Nissan Cube. Manual — part 68
BCS
U1010 CONTROL UNIT (CAN)
BCS-121
< DTC/CIRCUIT DIAGNOSIS >
[WITHOUT INTELLIGENT KEY SYSTEM]
C
D
E
F
G
H
I
J
K
L
B
A
O
P
N
U1010 CONTROL UNIT (CAN)
DTC Logic
INFOID:0000000009949788
DTC DETECTION LOGIC
Diagnosis Procedure
INFOID:0000000009949789
1.
REPLACE BCM
When DTC “U1010” is detected, replace BCM.
>> Replace BCM. Refer to
BCS-155, "Removal and Installation"
.
DTC
CONSULT display de-
scription
DTC Detection Condition
Possible cause
U1010
CONTROL UNIT (CAN)
BCM detected internal CAN communication circuit malfunction.
BCM
BCS-122
< DTC/CIRCUIT DIAGNOSIS >
[WITHOUT INTELLIGENT KEY SYSTEM]
C1735 IGN CIRCUIT OPEN
C1735 IGN CIRCUIT OPEN
DTC Logic
INFOID:0000000009949790
DTC DETECTION LOGIC
NOTE:
BCM may detect that ignition switch is OFF when IGN power supply voltage is low.
DTC CONFIRMATION PROCEDURE
1.
DTC CONFIRMATION
1.
Erase DTC.
2.
Turn the ignition switch OFF.
3.
Perform the “Self Diagnostic Result” of CONSULT, when passed 2 seconds or more after the ignition
switch is turned ON.
Is any DTC detected?
YES
>> Refer to
BCS-122, "Diagnosis Procedure"
NO
>> INSPECTION END
Diagnosis Procedure
INFOID:0000000009949791
1.
CHECK BCM IGNITION POWER SUPPLY CIRCUIT
Check BCM ignition power supply circuit. Refer to
BCS-123, "Diagnosis Procedure"
Is the circuit normal?
YES
>> GO TO 2.
NO
>> Repair the malfunctioning part.
2.
CHECK IPDM E/R POWER SUPPLY CIRCUIT
Check IPDM E/R power supply circuit. Refer to
Is the circuit normal?
YES
>> GO TO 3.
NO
>> Repair the malfunctioning part.
3.
CHECK IPDM E/R IGNITION RELAY STATUS
CONSULT DATA MONITOR
1.
Select “IGN RLY” of IPDM E/R data monitor item.
2.
With operating the ignition switch, check the monitor status.
Is the item status normal?
YES
>> Replace BCM. Refer to
BCS-155, "Removal and Installation"
.
NO
>> Replace IPDM E/R. Refer to
PCS-64, "Removal and Installation"
DTC
CONSULT display de-
scription
DTC Detection Condition
Possible cause
C1735
IGN CIRCUIT OPEN
Detected following signals are different for 2 seconds;
• Ignition switch ON signal inputted from ignition switch
• Ignition relay status signal received from IPDM E/R
with CAN communication
• Harness or connector (Ignition power
supply circuit)
• BCM
• IPDM E/R
Monitor item
Condition
Monitor status
IGN RLY
Ignition switch
OFF
Off
ON
On
BCS
POWER SUPPLY AND GROUND CIRCUIT
BCS-123
< DTC/CIRCUIT DIAGNOSIS >
[WITHOUT INTELLIGENT KEY SYSTEM]
C
D
E
F
G
H
I
J
K
L
B
A
O
P
N
POWER SUPPLY AND GROUND CIRCUIT
Diagnosis Procedure
INFOID:0000000009949792
1.
CHECK FUSES AND FUSIBLE LINK
Check that the following fuses and fusible link are not fusing.
Is the fuse fusing?
YES
>> Replace the blown fuse or fusible link after repairing the affected circuit if a fuse or fusible link is
blown.
NO
>> GO TO 2.
2.
CHECK POWER SUPPLY CIRCUIT
1.
Turn ignition switch OFF.
2.
Disconnect BCM connectors.
3.
Check voltage between BCM harness connector and ground.
Is the measurement value normal?
YES
>> GO TO 3.
NO
>> Repair harness or connector.
3.
CHECK GROUND CIRCUIT
Check continuity between BCM harness connector and ground.
Does continuity exist?
YES
>> INSPECTION END
NO
>> Repair harness or connector.
Signal name
Fuses and fusible link No.
Battery power supply
8
G
ACC power supply
20
Ignition power supply
2
Terminals
Ignition switch position
(+)
(
−
)
BCM
OFF
ACC
ON
Connector
Terminal
M67
70
Ground
Battery
voltage
Battery
voltage
Battery
voltage
57
M65
11
Approx.
0 V
Battery
voltage
Battery
voltage
38
Approx.
0 V
Approx.
0 V
Battery
voltage
BCM
Ground
Continuity
Connector
Terminal
M67
67
Existed
BCS-124
< DTC/CIRCUIT DIAGNOSIS >
[WITHOUT INTELLIGENT KEY SYSTEM]
COMBINATION SWITCH OUTPUT CIRCUIT
COMBINATION SWITCH OUTPUT CIRCUIT
Diagnosis Procedure
INFOID:0000000009949793
1.
CHECK OUTPUT 1 - 5 CIRCUIT FOR OPEN
1.
Turn ignition switch OFF.
2.
Disconnect BCM and combination switch connectors.
3.
Check continuity between BCM harness connector and combination switch harness connector.
Does continuity exist?
YES
>> GO TO 2.
NO
>> Repair harnesses or connectors.
2.
CHECK OUTPUT 1 - 5 CIRCUIT FOR SHORT
Check for continuity between BCM harness connector and ground.
Does continuity exist?
YES
>> Repair harnesses or connectors.
NO
>> GO TO 3.
3.
CHECK BCM OUTPUT VOLTAGE
1.
Connect BCM connector.
2.
Check voltage between BCM harness connector and ground.
Is the measurement value normal?
System
BCM
Combination switch
Continuity
Connector
Terminal
Connector
Terminal
OUTPUT 1
M65
36
M27
11
Existed
OUTPUT 2
35
9
OUTPUT 3
34
7
OUTPUT 4
33
10
OUTPUT 5
32
13
System
BCM
Ground
Continuity
Connector
Terminal
OUTPUT 1
M65
36
Not existed
OUTPUT 2
35
OUTPUT 3
34
OUTPUT 4
33
OUTPUT 5
32
System
Terminals
Voltage
(Approx.)
(+)
(
−
)
BCM
Ground
Connector
Terminal
OUTPUT 1
M65
36
7.0 - 8.0 V
OUTPUT 2
35
OUTPUT 3
34
OUTPUT 4
33
OUTPUT 5
32
PKIB4960J
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