Nissan March K13. Manual — part 236
P0117, P0118 ECT SENSOR
EC-405
< DTC/CIRCUIT DIAGNOSIS >
[HR12DE (TYPE 2)]
C
D
E
F
G
H
I
J
K
L
M
A
EC
N
P
O
Check engine coolant temperature sensor. Refer to
EC-405, "Component Inspection"
Is the inspection result normal?
YES
>> GO TO 4.
NO
>> Replace engine coolant temperature sensor. Refer to
4.
CHECK INTERMITTENT INCIDENT
Check intermittent incident. Refer to
XX-XX, "*****"
.
>> Repair or replace malfunctioning part.
Component Inspection
INFOID:0000000006037335
1.
CHECK ENGINE COOLANT TEMPERATURE SENSOR
1.
Turn ignition switch OFF.
2.
Disconnect engine coolant temperature sensor harness connector.
3.
Remove engine coolant temperature sensor.
4.
Check resistance between engine coolant temperature sensor
terminals by heating with hot water as shown in the figure.
Is the inspection result normal?
YES
>> INSPECTION END
NO
>> Replace engine coolant temperature sensor. Refer to
Terminals
Condition
Resistance
1 and 2
Temperature [
°
C (
°
F)]
20 (68)
2.35 - 2.73 k
Ω
50 (122)
0.68 - 1.00 k
Ω
90 (194)
0.236 - 0.260 k
Ω
JMBIA0080ZZ
EC-406
< DTC/CIRCUIT DIAGNOSIS >
[HR12DE (TYPE 2)]
P0122, P0123 TP SENSOR
P0122, P0123 TP SENSOR
DTC Logic
INFOID:0000000006037336
DTC DETECTION LOGIC
NOTE:
If DTC P0122 or P0123 is displayed with DTC P0643, first perform the trouble diagnosis for DTC P0643.
Refer to
.
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 10 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
NO
>> INSPECTION END
Diagnosis Procedure
INFOID:0000000006037337
1.
CHECK THROTTLE POSITION SENSOR 2 POWER SUPPLY CIRCUIT
1.
Disconnect electric throttle control actuator harness connector.
2.
Turn ignition switch ON.
3.
Check the voltage between electric throttle control actuator harness connector and ground.
Is the inspection result normal?
YES
>> GO TO 2.
NO
>> Repair open circuit or short to ground or short to power in harness or connectors.
2.
CHECK THROTTLE POSITION SENSOR 2 GROUND CIRCUIT FOR OPEN AND SHORT
1.
Turn ignition switch OFF.
2.
Disconnect ECM harness connector.
3.
Check the continuity between electric throttle control actuator harness connector and ECM harness con-
nector.
DTC No.
Trouble diagnosis name
DTC detecting condition
Possible cause
P0122
Throttle position sensor
2 circuit low input
An excessively low voltage from the TP sensor
2 is sent to ECM.
• Harness or connectors
(TP sensor 2 circuit is open or shorted.)
• Electric throttle control actuator
(TP sensor 2)
P0123
Throttle position sensor
2 circuit high input
An excessively high voltage from the TP sensor
2 is sent to ECM.
Electric throttle control actuator
Ground
Voltage
Connector
Terminal
F29
1
Ground
Approx. 5 V
Electric throttle control actuator
ECM
Continuity
Connector
Terminal
Connector
Terminal
F29
4
F16
36
Existed
P0122, P0123 TP SENSOR
EC-407
< DTC/CIRCUIT DIAGNOSIS >
[HR12DE (TYPE 2)]
C
D
E
F
G
H
I
J
K
L
M
A
EC
N
P
O
4.
Also check harness for short to ground and short to power.
Is the inspection result normal?
YES
>> GO TO 3.
NO
>> Repair open circuit or short to ground or short to power in harness or connectors.
3.
CHECK THROTTLE POSITION SENSOR 2 INPUT SIGNAL CIRCUIT FOR OPEN AND SHORT
1.
Check the continuity between electric throttle control actuator harness connector and ECM harness con-
nector.
2.
Also check harness for short to ground and short to power.
Is the inspection result normal?
YES
>> GO TO 4.
NO
>> Repair open circuit or short to ground or short to power in harness or connectors.
4.
CHECK THROTTLE POSITION SENSOR
Check throttle position sensor. Refer to
EC-407, "Component Inspection"
.
Is the inspection result normal?
YES
>> GO TO 5.
NO
>> Replace electric throttle control actuator. Refer to
EM-29, "WITH EGR CONTROL VALVE :
.
5.
CHECK INTERMITTENT INCIDENT
Check intermittent incident. Refer to
XX-XX, "*****"
.
>> Repair or replace malfunctioning part.
Component Inspection
INFOID:0000000006037338
1.
CHECK THROTTLE POSITION SENSOR
1.
Turn ignition switch OFF.
2.
Reconnect all harness connectors disconnected.
3.
.
4.
Turn ignition switch ON.
5.
Set selector lever to D (A/T) 1st (M/T) position.
6.
Check the voltage between ECM harness connector and ground.
Is the inspection result normal?
YES
>> INSPECTION END
NO
>> GO TO 2.
2.
REPLACE ELECTRIC THROTTLE CONTROL ACTUATOR
1.
Replace electric throttle control actuator.
2.
EC-408, "Special Repair Requirement"
Electric throttle control actuator
ECM
Continuity
Connector
Terminal
Connector
Terminal
F29
3
F16
34
Existed
ECM
Condition
Voltage
Connector
Terminal
+
−
F8
33
(TP sensor 1 signal)
36
Accelerator pedal
Fully released
More than 0.36 V
Fully depressed
Less than 4.75 V
34
(TP sensor 2 signal)
Fully released
Less than 4.75 V
Fully depressed
More than 0.36 V
EC-408
< DTC/CIRCUIT DIAGNOSIS >
[HR12DE (TYPE 2)]
P0122, P0123 TP SENSOR
>> INSPECTION END
Special Repair Requirement
INFOID:0000000006037339
1.
PERFORM THROTTLE VALVE CLOSED POSITION LEARNING
Perform throttle valve closed position learning. Refer to
.
>> GO TO 2
2.
PERFORM IDLE AIR VOLUME LEARNING
Perform idle air volume learning. Refer to
.
>> END
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