Radiator Cap " .
Is the inspection result normal? YES >> GO TO 5.
NO >> Replace radiator cap. Inspection " .
Is the inspection result normal? YES >> GO TO 6.
NO >> Replace thermostat. Inspection " .
Is the inspection result normal? YES >> GO TO 7.
NO >> Replace water control valve Component Inspection " .
Is the inspection result normal? YES >> GO TO 8.
NO >> Replace engine coolant temperature sensor. Anti-freeze Coolant Mixture Ratio "
3 • Coolant level • Visual Coolant up to MAX level in
reservoir tank and radiator
filler neck CO-11, " Inspection "
4 • Radiator cap • Pressure tester
CO-14, " Checking Radiator Cap "
ON*
2
5 • Coolant leaks • Visual No leaks CO-11, " Inspection "
ON*
2
6 • Thermostat • Touch the upper and
lower radiator hosesBoth hoses should be hot
CO-23, " Inspection "
ON*
1
7 • Cooling fan motor • CONSULT-III Operating EC-422, " Component
Function Check "
OFF 8 • Combustion gas leak • Color checker chemical
tester 4 Gas analyzerNegative —
ON* 3
9 • Coolant temperature
gauge • Visual Gauge less than 3/4 when
driving —
• Coolant overflow to res- ervoir tank • Visual No overflow during driving
and idling CO-11, " Inspection "
OFF*
4
10 • Coolant return from res-
ervoir tank to radiator • Visual Should be initial level in
reservoir tank CO-25, " Inspection "
OFF 11 • Cylinder head • Straight gauge feeler
gauge0.1 mm (0.004 in) Maxi-
mum distortion (warping) EM-82, " Disassembly and
Assembly "
12 • Cylinder block and pis-
tons • Visual No scuffing on cylinder
walls or piston EM-103, " Inspection "

EC-372< COMPONENT DIAGNOSIS >
[HR16DE]
P1225 TP SENSOR
P1225 TP SENSOR
Description INFOID:0000000004780253
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:0000000004780254
DTC DETECTION 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 10 V at idle.
>> GO TO 2. 2.
PERFORM DTC CONFIRMATION PROCEDURE
1. Turn ignition switch ON.
2. Turn ignition switch OFF and wait at least 10 seconds.
3. Turn ignition switch ON.
4. Check 1st trip DTC.
Is 1st trip DTC detected? YES >> Go to
EC-372, " Diagnosis Procedure " .
NO >> INSPECTION END
Diagnosis Procedure INFOID:00000000047802551.
CHECK ELECTRIC THROTTLE CONTROL ACTUATOR VISUALLY
1. Turn ignition switch OFF.
2. Remove the intake air duct. PBIB0145E
DTC No. Trouble diagnosis name DTC detecting condition Possible cause
P1225 Closed throttle position
learning performance Closed throttle position learning value is excessively
low. • Electric throttle control actuator
(TP sensor 1 and 2)

EC
NP
O
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. Special Repair Requirement " .
>> INSPECTION END
Special Repair Requirement INFOID:0000000004780256THROTTLE VALVE CLOSED POSITION L
EARNING : Special Repair Requirement "
>> GO TO 2.
IDLE AIR VOLUME LEARNING : Special Repair Requirement "
>> END

EC-374< COMPONENT DIAGNOSIS >
[HR16DE]
P1226 TP SENSOR
P1226 TP SENSOR
Description INFOID:0000000004780257
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:0000000004780258
DTC DETECTION 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 10 V at idle.
>> GO TO 2. 2.
PERFORM DTC CONFIRMATION PROCEDURE
1. Turn ignition switch ON.
2. Turn ignition switch OFF, wait at least 10 seconds.
3. Turn ignition switch ON.
4. Repeat steps 2 and 3 for 32 times.
5. Check 1st trip DTC.
Is 1st trip DTC detected? YES >> Go to
EC-374, " Diagnosis Procedure " .
NO >> INSPECTION END
Diagnosis Procedure INFOID:00000000047802591.
CHECK ELECTRIC THROTTLE CONTROL ACTUATOR VISUALLY
1. Turn ignition switch OFF.
2. Remove the intake air duct. PBIB0145E
DTC No. Trouble diagnosis name DTC detecting condition Possible cause
P1226 Closed throttle position
learning performance Closed throttle position learning is not performed
successfully, repeatedly. • Electric throttle control actuator
(TP sensor 1 and 2)

P1226 TP SENSOR
EC-375
< COMPONENT DIAGNOSIS >
[HR16DE] C
D E
F
G H
I
J
K L
M A EC
NP
O
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

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

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