Nissan Leaf. Manual — part 1288
C1729 VEHICLE SPEED SIGNAL
WT-31
< DTC/CIRCUIT DIAGNOSIS >
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C1729 VEHICLE SPEED SIGNAL
DTC Logic
INFOID:0000000010120195
DTC DETECTION LOGIC
DTC CONFIRMATION PROCEDURE
1.
DTC CONFIRMATION PROCEDURE
With CONSULT
1. Drive the vehicle.
2. Stop the vehicle.
3. Perform “Self Diagnostic Result“” in “AIR PRESSURE MONITOR” of “BCM”.
Is DTC “C1729” detected?
YES
>> Proceed to
.
NO
>> Inspection End.
Diagnosis Procedure
INFOID:0000000010120196
1.
PERFORM ABS ACTUATOR AND ELECTRIC UNIT (CONTROL UNIT) SELF DIAGNOSTIC RESULT
With CONSULT
Perform “Self Diagnostic Result””“ for “ABS”.
Are any DTCs detected?
YES
>> Refer to
.
NO
>> GO TO 2.
2.
CHECK BCM INPUT/OUTPUT SIGNAL
Check the BCM input/output signal values. Refer to
.
Is the inspection result normal?
YES
>> Check pin terminal and connection of each harness connector for malfunctioning conditions.
NO
>> Replace the BCM. Refer to
BCS-72, "Removal and Installation"
DTC
Display Item
Malfunction detected condition
Possible causes
C1729
VHCL SPEED SIG ERR
Vehicle speed signal not detected.
• CAN communication
• BCM
• ABS actuator and electric unit (control unit) mal-
function
WT-32
< DTC/CIRCUIT DIAGNOSIS >
POWER SUPPLY AND GROUND CIRCUIT
POWER SUPPLY AND GROUND CIRCUIT
Diagnosis Procedure
INFOID:0000000010120197
Regarding Wiring Diagram information, refer to
.
1.
CHECK FUSE AND FUSIBLE LINK
Check that the following fuse and fusible link are not blown:
Is the fuse or fusible link blown?
YES
>> Replace the blown fuse or fusible link after repairing the affected circuit.
NO
>> GO TO 2.
2.
CHECK POWER SUPPLY CIRCUIT
1. Disconnect BCM connector M25.
2. Check voltage between BCM connector M25 and ground.
Is the inspection result normal?
YES
>> GO TO 3.
NO
>> Repair or replace harness or connectors.
3.
CHECK GROUND CIRCUIT
Check continuity between BCM connector M25 and ground.
Is the inspection result normal?
YES
>> Inspection End.
NO
>> Repair or replace harness or connectors.
Terminal No.
Signal name
Fuse and fusible link No.
57
Battery power supply
9 (10A)
70
H (40A)
BCM
Ground
Voltage
(Approx.)
Connector
Terminal
M25
57
—
Battery voltage
70
BCM
Ground
Continuity
Connector
Terminal
M25
67
—
Yes
TPMS
WT-33
< SYMPTOM DIAGNOSIS >
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SYMPTOM DIAGNOSIS
TPMS
Symptom Table
INFOID:0000000010120198
LOW TIRE PRESSURE WARNING LAMP SYMPTOM CHART
WT-34
< SYMPTOM DIAGNOSIS >
TPMS
Diagnosis
items
Symptom
(Power switch ON)
Low tire pressure warning lamp
Cause
Action
Low tire pres-
sure warning
lamp
The low tire pres-
sure warning lamp
illuminates for 1
second, then turns
OFF.
Wake-up operation for
all tire pressure sensors
at wheels is completed.
No system malfunctions.
The low tire pres-
sure warning lamp
repeats blinking
ON for 2 seconds
and OFF for 0.2
seconds.
Wake-up operation for
all tire pressure sensors
at wheels is not complet-
ed.
Perform the ID registration
for all tire pressure sensors
at wheels. Refer to
The low tire pres-
sure warning lamp
blinks once.
The front left tire pres-
sure sensor is not acti-
vated.
Perform the ID registration
for the tire pressure sensor
at front left wheel. Refer to
The low tire pres-
sure warning lamp
repeats blinking
twice.
The front right tire pres-
sure sensor is not acti-
vated.
Perform the ID registration
for the tire pressure sensor
at front right wheel. Refer
to
The low tire pres-
sure warning lamp
repeats blinking
for 3 times.
The rear right tire pres-
sure sensor is not acti-
vated.
Perform the ID registration
for the tire pressure sensor
at rear right wheel. Refer to
The low tire pres-
sure warning lamp
repeats blinking
for 4 times.
The rear left tire pres-
sure sensor is not acti-
vated.
Perform the ID registration
for the tire pressure sensor
at rear left wheel. Refer to
The low tire pres-
sure warning lamp
turns ON and
stays illuminated.
Low tire pressure.
Check the tire pressure for
all wheels and adjust to the
specified value. Refer to
SEIA0592E
SEIA0593E
JPEIC0090GB
SEIA0595E
SEIA0596E
SEIA0597E
SEIA0598E
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