Nissan Versa Sedan. Instruction — part 623
PCS-78
< DTC/CIRCUIT DIAGNOSIS >
[POWER DISTRIBUTION SYSTEM]
U1010 CONTROL UNIT (CAN)
U1010 CONTROL UNIT (CAN)
DTC Logic
INFOID:0000000009266467
DTC DETECTION LOGIC
Diagnosis Procedure
INFOID:0000000009266468
1.
REPLACE BCM
When DTC “U1010” is detected, replace BCM.
>> Replace BCM. Refer to
BCS-69, "Removal and Installation"
CONSULT Display
DTC Detection Condition
Possible Cause
CONTROL UNIT (CAN)
[U1010]
BCM detected internal CAN communication cir-
cuit malfunction.
BCM
PCS
B2614 ACC RELAY CIRCUIT
PCS-79
< DTC/CIRCUIT DIAGNOSIS >
[POWER DISTRIBUTION SYSTEM]
C
D
E
F
G
H
I
J
K
L
B
A
O
P
N
B2614 ACC RELAY CIRCUIT
DTC Logic
INFOID:0000000009266469
DTC DETECTION LOGIC
DTC CONFIRMATION PROCEDURE
1.
PERFORM DTC CONFIRMATION PROCEDURE
1. Turn ignition switch to ACC, and wait for 1 second or more.
2. Check “Self-diagnosis result” of BCM with CONSULT.
Is DTC detected?
YES
>> Go to
NO
>> Inspection End.
Diagnosis Procedure
INFOID:0000000009266470
Regarding Wiring Diagram information, refer to
.
1.
CHECK ACCESSORY RELAY CONTROL SIGNAL
Check voltage between BCM harness connector and ground.
Is the inspection result normal?
YES
>> Replace BCM. Refer to
BCS-69, "Removal and Installation"
NO
>> GO TO 2.
2.
CHECK ACCESSORY RELAY CONTROL SIGNAL CIRCUIT
1. Turn ignition switch OFF.
2. Disconnect BCM connector and accessory relay.
3. Check continuity between BCM harness connector and accessory relay harness connector.
4. Check continuity between BCM harness connector and ground.
Is the inspection result normal?
YES
>> GO TO 3.
NO
>> Repair or replace harness.
CONSULT Display
DTC detecting condition
Possible cause
ACC RELAY CIRCUIT
[B2614]
An immediate operation of accessory relay is request-
ed by BCM, but there is no response for more than 1
second.
• Harness or connectors
• Accessory relay
• BCM
(+)
(–)
Condition
Voltage (V)
(Approx.)
BCM
Connector
Terminal
M98
96
Ground
Ignition switch
OFF
0
ACC or ON
Battery voltage
BCM
Accessory relay
Continuity
Connector
Terminal
Terminal
M98
96
Coil upstream side
Yes
BCM
Ground
Continuity
Connector
Terminal
M98
96
No
PCS-80
< DTC/CIRCUIT DIAGNOSIS >
[POWER DISTRIBUTION SYSTEM]
B2614 ACC RELAY CIRCUIT
3.
CHECK ACCESSORY RELAY
PCS-80, "Component Inspection"
.
Is the inspection result normal?
YES
>> Replace BCM. Refer to
BCS-69, "Removal and Installation"
NO
>> Replace accessory relay.
Component Inspection
INFOID:0000000009266471
1.
CHECK ACCESSORY RELAY
1. Turn ignition switch OFF.
2. Remove accessory relay.
3. Check the continuity between accessory relay terminals.
Is the inspection result normal?
YES
>> Inspection End.
NO
>> Replace accessory relay
Terminals
Condition
Continuity
3 and 5
12 V direct current supply between terminals 1 and 2
Yes
No current supply
No
PBIB0098E
PCS
B2615 BLOWER RELAY CIRCUIT
PCS-81
< DTC/CIRCUIT DIAGNOSIS >
[POWER DISTRIBUTION SYSTEM]
C
D
E
F
G
H
I
J
K
L
B
A
O
P
N
B2615 BLOWER RELAY CIRCUIT
DTC Logic
INFOID:0000000009266472
DTC DETECTION LOGIC
DTC CONFIRMATION PROCEDURE
1.
PERFORM DTC CONFIRMATION PROCEDURE
1. Turn ignition switch ON, and wait for 1 second or more.
2. Check “Self-diagnosis result” with CONSULT.
Is DTC detected?
YES
>> Go to
NO
>> Inspection End.
Diagnosis Procedure
INFOID:0000000009266473
Regarding Wiring Diagram information, refer to
.
1.
CHECK BLOWER MOTOR RELAY POWER SUPPLY CIRCUIT
1. Turn ignition switch OFF.
2. Disconnect blower motor relay.
3. Disconnect BCM connector M19.
4. Check continuity between blower motor relay connector J-1 terminal 2 and BCM connector M98 terminal
106.
5. Check continuity between Blower motor relay connector J-1 terminal 2 and ground.
Is the inspection result normal?
YES
>> GO TO 2.
NO
>> Repair or replace harness or connectors.
2.
CHECK BLOWER MOTOR RELAY GROUND CIRCUIT
1. Check continuity between Blower motor relay connector J-1 terminal 1 and ground.
Is the inspection result normal?
YES
>> GO TO 3.
CONSULT Display
DTC Detection Condition
Possible Cause
BLOWER RELAY CIRCUIT
[B2615]
An immediate operation of front blower motor relay
is requested by BCM, but there is no response for
more than 1 second.
• Harness or connectors.
• Front blower motor relay.
• Fuse block J/B.
• BCM.
Blower motor relay
BCM
Continuity
Connector
Terminal
Connector
Terminal
J-1
2
M98
106
Yes
Blower motor relay
Ground
Continuity
Connector
Terminal
J-1
2
—
No
Front blower motor relay
Ground
Continuity
Connector
Terminal
J-1
1
—
Yes
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