Nissan Murano Z51. Instruction — part 1524
WT-34
< DTC/CIRCUIT DIAGNOSIS >
C1734 BCM
C1734 BCM
DTC Logic
INFOID:0000000005575997
DTC DETECTION LOGIC
DTC CONFIRMATION PROCEDURE
1.
DTC REPRODUCTION PROCEDURE
With CONSULT-III
1.
Drive at a speed of 40 km/h (25 MPH) or more for several minutes without stopping.
2.
Perform “SELF-DIAG RESULTS” in “AIR PRESSURE MONITOR” of “BCM”.
CAUTION:
Perform within 15 minutes after stop the vehicle.
Is DTC “C1734” detected?
YES
>> Perform trouble diagnosis. Refer to
NO
>> INSPECTION END
Diagnosis Procedure
INFOID:0000000005575998
1.
CHECK BCM POWER SUPPLY
1.
Turn the ignition switch OFF.
2.
Disconnect BCM harness connector.
3.
Check voltage between BCM harness connector terminals and ground.
Is the power supply normal?
YES
>> GO TO 2.
NO
>>
Check the following. If any items are damaged, repair or replace damage parts.
• 40A fusible link [No. L located in the fuse block]. Refer to
PG-114, "Fuse and Fusible Link
.
• 10A fuse [No. 10 located in the fuse block (J/B)]. Refer to
PG-113, "Fuse, Connector and Termi-
• Harness for short or open between battery and BCM harness connector M118 terminal 1.
• Harness for short or open between battery and BCM harness connector M119 terminal 11.
• Check the Battery voltage.
2.
CHECK BCM GROUND
Check the continuity between BCM harness connector and ground.
Is the inspection result normal?
YES
>> GO TO 3.
NO
>> Repair or replace damaged parts.
3.
CHECK HARNESS BETWEEN BCM AND TIRE PRESSURE RECEIVER
1.
Disconnect tire pressure receiver harness connector.
2.
Check the continuity between BCM harness connector and tire pressure receiver harness connector.
DTC
Display item
Malfunction detected condition
Possible case
C1734
CONTROL UNIT
Tire pressure monitoring system malfunction in BCM
BCM malfunction
BCM
—
Voltage
Connector
Terminal
M118
1
Ground
Battery voltage
M119
11
BCM
—
Continuity
Connector
Terminal
M119
13
Ground
Existed
C1734 BCM
WT-35
< DTC/CIRCUIT DIAGNOSIS >
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3.
Check the continuity between BCM harness connector and ground.
Is the inspection result normal?
YES
>> GO TO 4.
NO
>> Repair or replace damaged parts.
4.
CHECK BCM
Check the BCM input/output signal. Refer to
.
Is the inspection result normal?
YES
>> INSPECTION END
NO
>> GO TO 5.
5.
CHECK BCM HARNESS CONNECTOR
Check the BCM pin terminals for damage or loose connection with harness connector.
Is the inspection result normal?
YES
>> Replace BCM. Refer to
.
NO
>> Check for looseness or damage at the harness connector pins of the low tire pressure warning
control unit. Repair or replace if necessary.
Special Repair Requirement
INFOID:0000000005575999
1.
CHECK TIRE PRESSURE
Check all tires for tire pressures. Refer to
.
Does all tire pressure data meet the specification?
YES
>> GO TO 2.
NO
>> Inspect or repair the tires or wheels and adjust the tire pressure to the specification.
2.
PERFORM ID REGISTRATION
Perform ID registration. Refer to
WT-22, "ID REGISTRATION PROCEDURE : Special Repair Requirement"
>> END
BCM
Tire pressure receiver
Continuity
Connector
Terminal
Connector
Terminal
M123
137
M21
1
Existed
138
4
139
2
BCM
—
Continuity
Connector
Terminal
M123
137
Ground
Not existed
138
139
WT-36
< DTC/CIRCUIT DIAGNOSIS >
TIRE PRESSURE RECEIVER
TIRE PRESSURE RECEIVER
Component Function Check
INFOID:0000000005576000
1.
TIRE PRESSURE MONITORING SYSTEM OPERATION
With CONSULT-III
1.
Drive for 3 minutes at a speed of 40 km/h (25 MPH) or more, then drive normally for 10 minutes.
2.
On “DATA MONITOR”, select “AIR PRESS FL”, “AIR PRESS FR”, “AIR PRESS RR” and “AIR PRESS
RL”, and check that the tire pressures match the standard value.
CAUTION:
Stop the vehicle and within 5 minutes, use CONSULT-III “DATA MONITOR” to display the tire pressure
for all wheels.
Is the inspection result normal?
YES
>> INSPECTION END
NO
>> Perform trouble diagnosis. Refer to
Diagnosis Procedure
INFOID:0000000005576001
1.
CHECK TIRE PRESSURE RECEIVER SIGNAL
1.
Turn the ignition switch ON.
CAUTION:
Never start the engine.
2.
Check tire pressure receiver connector and ground signal with oscilloscope.
Is the inspection result normal?
YES
>> INSPECTION END
NO
>> GO TO 2.
2.
CHECK TIRE PRESSURE RECEIVER INPUT VOLTAGE
1.
Disconnect tire pressure receiver connector.
2.
Check voltage between tire pressure receiver connector and ground.
Monitor item
Condition
Displayed value
AIR PRESS FL
Drive for 3 minutes at a speed of 40 km/h (25 MPH) or
more, then drive normally for 10 minutes.
Internal pressure of tires
AIR PRESS FR
AIR PRESS RR
AIR PRESS RL
Tire pressure receiver
—
Condition
Voltage (Approx.)
Connector
Terminal
M21
2
Ground
Stand by state
When receiving the signal from the trans-
mitter
OCC3881D
OCC3880D
TIRE PRESSURE RECEIVER
WT-37
< DTC/CIRCUIT DIAGNOSIS >
C
D
F
G
H
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L
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A
B
WT
N
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Is the inspection result normal?
YES
>> GO TO 3.
NO
>> Repair or replace damaged parts.
3.
CHECK TIRE PRESSURE RECEIVER GROUND CIRCUIT
1.
Disconnect BCM harness connector.
2.
Check continuity between BCM harness connector and tire pressure receiver connector.
3.
Check continuity between BCM harness connector and ground.
Is the inspection result normal?
YES
>> GO TO 4.
NO
>> Repair or replace damaged parts.
4.
CHECK BCM CIRCUIT
Inspect the BCM circuit. Refer to
.
Is the BCM circuit normal?
YES
>> Replace tire pressure receiver. Refer to
WT-59, "Removal and Installation"
.
NO
>> Replace BCM. Refer to
.
Tire pressure receiver
—
Voltage (Approx.)
Connector
Terminal
M21
4
Ground
5.0 V
BCM
Tire pressure receiver
Continuity
Connector
Terminal
Connector
Terminal
M123
137
M21
1
Existed
BCM
—
Continuity
Connector
Terminal
M123
137
Ground
Not existed
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