Nissan Leaf. Manual — part 1172
TM-94
< DTC/CIRCUIT DIAGNOSIS >
[ELECTRIC SHIFT]
P189D BACK UP VOLTAGE
NO
>> Repair or replace damaged parts.
3.
DETECT MALFUNCTIONING ITEM
Check the following.
• Harness for short or open between VCM vehicle side harness connector and 12V battery.
• 12V battery
• 20A fuse (#77) (Refer to
.)
Is the inspection result normal?
YES
>> INSPECTION END
NO
>> Repair or replace damaged parts.
P18A3 CONTROL MODULE
TM-95
< DTC/CIRCUIT DIAGNOSIS >
[ELECTRIC SHIFT]
C
E
F
G
H
I
J
K
L
M
A
B
TM
N
O
P
P18A3 CONTROL MODULE
DTC Logic
INFOID:0000000010119606
DTC DETECTION LOGIC
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. Power switch OFF to ON and wait for 2 seconds or more.
2. Check DTC.
Is “P18A3” 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:0000000010119607
1.
REPLACE VCM
Replace the VCM due to malfunction in the electric shift control module built in VCM. Refer to
>> END
DTC
CONSULT screen terms
[Trouble diagnosis content]
DTC detection condition
Possible cause
P18A3
CONTROL MODULE
[Control Module (Program Manipulation)
Error]
A malfunction is detected in the elec-
tric shift control module.
Electric shift control module
TM-96
< DTC/CIRCUIT DIAGNOSIS >
[ELECTRIC SHIFT]
P18A4 CONTROL MODULE
P18A4 CONTROL MODULE
DTC Logic
INFOID:0000000010119608
DTC DETECTION LOGIC
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. Power switch OFF to ON and wait for 2 seconds or more.
2. Check DTC.
Is “P18A4” 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:0000000010119609
1.
REPLACE VCM
Replace the VCM due to malfunction in the electric shift control module built in VCM. Refer to
.
>> END
DTC
CONSULT screen terms
[Trouble diagnosis content]
DTC detection condition
Possible cause
P18A4
CONTROL MODULE
[Control Module (CPU) Error]
A malfunction is detected in the electric shift
control module.
Electric shift control module
P18A7 SHIFT SIGNAL OFF
TM-97
< DTC/CIRCUIT DIAGNOSIS >
[ELECTRIC SHIFT]
C
E
F
G
H
I
J
K
L
M
A
B
TM
N
O
P
P18A7 SHIFT SIGNAL OFF
DTC Logic
INFOID:0000000010119610
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 and wait for 5 seconds or more.
2. Check DTC.
Is “P18A7” 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:0000000010119611
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
P18A7
SHIFT SIGNAL OFF
(Electric Shift Sensor Circuit)
It is detected that the states of all electric shift
sensors No. 1 to No. 6 are OFF.
• Electric shift sensor
• Electric shift control module
• Harness or connectors
(Each circuit is open or shorted.)
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
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
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