Nissan X-Trail 32. Instruction — part 812
P2127, P2128 APP SENSOR
EC-377
< DTC/CIRCUIT DIAGNOSIS >
[MR20DD]
C
D
E
F
G
H
I
J
K
L
M
A
EC
N
P
O
4.
Check the voltage between ECM harness connector terminals as per the following condition.
Is the inspection result normal?
YES
>> INSPECTION END
NO
>> Replace accelerator pedal assembly. Refer to
ACC-4, "Removal and Installation"
ECM
Condition
Voltage
(Approx.)
Connector
+
–
Terminal
E16
126
127
Accelerator pedal
Fully released
0.6 - 0.9 V
Fully depressed
3.9 - 4.7 V
119
120
Fully released
0.3 - 0.6 V
Fully depressed
1.95 - 2.4 V
EC-378
< DTC/CIRCUIT DIAGNOSIS >
[MR20DD]
P2135 TP SENSOR
P2135 TP SENSOR
DTC Description
INFOID:0000000010775272
DTC DETECTION LOGIC
POSSIBLE CAUSE
• Harness or connector (TP sensor 1 or 2 circuit is open or shorted.)
• Electric throttle control actuator (TP sensor 1 or 2)
FAIL-SAFE
DTC CONFIRMATION PROCEDURE
1.
CHECK DTC PRIORITY
If DTC P2135 is displayed with DTC P0643, first perform the trouble diagnosis for DTC P0643.
Is applicable DTC detected?
YES
>> Perform diagnosis of applicable. Refer to
NO
>> GO TO 2.
2.
PRECONDITIONING
If DTC Confirmation Procedure has been previously conducted, always perform the following procedure
before conducting the next test.
1.
Turn ignition switch OFF and wait at least 10 seconds.
2.
Turn ignition switch ON.
3.
Turn ignition switch OFF and wait at least 10 seconds.
TESTING CONDITION:
Before performing the following procedure, confirm that battery voltage is more than 8 V at idle.
>> GO TO 3.
3.
PERFORM DTC CONFIRMATION PROCEDURE
1.
Start engine and let it idle for 1 second.
2.
Check DTC.
Is DTC detected?
YES
>> Proceed to
.
NO-1
>> To check malfunction symptom before repair: Refer to
GI-44, "Intermittent Incident"
.
NO-2
>> Confirmation after repair: INSPECTION END
Diagnosis Procedure
INFOID:0000000010775273
1.
CHECK DTC PRIORITY
DTC No.
CONSULT screen terms
(Trouble diagnosis content)
DTC detecting condition
P2135
TP SENSOR-B1
(Throttle/pedal position sensor/switch “A”/
“B” voltage correlation)
Rationally incorrect voltage is sent to ECM compared with the signals from
TP sensor 1 and TP sensor 2.
Engine operating condition in fail-safe mode
Fail safe mode
Vehicle behavior
Others
• The ECM controls the electric throttle control actuator in regulating the throttle opening in order
for the idle position to be within +10 degrees.
• The ECM regulates the opening speed of the throttle valve to be slower than the normal con-
dition. So, the acceleration will be poor.
NOTE:
If throttle position sensor1 and 2 malfunction at the same time conducts following control.
• ECM stops the electric throttle control actuator control, throttle valve is maintained at a fixed
opening (approx. 5 degrees) by the return spring.
P2135 TP SENSOR
EC-379
< DTC/CIRCUIT DIAGNOSIS >
[MR20DD]
C
D
E
F
G
H
I
J
K
L
M
A
EC
N
P
O
If DTC P2135 is displayed with DTC P0643, first perform the trouble diagnosis for DTC P0643.
Is applicable DTC detected?
YES
>> Perform diagnosis of applicable. Refer to
.
NO
>> GO TO 2.
2.
CHECK THROTTLE POSITION SENSOR POWER SUPPLY
1.
Turn ignition switch OFF.
2.
Disconnect electric throttle control actuator harness connector.
3.
Turn ignition switch ON.
4.
Check the voltage between electric throttle control actuator harness connector and ground.
Is the inspection result normal?
YES
>> GO TO 4.
NO
>> GO TO 3.
3.
CHECK THROTTLE POSITION SENSOR POWER SUPPLY CIRCUIT
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.
4.
Also check harness for short to ground.
Is the inspection result normal?
YES
>> Perform the trouble diagnosis for power supply circuit.
NO
>> Repair or replace malfunctioning part.
4.
CHECK THROTTLE POSITION SENSOR GROUND CIRCUIT
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.
4.
Also check harness for short to power.
Is the inspection result normal?
YES
>> GO TO 5.
NO
>> Repair or replace malfunctioning part.
5.
CHECK THROTTLE POSITION SENSOR INPUT SIGNAL CIRCUIT
1.
Check the continuity between electric throttle control actuator harness connector and ECM harness con-
nector.
+
−
Voltage
(Approx.)
Electric throttle control actuator
Connector
Terminal
F29
2
Ground
5 V
+
−
Continuity
Electric throttle control actu-
ator
ECM
Connector
Terminal
Connector
Terminal
F29
2
F8
60
Existed
+
−
Continuity
Electric throttle control actu-
ator
ECM
Connector
Terminal
Connector
Terminal
F29
4
F8
75
Existed
EC-380
< DTC/CIRCUIT DIAGNOSIS >
[MR20DD]
P2135 TP SENSOR
2.
Also check harness for short to ground and to power.
Is the inspection result normal?
YES
>> GO TO 6.
NO
>> Repair or replace malfunctioning part.
6.
CHECK THROTTLE POSITION SENSOR
Check the throttle position sensor. Refer to
EC-380, "Component Inspection"
Is the inspection result normal?
YES
>> INSPECTION END
NO
>> Replace electric throttle control actuator. Refer to
EM-33, "Removal and Installation"
Component Inspection
INFOID:0000000010775274
1.
CHECK THROTTLE POSITION SENSOR
1.
Turn ignition switch OFF.
2.
Reconnect all harness connectors disconnected.
3.
Perform “Throttle Valve Closed Position Learning”. Refer to
.
4.
Turn ignition switch ON.
5.
Set selector lever to D position.
6.
Check the voltage between ECM harness connector terminals as per the following conditions.
Is the inspection result normal?
YES
>> INSPECTION END
NO
>> Replace electric throttle control actuator. Refer to
EM-33, "Removal and Installation"
+
−
Continuity
Electric throttle control actu-
ator
ECM
Connector
Terminal
Connector
Terminal
F29
1
F8
63
Existed
3
71
ECM
Condition
Voltage
Connector
+
–
Terminal
F8
63
75
Accelerator pedal
Fully re-
leased
More than 0.36 V
Fully de-
pressed
Less than 4.75 V
71
Fully re-
leased
Less than 4.75 V
Fully de-
pressed
More than 0.36 V
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