Nissan Sentra. Instruction — part 124
BCS-66
< DTC/CIRCUIT DIAGNOSIS >
[WITH INTELLIGENT KEY SYSTEM]
B2562 LOW VOLTAGE
B2562 LOW VOLTAGE
DTC Logic
INFOID:0000000009757342
DTC DETECTION LOGIC
DTC CONFIRMATION PROCEDURE
1.
DTC CONFIRMATION
1. Erase DTC.
2. Turn ignition switch OFF.
3. Perform the Self Diagnostic Result of BCM with CONSULT, after the ignition switch has been turned ON
for 120 seconds or more.
Is any DTC detected?
YES
>> Refer to
.
NO
>> Inspection End.
Diagnosis Procedure
INFOID:0000000009757343
1.
CHECK BATTERY VOLTAGE
Check battery voltage.
Is battery voltage less than 8.8V?
YES
>> Charge battery and retest. Refer to
CHG-14, "Work Flow (With EXP-800 NI or GR8-1200 NI)"
CHG-17, "Work Flow (Without EXP-800 NI or GR8-1200 NI)"
.
NO
>> GO TO 2.
2.
CHECK POWER SUPPLY AND GROUND CIRCUIT
Check BCM power supply and ground circuit. Refer to
Is the inspection result normal?
YES
>> GO TO 3.
NO
>> Repair or replace harness or connectors.
3.
BCM SELF DIAGNOSTIC RESULT
Perform Self Diagnostic Result of BCM with CONSULT. Refer to
BCS-24, "BCM : CONSULT Function (BCM -
Is DTC B2562 CRNT?
YES
>> Replace BCM. Refer to
BCS-73, "Removal and Installation"
NO
>> Refer to
GI-39, "Intermittent Incident"
.
CONSULT Display
DTC Detection Condition
Possible Cause
LOW VOLTAGE
[B2562]
When the power supply voltage to BCM remains
less than 8.8 V for 120 seconds or more
• Harness or connector (power supply circuit)
• Vehicle battery
BCS
POWER SUPPLY AND GROUND CIRCUIT
BCS-67
< DTC/CIRCUIT DIAGNOSIS >
[WITH 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:0000000009757344
Regarding Wiring Diagram information, refer to
.
1.
CHECK FUSES AND FUSIBLE LINK
Check that the following fuses and fusible link are not blown.
Is the fuse 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 M85.
2. Check voltage between BCM connector M85 and ground.
Is the inspection result normal?
YES
>> GO TO 3.
NO
>> Repair harness or connector.
3.
CHECK GROUND CIRCUIT
Check continuity between BCM connector M85 and ground.
Is the inspection result normal?
YES
>> Inspection End.
NO
>> Repair harness or connector.
Terminal No.
Signal name
Fuses and fusible link No.
88
Battery power supply
12 (10A)
90
G (40A)
BCM
Ground
Voltage
Connector
Terminal
M85
88
—
Battery voltage
90
BCM
Ground
Continuity
Connector
Terminal
M85
93
—
Yes
BCS-68
< DTC/CIRCUIT DIAGNOSIS >
[WITH INTELLIGENT KEY SYSTEM]
COMBINATION SWITCH INPUT CIRCUIT
COMBINATION SWITCH INPUT CIRCUIT
Diagnosis Procedure
INFOID:0000000009757345
Regarding Wiring Diagram information, refer to
.
1.
CHECK INPUT 1 - 5 CIRCUIT FOR OPEN
1. Turn ignition switch OFF.
2. Disconnect BCM and combination switch connectors.
3. Check continuity between BCM connector and combination switch connector.
Is the inspection result normal?
YES
>> GO TO 2.
NO
>> Repair harness or connectors.
2.
CHECK INPUT 1 - 5 CIRCUIT FOR SHORT
Check for continuity between BCM connector and ground.
Is the inspection result normal?
YES
>> Repair harness or connectors.
NO
>> GO TO 3.
3.
CHECK BCM OUTPUT VOLTAGE
1. Connect BCM connector.
2. Check voltage between BCM connector and ground.
Combination switch
signal
BCM
Combination switch
Continuity
Connector
Terminal
Connector
Terminal
INPUT 1
M84
36
M28
11
Yes
INPUT 2
35
9
INPUT 3
34
7
INPUT 4
33
10
INPUT 5
32
13
Combination switch
signal
BCM
Ground
Continuity
Connector
Terminal
INPUT 1
M84
36
No
INPUT 2
35
INPUT 3
34
INPUT 4
33
INPUT 5
32
BCS
COMBINATION SWITCH INPUT CIRCUIT
BCS-69
< DTC/CIRCUIT DIAGNOSIS >
[WITH INTELLIGENT KEY SYSTEM]
C
D
E
F
G
H
I
J
K
L
B
A
O
P
N
Is the inspection result normal?
YES
>> Replace combination switch.
NO
>> Replace BCM. Refer to
BCS-73, "Removal and Installation"
BCM signal
Terminals
Voltage
(+)
(
−)
BCM
Ground
Connector
Terminal
OUTPUT 1
M84
36
Refer to
OUTPUT 2
35
OUTPUT 3
34
OUTPUT 4
33
OUTPUT 5
32
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