Nissan Tiida C11. Manual — part 569
EC-926
< COMPONENT DIAGNOSIS >
[MR18DE]
P1226 TP SENSOR
P1226 TP SENSOR
Description
INFOID:0000000001161903
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 potentiometers which transform the throttle valve position into
output voltage, and emit the voltage signal to the ECM. In addition,
these sensors detect the opening and closing speed of the throttle
valve and feed the voltage signals to the ECM. The ECM judges the
current opening angle of the throttle valve from these signals and the
ECM controls the throttle control motor to make the throttle valve
opening angle properly in response to driving condition.
DTC Logic
INFOID:0000000001161904
DTC DETECTION LOGIC
DTC CONFIRMATION PROCEDURE
1.
PRECONDITIONING
If DTC Confirmation Procedure has been previously conducted, 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 10V 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
NO
>> INSPECTION END
Diagnosis Procedure
INFOID:0000000001161905
1.
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 per-
formed successfully, repeatedly.
• Electric throttle control actuator
(TP sensor 1 and 2)
P1226 TP SENSOR
EC-927
< COMPONENT DIAGNOSIS >
[MR18DE]
C
D
E
F
G
H
I
J
K
L
M
A
EC
N
P
O
3.
Check if foreign matter is caught between the throttle valve (1)
and the housing.
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.
Go to
EC-925, "Special Repair Requirement"
.
>> INSPECTION END
Special Repair Requirement
INFOID:0000000001161906
1.
PERFORM THROTTLE VALVE CLOSED POSITION LEARNING
EC-694, "THROTTLE VALVE CLOSED POSITION LEARNING : Special Repair Requirement"
>> GO TO 2.
2.
PERFORM IDLE AIR VOLUME LEARNING
EC-694, "IDLE AIR VOLUME LEARNING : Special Repair Requirement"
>> END
2.
Electric throttle control actuator
JMBIA0447ZZ
EC-928
< COMPONENT DIAGNOSIS >
[MR18DE]
P1229 SENSOR POWER SUPPLY
P1229 SENSOR POWER SUPPLY
DTC Logic
INFOID:0000000001161907
DTC DETECTION LOGIC
DTC CONFIRMATION PROCEDURE
1.
PRECONDITIONING
If DTC Confirmation Procedure has been previously conducted, 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 10V 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
NO
>> INSPECTION END
Diagnosis Procedure
INFOID:0000000001161908
1.
CHECK GROUND CONNECTION
1.
Turn ignition switch OFF.
2.
Check ground connection E15. Refer to Ground Inspection in
.
Is the inspection result normal?
YES
>> GO TO 2.
NO
>> Repair or replace ground connection.
2.
CHECK ACCELERATOR PEDAL POSITION SENSOR 1 POWER SUPPLY CIRCUIT
1.
Disconnect accelerator pedal position (APP) sensor harness connector.
2.
Turn ignition switch ON.
3.
Check the voltage between APP sensor harness connector and ground.
Is the inspection result normal?
YES
>> GO TO 7.
NO
>> GO TO 3.
3.
CHECK SENSOR POWER SUPPLY CIRCUITS
DTC No.
Trouble diagnosis
name
DTC detecting condition
Possible cause
P1229
Sensor power supply
circuit short
ECM detects a voltage of power source for
sensor is excessively low or high.
• Harness or connectors
(APP sensor 1 circuit is shorted.)
(TP sensor circuit is shorted.)
[Camshaft position sensor (PHASE) circuit is
shorted.]
• Accelerator pedal position sensor 1 (APPS 1)
• Throttle position sensor
• Camshaft position sensor (PHASE)
APP sensor
Ground
Voltage
Connector
Terminal
E12 (LHD models)
M204 (RHD models)
4
Ground
Approx. 5V
P1229 SENSOR POWER SUPPLY
EC-929
< COMPONENT DIAGNOSIS >
[MR18DE]
C
D
E
F
G
H
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EC
N
P
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Check harness for short to power and short to ground, between the following terminals.
Is the inspection result normal?
YES
>> GO TO 4.
NO
>> Repair short to ground or short to power in harness or connectors.
4.
CHECK COMSHAFT PSITION SENSOR
EC-868, "Component Inspection"
Is the inspection result normal?
YES
>> GO TO 5.
NO
>> Replace malfunctioning component.
5.
CHECK TP SENSOR
EC-958, "Component Inspection"
Is the inspection result normal?
YES
>> GO TO 7.
NO
>> GO TO 8.
6.
REPLACE ELECTRIC THROTTLE CONTROL ACTUATOR
1.
Replace electric throttle control actuator.
2.
Go to
EC-958, "Component Inspection"
>> INSPECTION END
7.
CHECK APP SENSOR
EC-950, "Component Inspection"
Is the inspection result normal?
YES
>> GO TO 9.
NO
>> GO TO 8.
8.
REPLACE ACCELERATOR PEDAL ASSEMBLY
1.
Replace accelerator pedal assembly.
2.
Go to
EC-693, "ACCELERATOR PEDAL RELEASED POSITION LEARNING : Special Repair Require-
.
>> INSPECTION END
9.
CHECK INTERMITTENT INCIDENT
GI-55, "Intermittent Incident"
.
>> INSPECTION END
ECM
Sensor
Connector
Terminal
Item
Connector
Terminal
F11
72
Electric throttle control actuator
F7
2
78
CMP sensor (PHASE)
F21
1
E16
106
APP sensor
E12 (LHD models)
M204 (RHD models)
4
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