Nissan Leaf. Instruction — part 1079
SEC-78
< DTC/CIRCUIT DIAGNOSIS >
[WITH INTELLIGENT KEY SYSTEM]
B2555 STOP LAMP
B2555 STOP LAMP
DTC Logic
INFOID:0000000010119264
DTC DETECTION LOGIC
DTC CONFIRMATION PROCEDURE
1.
PERFORM DTC CONFIRMATION PROCEDURE
1. Depress brake pedal and wait 1 second or more.
2. Check DTC in “Self Diagnostic Result” of “BCM” using CONSULT.
Is DTC detected?
YES
>> Go to
NO
>> Inspection End.
Diagnosis Procedure
INFOID:0000000010119265
Regarding Wiring Diagram information, refer to
.
1.
CHECK STOP LAMP SWITCH INPUT SIGNAL 1
1. Turn power switch OFF.
2. Disconnect BCM connector.
3. Check voltage between BCM harness connector and ground.
Is the inspection normal?
YES
>> GO TO 2.
NO-1 >> Check 10 A fuse [No. 38, located in the fuse block (J/B)].
NO-2 >> Check harness for open or short between BCM and fuse.
2.
CHECK STOP LAMP SWITCH POWER SUPPLY CIRCUIT
1. Disconnect stop lamp switch connector.
2. Check voltage between stop lamp switch harness connector and ground.
Is the inspection result normal?
YES
>> GO TO 3.
NO
>> Check harness for open or short between stop lamp switch and fuse.
3.
CHECK STOP LAMP SWITCH INPUT SIGNAL 2
DTC No.
Trouble diagnosis name
DTC detecting condition
Possible cause
B2555
STOP LAMP CIRCUIT
BCM makes a comparison between the
upper voltage and the lower voltage of stop
lamp switch. It judges from their values to
detect the malfunctioning circuit.
• Harness or connectors
(Stop lamp switch circuit is open or
shorted.)
• Stop lamp switch
• Fuse
• BCM
(+)
(–)
Voltage (V)
(Approx.)
BCM
Connector
Terminal
M23
105
Ground
Battery voltage
(+)
(–)
Voltage (V)
(Approx.)
Stop lamp switch
Connector
Terminal
E102
1
Ground
Battery voltage
B2555 STOP LAMP
SEC-79
< DTC/CIRCUIT DIAGNOSIS >
[WITH INTELLIGENT KEY SYSTEM]
C
D
E
F
G
H
I
J
L
M
A
B
SEC
N
O
P
1. Connect stop lamp switch connector.
2. Check voltage between BCM harness connector and ground.
Is the inspecting result normal?
YES
>> GO TO 4.
NO
>> GO TO 5.
4.
REPLACE BCM
1. Replace BCM. Refer to
BCS-72, "Removal and Installation"
.
2. Perform initialization of BCM and registration of all Intelligent Keys using CONSULT. Refer to the CON-
SULT Immobilizer mode and follow the on screen instructions.
>> Inspection End.
5.
CHECK STOP LAMP SWITCH CIRCUIT
1. Disconnect stop lamp switch connector.
2. Check continuity between stop lamp switch harness connector and BCM harness connector.
3. Check continuity between stop lamp switch harness connector and ground.
Is the inspection result normal?
YES
>> GO TO 6.
NO
>> Repair or replace harness.
6.
CHECK STOP LAMP SWITCH
SEC-79, "Component Inspection"
.
Is the inspection result normal?
YES
>> GO TO 7.
NO
>> Replace stop lamp switch. Refer to
BR-500, "Removal and Installation"
.
7.
CHECK INTERMITTENT INCIDENT
GI-53, "Intermittent Incident"
.
>> Inspection End.
Component Inspection
INFOID:0000000010119266
1.
CHECK STOP LAMP SWITCH
1. Turn power switch OFF.
2. Disconnect stop lamp switch connector.
3. Check continuity between stop lamp switch terminals.
(+)
(–)
Condition
Voltage (V)
(Approx.)
BCM
Connector
Terminal
M24
9
Ground
Brake pedal
Depressed
Battery voltage
Not depressed
0
Stop lamp switch
BCM
Continuity
Connector
Terminal
Connector
Terminal
E102
2
M24
9
Yes
Stop lamp switch
Ground
Continuity
Connector
Terminal
E102
2
No
SEC-80
< DTC/CIRCUIT DIAGNOSIS >
[WITH INTELLIGENT KEY SYSTEM]
B2555 STOP LAMP
Is the inspection result normal?
YES
>> Inspection End.
NO
>> Replace stop lamp switch. Refer to
BR-500, "Removal and Installation"
.
Stop lamp switch
Condition
Continuity
Terminal
1
2
Brake pedal
Not depressed
No
Depressed
Yes
B2556 POWER SWITCH
SEC-81
< DTC/CIRCUIT DIAGNOSIS >
[WITH INTELLIGENT KEY SYSTEM]
C
D
E
F
G
H
I
J
L
M
A
B
SEC
N
O
P
B2556 POWER SWITCH
DTC Logic
INFOID:0000000010119267
DTC DETECTION LOGIC
*: “ENG START SW” is indicated on CONSULT screen, however this means power switch on this vehicle.
DTC CONFIRMATION PROCEDURE
1.
PERFORM DTC CONFIRMATION PROCEDURE
1. Press power switch under the following condition.
-
Brake pedal: Not depressed
2. Release power switch and wait 100 seconds or more.
3. Check DTC in “Self Diagnostic Result” of “BCM” using CONSULT.
Is DTC detected?
YES
>> Go to
NO
>> Inspection End.
Diagnosis Procedure
INFOID:0000000010119268
Regarding Wiring Diagram information, refer to
.
1.
CHECK POWER SWITCH INPUT SIGNAL
1. Turn power switch OFF.
2. Disconnect power switch connector.
3. Check voltage between power switch harness connector and ground.
Is the inspection result normal?
YES
>> GO TO 4.
NO
>> GO TO 2.
2.
CHECK POWER SWITCH CIRCUIT
1. Disconnect BCM connector and IPDM E/R connector.
2. Check continuity between power switch harness connector and BCM harness connector.
3. Check continuity between power switch harness connector and ground.
DTC No.
Trouble diagnosis name
DTC detecting condition
Possible cause
B2556
ENG START SW*
BCM detects the power switch stuck at ON
for 100 seconds or more.
• Harness or connectors
(Power switch circuit is shorted.)
• Power switch
• BCM
(+)
(–)
Voltage (V)
(Approx.)
Power switch
Connector
Terminal
M33
8
Ground
Battery voltage
Power switch
BCM
Continuity
Connector
Terminal
Connector
Terminal
M33
8
M23
76
Yes
Power switch
Ground
Continuity
Connector
Terminal
M33
8
No
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