Nissan Leaf. Manual — part 1169
TM-82
< DTC/CIRCUIT DIAGNOSIS >
[ELECTRIC SHIFT]
P1896 SHIFT POWER SUPPLY
P1896 SHIFT POWER SUPPLY
DTC Logic
INFOID:0000000010119593
DTC DETECTION LOGIC
Position Pattern Table
DTC CONFIRMATION PROCEDURE
1.
PREPARATION BEFORE WORK
If another "DTC CONFIRMATION PROCEDURE" occurs just before, power switch OFF and wait for at least
10 seconds, then perform the next test.
>> GO TO 2.
2.
PERFORM DTC CONFIRMATION PROCEDURE
With CONSULT
1. Set the vehicle to READY.
2. Select “Data Monitor” in “SHIFT”.
3. Select “RANGE POSITION”.
4. Shift the selector lever as follows. (Hold the selector lever at each position for 2 seconds or more.)
-
H
→ N → R → N → D → N → H
5. Repeat step 4 five times.
6. Check DTC.
Is “P1896” detected?
YES
>> Go to
NO-1 >> To check malfunction symptom before repair: Refer to
GI-53, "Intermittent Incident"
.
NO-2 >> Confirmation after repair: INSPECTION END
Diagnosis Procedure
INFOID:0000000010119594
1.
CHECK ELECTRIC SHIFT SENSOR INPUT SIGNAL
With CONSULT
1. Set the vehicle to READY.
2. Select “Data Monitor” in “SHIFT”.
3. Select “SHIFT SENSOR 1”, “SHIFT SENSOR 2”, “SHIFT SENSOR 3”, “SHIFT SENSOR 4”, “SHIFT SEN-
SOR 5”, and “SHIFT SENSOR 6”.
4. Operate the selector lever to identify a electric shift sensor of which value does not change.
DTC
CONSULT screen terms
(Trouble diagnosis content)
DTC detection condition
Possible cause
P1896
SHIFT POWER SUPPLY
(Electric Shift Sensor Power
Supply)
It is detected that electric shift sensors No. 1, 3, and
5 are stuck at OFF.
• Electric shift sensor
• Electric shift control module
• Harness or connectors
(Each circuit is open or short-
ed.)
It is detected that electric shift sensors No. 2, 4, and
6 are stuck at OFF.
Electric shift control module
recognition position
Selector lever position
Electric shift sensor
No. 1
No. 2
No. 3
No. 4
No. 5
No. 6
H
H
OFF
OFF
ON
OFF
OFF
ON
P
H
OFF
OFF
ON
OFF
OFF
ON
R
R
ON
ON
OFF
OFF
OFF
OFF
N
N
OFF
ON
ON
ON
OFF
OFF
D
D
OFF
OFF
OFF
ON
ON
OFF
P1896 SHIFT POWER SUPPLY
TM-83
< DTC/CIRCUIT DIAGNOSIS >
[ELECTRIC SHIFT]
C
E
F
G
H
I
J
K
L
M
A
B
TM
N
O
P
Without CONSULT
1. Set the vehicle to READY.
2. Operate the selector lever.
3. Check the voltage between VCM vehicle side harness connector terminal and ground.
>> GO TO 2.
2.
CHECK ELECTRIC SHIFT SENSOR POWER SUPPLY CIRCUIT
1. Power switch OFF.
2. Disconnect the electric shift sensor connector.
3. Power switch ON.
4. Check the power circuit of the malfunctioning electric shift sensor identified at Step 1.
5. Check the voltage between electric shift sensor vehicle side harness connector terminal and ground.
Is the inspection result normal?
Monitor item
Condition
Value / Status
SHIFT SENSOR 1
Selector lever is held in R position
ON
Other than the above
OFF
SHIFT SENSOR 2
Selector lever is held in R and N positions
ON
Other than the above
OFF
SHIFT SENSOR 3
Selector lever is held in H (Home) and N positions
ON
Other than the above
OFF
SHIFT SENSOR 4
Selector lever is held in N and D positions
ON
Other than the above
OFF
SHIFT SENSOR 5
Selector lever is held in D position
ON
Other than the above
OFF
SHIFT SENSOR 6
Selector lever in H (Home) position
ON
Other than the above
OFF
Electric
shift sen-
sor
VCM
Ground
Condition
Voltage
(Approx.)
Connector
terminal
1
E61
17
Ground
Selector lever is held in R position
0 V
Other than the above
5 V
3
16
Selector lever is held in H (Home) and N posi-
tions
0 V
Other than the above
5 V
5
3
Selector lever is held in D position
0 V
Other than the above
5 V
2
E62
84
Selector lever is held in R and N positions
0 V
Other than the above
5 V
4
85
Selector lever is held in N and D position
0 V
Other than the above
5 V
6
86
Selector lever in H (Home) position
0 V
Other than the above
5 V
Electric shift sensor
Electric shift sensor
Ground
Voltage
(Approx.)
Connector
Terminal
1, 3, 5
M57
1
Ground
5 V
2, 4, 6
7
TM-84
< DTC/CIRCUIT DIAGNOSIS >
[ELECTRIC SHIFT]
P1896 SHIFT POWER SUPPLY
YES
>> GO TO 4.
NO
>> GO TO 3.
3.
CHECK HARNESS BETWEEN VCM AND ELECTRIC SHIFT SENSOR
1. Power switch OFF.
2. Disconnect the VCM connector.
3. Check the continuity between VCM vehicle side harness connector terminal and electric shift sensor vehi-
cle side harness connector terminal.
4. Check the continuity between VCM vehicle side harness connector terminal and ground.
Is the inspection result normal?
YES
>> Replace the VCM due to malfunction in the electric shift control module built in VCM. Refer to
EVC-423, "Removal and Installation"
NO
>> Repair or replace damaged parts.
4.
CHECK ELECTRIC SHIFT SENSOR GROUND CIRCUIT
1. Power switch OFF.
2. Disconnect the VCM connector.
3. Check the continuity between VCM vehicle side harness connector terminal and electric shift sensor vehi-
cle side harness connector terminal.
4. Check the continuity between VCM vehicle side harness connector terminal and ground.
Is the inspection result normal?
YES
>> GO TO 5.
NO
>> Repair or replace damaged parts.
5.
CHECK HARNESS BETWEEN VCM AND ELECTRIC SHIFT SENSOR
1. Check the continuity between VCM vehicle side harness connector terminal and electric shift sensor vehi-
cle side harness connector terminal.
Electric shift sensor
VCM
Electric shift sensor
Continuity
Connector
Terminal
Connector
Terminal
1, 3, 5
E61
7
M57
1
Existed
2, 4, 6
E62
83
7
Electric shift sensor
VCM
Ground
Continuity
Connector
Terminal
1, 3, 5
E61
7
Ground
Not existed
2, 4, 6
E62
83
Electric shift sensor
VCM
Electric shift sensor
Continuity
Connector
Terminal
Connector
Terminal
1, 3, 5
E61
57
M57
6
Existed
2, 4, 6
E62
124
12
Electric shift sensor
VCM
Ground
Continuity
Connector
Terminal
1, 3, 5
E61
57
Ground
Not existed
2, 4, 6
E62
124
P1896 SHIFT POWER SUPPLY
TM-85
< DTC/CIRCUIT DIAGNOSIS >
[ELECTRIC SHIFT]
C
E
F
G
H
I
J
K
L
M
A
B
TM
N
O
P
2. Check the continuity between VCM vehicle side harness connector terminals and ground.
Is the inspection result normal?
YES
>> Replace the electric shift sensor. Refer to
TM-122, "Disassembly and Assembly"
NO
>> Repair or replace damaged parts.
Electric shift sensor
VCM
Electric shift sensor
Continuity
Connector
terminal
Connector
terminal
1
E61
17
M57
11
Existed
3
16
10
5
3
9
2
E62
84
5
4
85
3
6
86
4
Electric shift sensor
VCM
Ground
Continuity
Connector
terminal
1
E61
17
Ground
Not existed
3
16
5
3
2
E62
84
4
85
6
86
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