Nissan Murano Z51. Manual — part 1423
P0703 BRAKE SWITCH B
TM-43
< DTC/CIRCUIT DIAGNOSIS >
[CVT: RE0F09B]
C
E
F
G
H
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M
A
B
TM
N
O
P
P0703 BRAKE SWITCH B
Description
INFOID:0000000005513968
BCM detects ON/OFF state of the stop lamp switch and transmits the data to the TCM via CAN communica-
tion by converting the data to a signal.
DTC Logic
INFOID:0000000005513969
DTC DETECTION LOGIC
DTC CONFIRMATION PROCEDURE
CAUTION:
Always drive vehicle at a safe speed.
NOTE:
Immediately after performing any “DTC CONFIRMATION PROCEDURE”, always turn ignition switch OFF.
Then wait at least 10 seconds before performing the next test.
1.
CHECK DTC DETECTION
With CONSULT-III
1.
Turn ignition switch ON.
2.
Start engine.
3.
Drive vehicle for at least 3 consecutive seconds.
4.
Perform “Self Diagnostic Results” in “TRANSMISSION”.
Is “P0703” detected?
YES
>> Go to
NO
>> Check intermittent incident. Refer to
GI-39, "Intermittent Incident"
.
Diagnosis Procedure
INFOID:0000000005513970
1.
CHECK STOP LAMP SWITCH CIRCUIT
1.
Turn ignition switch OFF.
2.
Check and adjust the installation position of stop lamp switch. Refer to
BR-9, "Inspection and Adjustment"
.
3.
Disconnect BCM connector.
4.
Turn ignition switch ON.
5.
Check voltage between BCM vehicle side harness connector terminal and ground.
Is the inspection result normal?
YES
>> GO TO 5.
NO
>> GO TO 2.
2.
CHECK HARNESS BETWEEN STOP LAMP SWITCH AND BCM (PART 1)
1.
Turn ignition switch OFF.
2.
Disconnect stop lamp switch connector.
3.
Check continuity between stop lamp switch vehicle side harness connector terminal and BCM vehicle side
harness connector terminal.
DTC
Trouble diagnosis name
DTC is detected if...
Possible cause
P0703
Brake Switch B Circuit
When the brake switch does not switch to
ON or OFF.
• Harness or connectors
- (Stop lamp switch and BCM circuit are
open or shorted.)
- (CAN communication line is open or
shorted.)
• Stop lamp switch
BCM vehicle side harness connector
Ground
Condition
Voltage (Approx.)
Connector
Terminal
M123
118
Depressed brake pedal
Battery voltage
Released brake pedal
0 V
TM-44
< DTC/CIRCUIT DIAGNOSIS >
[CVT: RE0F09B]
P0703 BRAKE SWITCH B
Is the inspection result normal?
YES
>> GO TO 3.
NO
>> Repair or replace damaged parts.
3.
CHECK HARNESS BETWEEN STOP LAMP SWITCH AND BCM (PART 2)
Check continuity between BCM vehicle side harness connector terminal and ground.
Is the inspection result normal?
YES
>> GO TO 4.
NO
>> Repair or replace damaged parts.
4.
CHECK STOP LAMP SWITCH
Check stop lamp switch. Refer to
TM-44, "Component Inspection (Stop Lamp Switch)"
.
Is the inspection result normal?
YES
>>
Check the following.
• Harness for short or open between battery and stop lamp switch
• 10A fuse [No. 7, located in fuse block (J/B)]
NO
>> Repair or replace stop lamp switch.
5.
CHECK BCM
With CONSULT-III
1.
Turn ignition switch OFF.
2.
Connect BCM connector.
3.
Turn ignition switch ON.
4.
Select “BRAKE SW 1” in “Data Monitor” in “BCM” and verify the proper operation of ON/OFF. Refer to
Is the inspection result normal?
YES
>> GO TO 6.
NO
>> Replace BCM. Refer to
BCS-95, "Removal and Installation"
6.
DETECT MALFUNCTIONING ITEMS
Check TCM connector pin terminals for damage or loose connection with harness connector.
Is the inspection result normal?
YES
NO
>> Repair or replace damaged parts.
Component Inspection (Stop Lamp Switch)
INFOID:0000000005513971
1.
CHECK STOP LAMP SWITCH
Check continuity between stop lamp switch connector terminals.
Is the inspection result normal?
YES
>> INSPECTION END
Stop lamp switch vehicle side harness connector
BCM vehicle side harness connector
Continuity
Connector
Terminal
Connector
Terminal
E116
2
M123
118
Existed
BCM vehicle side harness connector
Ground
Continuity
Connector
Terminal
M123
118
Not existed
Stop lamp switch connector
Condition
Continuity
Connector
Terminal
E116
1
2
Depressed brake pedal
Existed
Released brake pedal
Not existed
P0703 BRAKE SWITCH B
TM-45
< DTC/CIRCUIT DIAGNOSIS >
[CVT: RE0F09B]
C
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B
TM
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NO
>> Replace stop lamp switch. Refer to
.
TM-46
< DTC/CIRCUIT DIAGNOSIS >
[CVT: RE0F09B]
P0705 TRANSMISSION RANGE SWITCH A
P0705 TRANSMISSION RANGE SWITCH A
Description
INFOID:0000000005513972
• The transmission range switch is included in the control valve assembly.
• The transmission range switch includes 4 transmission position switches.
• TCM judges the selector lever position by the transmission range switch signal.
DTC Logic
INFOID:0000000005513973
DTC DETECTION LOGIC
DTC CONFIRMATION PROCEDURE
CAUTION:
Always drive vehicle at a safe speed.
NOTE:
Immediately after performing any “DTC CONFIRMATION PROCEDURE”, always turn ignition switch OFF.
Then wait at least 10 seconds before performing the next test.
1.
CHECK DTC DETECTION
With CONSULT-III
1.
Turn ignition switch ON.
2.
Select “Data Monitor” in “TRANSMISSION”.
3.
Start engine.
4.
Drive vehicle and maintain the following conditions for at least 2 consecutive seconds.
With GST
Follow the procedure “With CONSULT-III”.
Is “P0705” detected?
YES
>> Go to
NO
>> Check intermittent incident. Refer to
GI-39, "Intermittent Incident"
.
Diagnosis Procedure
INFOID:0000000005513974
1.
CHECK CVT POSITION
1.
Disconnect CVT unit connector.
2.
Remove control cable from manual lever. Refer to
.
3.
Check transmission range switch. Refer to
Is the inspection result normal?
Shift position
Transmission range
switch 1
Transmission range
switch 2
Transmission range
switch 3
Transmission range
switch 4
Transmission range
switch 3 (monitor)
P
OFF
OFF
OFF
OFF
OFF
R
ON
OFF
OFF
ON
OFF
N
ON
ON
OFF
OFF
OFF
D
ON
ON
ON
ON
ON
L
OFF
ON
ON
OFF
ON
DTC
Trouble diagnosis name
DTC is detected if...
Possible cause
P0705
Transmission Range Sensor
A Circuit (PRNDL Input)
TCM does not receive the correct voltage
signal (based on the gear position) from the
switch.
• Harness or connectors
(Transmission range switches circuit is
open or shorted.)
• Transmission range switch
VEHICLE SPEED
: More than 10 km/h (6 MPH)
ENG SPEED SIG
: More than 450 rpm
ACC PEDAL OPEN
: More than 1.0/8
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