Nissan Leaf. Manual — part 1171
TM-90
< DTC/CIRCUIT DIAGNOSIS >
[ELECTRIC SHIFT]
P189A MOTOR A
P189A MOTOR A
DTC Logic
INFOID:0000000010119600
DTC DETECTION LOGIC
DTC CONFIRMATION PROCEDURE
1.
PREPARATION BEFORE WORK
If another "DTC CONFIRMATION PROCEDURE" occurs just before, key 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 ON and wait for 2 seconds or more.
2. Check DTC.
Is “P189A” 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:0000000010119601
1.
CHECK HARNESS BETWEEN VCM AND MOTOR COIL A
1. Power switch OFF.
2. Disconnect the VCM connector.
3. Disconnect the parking actuator connector.
4. Check the continuity VCM vehicle side harness connector terminals and parking actuator vehicle side har-
ness connector terminals.
5. Check the continuity VCM vehicle side harness connector terminals and ground.
Is the inspection result normal?
YES
>> GO TO 2.
DTC
CONSULT screen terms
(Trouble diagnosis content)
DTC detection condition
Possible cause
P189A
MOTOR A
(Motor “A” Circuit Low)
When the power switch is ON, one of the phases
is in the energized state even though motor coil A
all phases are not energized.
NOTE:
Energized: Approx. 0 V, Non-energized: 9 – 16 V
• Parking actuator relay A (OFF stuck)
• Motor coil A (Parking actuator)
• Electric shift control module
• Harness or connectors
(Each circuit is open or ground short-
ed.)
VCM
Parking actuator
Continuity
Connector
Terminal
Connector
Terminal
E61
1
F4
1
Existed
13
6
39
7
VCM
Ground
Continuity
Connector
Terminal
E61
1
Ground
Not existed
13
39
P189A MOTOR A
TM-91
< DTC/CIRCUIT DIAGNOSIS >
[ELECTRIC SHIFT]
C
E
F
G
H
I
J
K
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M
A
B
TM
N
O
P
NO
>> Repair or replace damaged parts.
2.
CHECK PARKING ACTUATOR RELAY A
Check the parking actuator relay A. Refer to
TM-92, "Component Inspection (Parking Actuator Relay A)"
.
Is the inspection result normal?
YES
>> GO TO 3.
NO
>> Replace the parking actuator relay A. Refer to
TM-32, "Component Parts Location"
3.
CHECK HARNESS BETWEEN PARKING ACTUATOR RELAY A AND 12V BATTERY
Check the voltage parking actuator relay A vehicle side harness connector terminal and ground.
Is the inspection result normal?
YES
>> GO TO 5.
NO
>> GO TO 4.
4.
DETECT MALFUNCTIONING ITEM
Check the following.
• Harness for short or open between parking actuator relay A and 12V battery
• 12V battery
• 40A fuse (#O) (Refer to
Is the inspection result normal?
YES
>> INSPECTION END
NO
>> Repair or replace damaged parts.
5.
CHECK HARNESS BETWEEN PARKING ACTUATOR AND PARKING ACTUATOR RELAY A
Check the continuity parking actuator vehicle side harness connector terminal and parking actuator relay A
vehicle side harness connector terminal.
Is the inspection result normal?
YES
>> GO TO 6.
NO
>> Repair or replace damaged parts.
6.
CHECK HARNESS BETWEEN VCM AND PARKING ACTUATOR RELAY A
1. Check the continuity VCM vehicle side harness connector terminal and parking actuator relay A vehicle
side harness connector terminal.
2. Check the continuity VCM vehicle side harness connector terminal and ground.
Is the inspection result normal?
YES
>> GO TO 7.
NO
>> Repair or replace damaged parts.
Parking actuator relay A
Ground
Voltage
Connector
Terminal
E54
1
Ground
9 – 16 V
3
Parking actuator
Parking actuator relay A
Continuity
Connector
Terminal
Connector
Terminal
F4
2
E54
5
Existed
VCM
Parking actuator relay A
Continuity
Connector
Terminal
Connector
Terminal
E61
9
E54
2
Existed
VCM
Ground
Continuity
Connector
Terminal
E61
9
Ground
Not existed
TM-92
< DTC/CIRCUIT DIAGNOSIS >
[ELECTRIC SHIFT]
P189A MOTOR A
7.
CHECK MOTOR COIL A
Check the motor coil A (parking actuator). Refer to
TM-92, "Component Inspection (Motor Coil A)"
Is the inspection result normal?
YES
>> INSPECTION END
NO
>> Replace the reduction gear due to malfunction in the motor coil A (parking actuator). Refer to
21, "Removal and Installation"
.
Component Inspection (Parking Actuator Relay A)
INFOID:0000000010119602
1.
CHECK PARKING ACTUATOR RELAY A
1. Disconnect the parking actuator relay A. Refer to
TM-32, "Component Parts Location"
2. Apply 12 V direct current between parking actuator relay A terminals 1 and 2.
CAUTION:
• Never make the terminals short.
• Connect the fuse between the terminals when applying the voltage.
3. Check the continuity between parking actuator relay A terminals 3 and 5.
Is the inspection result normal?
YES
>> INSPECTION END
NO
>> Replace the parking actuator relay A.
Component Inspection (Motor Coil A)
INFOID:0000000010119603
1.
CHECK MOTOR COIL A
1. Disconnect the parking actuator connector.
2. Check the resistance between parking actuator connector terminals.
Is the inspection result normal?
YES
>> INSPECTION END
NO
>> Replace the reduction gear due to malfunction in the motor coil A (parking actuator). Refer to
21, "Removal and Installation"
.
Parking actuator relay A
Condition
Continuity
Terminal
3
5
Apply 12 V direct current between terminals 1 and 2.
Existed
Does not apply 12 V direct current between terminals 1 and 2.
Not existed
Parking actuator connector
Resistance
Terminal
2
1
2.3 – 2.8
Ω
6
7
P189D BACK UP VOLTAGE
TM-93
< DTC/CIRCUIT DIAGNOSIS >
[ELECTRIC SHIFT]
C
E
F
G
H
I
J
K
L
M
A
B
TM
N
O
P
P189D BACK UP VOLTAGE
DTC Logic
INFOID:0000000010119604
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 ON and wait for 5 seconds or more.
2. Check DTC.
Is “P189D” 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:0000000010119605
1.
CHECK MEMORY BACK UP POWER SUPPLY CIRCUIT
1. Power switch OFF.
2. Disconnect the VCM connector.
3. Check the voltage between VCM vehicle side harness connector terminal and ground.
Is the inspection result normal?
YES
>> GO TO 2.
NO
>> GO TO 3.
2.
CHECK GROUND CIRCUIT
Check the continuity between VCM vehicle side harness connector terminals 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"
.
DTC
CONSULT screen terms
(Trouble diagnosis content)
DTC detection condition
Possible cause
P189D
BACK UP VOLTAGE
(Memory Back Up Power
Supply)
It is detected that the memory backup power
supply voltage is specified value or less.
• Electric shift control module
• Harness, fuse, or connectors
(Each circuit is open or shorted.)
VCM
Ground
Voltage
(Approx.)
Connector
Terminal
E62
79
Ground
9 – 16 V
VCM
Ground
Continuity
Connector
Terminal
E61
58
Ground
Existed
65
E62
118
126
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