Nissan Maxima. Instruction — part 893
PCS-52
< DTC/CIRCUIT DIAGNOSIS >
[POWER DISTRIBUTION SYSTEM]
B2614 ACC RELAY CIRCUIT
3. Check the continuity between accessory relay-1 terminals under
the following conditions.
Is the inspection result normal?
YES
>> Inspection End.
NO
>> Replace accessory relay-1.
Terminals
Condition
Continuity
3 and 5
12V direct current supply between terminals 1 and 2
Yes
No current supply
No
PBIB0098E
PCS
B2615 FRONT BLOWER MOTOR RELAY CIRCUIT
PCS-53
< DTC/CIRCUIT DIAGNOSIS >
[POWER DISTRIBUTION SYSTEM]
C
D
E
F
G
H
I
J
K
L
B
A
O
P
N
B2615 FRONT BLOWER MOTOR RELAY CIRCUIT
Description
INFOID:0000000010049433
BCM controls the various electrical components and simultaneously supplies power according to the power
supply position.
BCM checks the power supply position internally.
DTC Logic
INFOID:0000000010049434
DTC DETECTION LOGIC
DTC CONFIRMATION PROCEDURE
1.
PERFORM DTC CONFIRMATION PROCEDURE
1. Turn ignition switch ON under the following conditions, and wait for at least 1 second.
-
CVT selector lever is in the P or N position.
-
Release brake pedal.
2. Check “Self diagnostic result” with CONSULT.
Is DTC detected?
YES
>> Go to
NO
>> Inspection End.
Diagnosis Procedure
INFOID:0000000010049435
Regarding Wiring Diagram information, refer to
1.
CHECK FRONT BLOWER MOTOR RELAY POWER SUPPLY
1. Turn ignition switch OFF.
2. Disconnect front blower motor relay.
3. Check voltage between front blower motor relay harness con-
nector and ground under the following conditions.
Is the inspection result normal?
YES
>> GO TO 3
NO
>> GO TO 2
2.
CHECK FRONT BLOWER MOTOR RELAY POWER SUPPLY CIRCUIT
1. Turn ignition switch OFF.
2. Disconnect BCM harness connector.
3. Check continuity between front blower motor relay harness connector and BCM harness connector.
DTC No.
Trouble diagnosis
name
DTC detecting condition
Possible cause
B2615
Front blower motor
relay circuit
BCM detects a difference of signal for 1 second or
more between the following information.
• Front blower motor relay ON/OFF request
• Front blower motor relay feedback
• Harness or connectors
(Front blower motor relay circuit is
open or shorted)
• Front blower motor relay
Front blower
motor relay
Ground
Condition
Voltage (V)
Terminal
2
Ground
OFF or ACC
0
ON
Battery voltage
ALMIA0450ZZ
PCS-54
< DTC/CIRCUIT DIAGNOSIS >
[POWER DISTRIBUTION SYSTEM]
B2615 FRONT BLOWER MOTOR RELAY CIRCUIT
4. Check continuity between front blower motor relay harness connector and ground.
Is the inspection result normal?
YES
>> GO TO 6
NO
>> Repair or replace harness.
3.
CHECK FRONT BLOWER MOTOR RELAY GROUND CIRCUIT
1. Turn ignition switch OFF.
2. Check continuity between front blower motor relay harness con-
nector and ground.
Is the inspection result normal?
YES
>> GO TO 4
NO
>> Repair front blower motor relay ground circuit.
4.
CHECK FRONT BLOWER MOTOR RELAY POWER SUPPLY CIRCUIT-2
Check voltage between front blower motor relay harness connector
and ground.
Is the inspection result normal?
YES
>> GO TO 5
NO
>> Repair or replace harness.
5.
CHECK FRONT BLOWER MOTOR RELAY
PCS-54, "Component Inspection (Front Blower Motor Relay)"
.
Is the inspection result normal?
YES
>> GO TO 6
NO
>> Replace front blower motor relay.
6.
CHECK INTERMITTENT INCIDENT
GI-41, "Intermittent Incident"
>> Inspection End.
Component Inspection (Front Blower Motor Relay)
INFOID:0000000010049436
1.
CHECK FRONT BLOWER MOTOR RELAY
1. Turn ignition switch OFF.
2. Remove front blower motor relay.
Front blower motor relay
BCM
Continuity
Terminal
Connector
Terminal
2
M19
90
Yes
Front blower motor relay
Ground
Continuity
Terminal
2
Ground
No
Front blower motor relay
Ground
Continuity
Terminal
1
Ground
Yes
ALMIA0445ZZ
Front blower motor relay
Ground
Voltage (V)
Terminal
3
Ground
Battery voltage
ALMIA0441ZZ
PCS
B2615 FRONT BLOWER MOTOR RELAY CIRCUIT
PCS-55
< DTC/CIRCUIT DIAGNOSIS >
[POWER DISTRIBUTION SYSTEM]
C
D
E
F
G
H
I
J
K
L
B
A
O
P
N
3. Check the continuity between front blower motor relay terminals
under the following conditions.
Is the inspection result normal?
YES
>> Inspection End.
NO
>> Replace front blower motor relay.
Terminals
Condition
Continuity
3 and 5
12V direct current supply between terminals 1 and 2
Yes
No current supply
No
PBIB0098E
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