Nissan Leaf. Manual — part 547
EVC-212
< DTC/CIRCUIT DIAGNOSIS >
P2122, P2123 APP SENSOR
2.
CHECK APP SENSOR 1 POWER SUPPLY-2
Check the voltage between APP sensor harness connector and ground.
Is the inspection result normal?
YES
>> GO TO 4.
NO
>> GO TO 3.
3.
CHECK APP SENSOR POWER SUPPLY CIRCUIT
1. Turn power switch OFF.
2. Disconnect VCM harness connector.
3. Check the continuity between APP sensor harness connector and VCM harness connector.
4. Also check harness for short to ground and snort to power.
Is the inspection result normal?
YES
>> Check VCM power supply circuit. Refer to
EVC-138, "VCM : Diagnosis Procedure"
.
NO
>> Repair or replace error-detected parts.
4.
CHECK APP SENSOR GROUND CIRCUIT
1. Turn power switch OFF.
2. Disconnect VCM harness connector.
3. Check the continuity between APP sensor harness connector and VCM harness connector.
4. Also check harness for snort to power.
Is the inspection result normal?
YES
>> GO TO 5.
NO
>> Repair or replace error-detected parts.
5.
CHECK VCM GROUND CIRCUIT
Check the continuity between VCM harness connector and ground.
Is the inspection result normal?
+
−
Voltage
(Approx.)
APP sensor
Connector
Terminal
E101
3
Ground
5 V
+
−
Continuity
APP sensor
VCM
Connector
Terminal
Connector
Terminal
E101
3
E61
36
Existed
+
−
Continuity
APP sensor
VCM
Connector
Terminal
Connector
Terminal
E101
5
E61
62
Existed
+
−
Continuity
VCM
Connector
Terminal
E61
58
Ground
Existed
65
E62
118
126
P2122, P2123 APP SENSOR
EVC-213
< DTC/CIRCUIT DIAGNOSIS >
D
E
F
G
H
I
J
K
L
M
A
B
EVC
N
O
P
YES
>> Check intermittent incident. Refer to
GI-53, "Intermittent Incident"
.
NO
>> Repair or replace error-detected parts.
6.
CHECK APP SENSOR SIGNAL CIRCUIT
1. Turn power switch OFF.
2. Disconnect VCM harness connector.
3. Check the continuity between APP sensor harness connector and VCM harness connector.
4. Also check harness for short to ground and snort to power.
Is the inspection result normal?
YES
>> GO TO 7.
NO
>> Repair or replace error-detected parts.
7.
CHECK APP SENSOR
EVC-213, "Component Inspection (Accelerator Pedal Position Sensor)"
.
Is the inspection result normal?
YES
>> Check intermittent incident. Refer to
GI-53, "Intermittent Incident"
.
NO
>> Replace Accelerator pedal. Refer to
ACC-4, "Removal and Installation"
.
Component Inspection (Accelerator Pedal Position Sensor)
INFOID:0000000010120666
1.
CHECK ACCELERATOR PEDAL POSITION (APP) SENSOR
1. Turn power switch OFF.
2. Reconnect all harness connectors disconnected.
3. Turn power switch ON.
4. Check the voltage VCM harness connector terminals under the following conditions.
Is the inspection result normal?
YES
>> INSPECTION END
NO
>> Replace accelerator pedal. Refer to
ACC-4, "Removal and Installation"
.
+
−
Continuity
APP sensor
VCM
Connector
Terminal
Connector
Terminal
E101
4
E62
49
Existed
VCM
Condition
Voltage (V)
Connector
+
–
Terminal
Terminal
E61
49 (APP sensor 1)
62
Accelerator pedal
Fully released
0.6 - 0.9
Fully depressed
3.9 - 4.8
E62
108 (APP sensor 2)
122
Fully released
0.3 - 0.45
Fully depressed
1.95 - 2.4
EVC-214
< DTC/CIRCUIT DIAGNOSIS >
P2127, P2128 APP SENSOR
P2127, P2128 APP SENSOR
DTC Logic
INFOID:0000000010120667
DTC DETECTION LOGIC
NOTE:
If DTC P2127 or P2128 is displayed with DTC P31E5, first perform the trouble diagnosis for DTC P31E5.
Refer to
DTC CONFIRMATION PROCEDURE
1.
PRECONDITIONING
• Turn power switch OFF and wait at least 90 seconds.
CAUTION:
During this period, never perform vehicle handling such as opening and closing of doors. If some
kind of vehicle handling is performed, then wait another 90 seconds or more from the time of the
vehicle handling.
• Make sure that 12V battery voltage is 11 V or more.
>> GO TO 2.
2.
PERFORM DTC CONFIRMATION PROCEDURE
1. Turn power switch ON and wait at least 1 second.
2. Check self-diagnostic result.
Is DTC detected?
YES
>> Proceed to
EVC-214, "Diagnosis Procedure"
NO
>> INSPECTION END
Diagnosis Procedure
INFOID:0000000010120668
1.
CHECK APP SENSOR 2 POWER SUPPLY-1
1. Turn power switch OFF.
2. Disconnect accelerator pedal position (APP) sensor harness connector.
3. Turn power switch ON.
4. Check the voltage between APP sensor harness connector terminals.
Is the inspection result normal?
YES
>> GO TO 6.
NO
>> GO TO 2.
2.
CHECK APP SENSOR 2 POWER SUPPLY-2
Check the voltage between APP sensor harness connector and ground.
DTC
CONSULT screen terms
(Trouble diagnosis content)
DTC detecting condition
Possible cause
P2127
APP SENSOR E
(Throttle/Pedal position sen-
sor/switch “E” circuit low)
An excessively low voltage from the APP sensor 2 is
sent to VCM.
• Harness or connectors
(Accelerator pedal position sen-
sor 2 circuit is shorted.)
• Accelerator pedal position sen-
sor 2
P2128
APP SENSOR E
(Throttle/Pedal position sen-
sor/switch “E” circuit high)
An excessively high voltage from the APP sensor 2 is
sent to VCM.
APP sensor
Voltage
(Approx.)
Connector
+
−
Terminal
E101
2
6
5 V
P2127, P2128 APP SENSOR
EVC-215
< DTC/CIRCUIT DIAGNOSIS >
D
E
F
G
H
I
J
K
L
M
A
B
EVC
N
O
P
Is the inspection result normal?
YES
>> GO TO 4.
NO
>> GO TO 3.
3.
CHECK APP SENSOR POWER SUPPLY CIRCUIT
1. Turn power switch OFF.
2. Disconnect VCM harness connector.
3. Check the continuity between APP sensor harness connector and VCM harness connector.
4. Also check harness for short to ground and snort to power.
Is the inspection result normal?
YES
>> Perform trouble diagnosis for VCM power supply circuit. Refer to
.
NO
>> Repair or replace error-detected parts.
4.
CHECK APP SENSOR GROUND CIRCUIT
1. Turn power switch OFF.
2. Disconnect VCM harness connector.
3. Check the continuity between APP sensor harness connector and VCM harness connector.
4. Also check harness for snort to power.
Is the inspection result normal?
YES
>> GO TO 5.
NO
>> Repair or replace error-detected parts.
5.
CHECK VCM GROUND CIRCUIT
Check the continuity between VCM harness connector and ground.
Is the inspection result normal?
YES
>> Check intermittent incident. Refer to
GI-53, "Intermittent Incident"
.
NO
>> Repair or replace error-detected parts.
+
−
Voltage
(Approx.)
APP sensor
Connector
Terminal
E101
2
Ground
5 V
+
−
Continuity
APP sensor
VCM
Connector
Terminal
Connector
Terminal
E101
2
E62
97
Existed
+
−
Continuity
APP sensor
VCM
Connector
Terminal
Connector
Terminal
E101
6
E62
122
Existed
+
−
Continuity
VCM
Connector
Terminal
E61
58
Ground
Existed
65
E63
118
126
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