Nissan Cube. Manual — part 158
DIAGNOSIS SYSTEM (IPDM E/R)
DEF-19
< SYSTEM DESCRIPTION >
C
D
E
F
G
H
I
J
K
M
A
B
DEF
N
O
P
EXTERNAL LAMPS
Off
OFF
TAIL
Operates the tail lamp relay.
Lo
Operates the headlamp low relay.
Hi
Operates the headlamp low relay and ON/OFF the headlamp high relay at 1 sec-
ond intervals.
Fog
Operates the front fog lamp relay.
Test item
Operation
Description
DEF-20
< DTC/CIRCUIT DIAGNOSIS >
REAR WINDOW DEFOGGER SWITCH
DTC/CIRCUIT DIAGNOSIS
REAR WINDOW DEFOGGER SWITCH
WITH AUTO A/C
WITH AUTO A/C : Component Function Check
INFOID:0000000009945433
1.
CHECK FUNCTION
1.
Check (“REAR DEF SW”) in BCM - REAR DEFOGGER “DATA MONITOR” mode by using CONSULT.
2.
Operate rear window defogger switch and check the status on CONSULT screen.
Is the inspection result normal?
YES
>> Rear window defogger switch function is OK.
NO
>> Refer to
DEF-20, "WITH AUTO A/C : Diagnosis Procedure"
WITH AUTO A/C : Diagnosis Procedure
INFOID:0000000009945434
1.
CHECK AUTO A/C
Check the operating condition of auto A/C
Does auto A/C operate normally?
YES
>> GO TO 2.
NO
>> Perform auto A/C diagnosis. Refer to
HAC-114, "Diagnosis Chart By Symptom"
2.
CHECK BCM OUTPUT SIGNAL
1.
Turn ignition switch OFF.
2.
Disconnect A/C auto amp. connector.
3.
Check signal between A/C auto amp. harness connector and ground using oscilloscope.
Is the inspection result normal?
YES
>> GO TO 4.
NO
>> GO TO 3.
3.
CHECK REAR WINDOW DEFOGGER SWITCH CIRCUIT
1.
Disconnect BCM connector.
2.
Check continuity between BCM harness connector and A/C auto amp. harness connector.
3.
Check continuity between BCM harness connector and ground.
Monitor Item
Condition
status
REAR DEF SW
rear window defogger switch
Pressed
On
Released
Off
(+)
(–)
Voltage (V)
(Approx.)
A/C auto amp.
Connector
Terminal
M51
33
Ground
JPMIA0012GB
BCM
A/C auto amp.
Continuity
Connector
Terminal
Connector
Terminal
M68
15
M51
33
Existed
REAR WINDOW DEFOGGER SWITCH
DEF-21
< DTC/CIRCUIT DIAGNOSIS >
C
D
E
F
G
H
I
J
K
M
A
B
DEF
N
O
P
Is the inspection result normal?
YES
>> Replace BCM. Refer to
BCS-88, "Removal and Installation"
NO
>> Repair or replace harness.
4.
CHECK REAR WINDOW DEFOGGER SWITCH
DEF-21, "WITH AUTO A/C : Component Inspection"
Is the inspection result normal?
YES
>> GO TO 5.
NO
>> Replace A/C auto amp. Refer to
HAC-122, "Removal and Installation"
.
5.
CHECK INTERMITTENT INCIDENT
GI-40, "Intermittent Incident"
.
Is the inspection result normal?
>> INSPECTION END
WITH AUTO A/C : Component Inspection
INFOID:0000000009945435
1.
CHECK REAR WINDOW DEFOGGER SWITCH
1.
Turn ignition switch OFF.
2.
Disconnect A/C auto amp. connector.
3.
Check continuity between A/C auto amp. terminals.
Is the inspection result normal?
YES
>> INSPECTION END
NO
>> Replace A/C auto amp. Refer to
HAC-122, "Removal and Installation"
.
WITH MANUAL A/C
WITH MANUAL A/C : Component Function Check
INFOID:0000000009945436
1.
CHECK FUNCTION
1.
Check (“REAR DEF SW”) in BCM - REAR DEFOGGER “DATA MONITOR” mode by using CONSULT.
2.
Operate rear window defogger switch and check the status on CONSULT screen.
Is the inspection result normal?
YES
>> Rear window defogger switch function is OK.
NO
>> Refer to
DEF-21, "WITH MANUAL A/C : Diagnosis Procedure"
WITH MANUAL A/C : Diagnosis Procedure
INFOID:0000000009945437
1.
CHECK MANUAL A/C
Check the operating condition of manual A/C
Does manual A/C operate normally?
BCM
Ground
Continuity
Connector
Terminal
M68
15
Not existed
A/C auto amp.
Condition
Continuity
Terminal
16
33
Rear window defogger switch
Pressed
Existed
Released
Not existed
Monitor Item
Condition
status
REAR DEF SW
rear window defogger switch
Pressed
On
Released
Off
DEF-22
< DTC/CIRCUIT DIAGNOSIS >
REAR WINDOW DEFOGGER SWITCH
YES
>> GO TO 2.
NO
>> Perform manual A/C diagnosis. Refer to
HAC-196, "Diagnosis Chart By Symptom"
2.
CHECK BCM OUTPUT SIGNAL
1.
Turn ignition switch OFF.
2.
Disconnect A/C control connector.
3.
Check voltage between A/C control harness connector and ground.
With Intelligent Key System
Without Intelligent Key System
Is the inspection result normal?
YES
>> GO TO 4.
NO
>> GO TO 3.
3.
CHECK REAR WINDOW DEFOGGER SWITCH CIRCUIT
1.
Disconnect BCM connector.
2.
Check continuity between BCM harness connector and A/C control harness connector.
With Intelligent Key System
Without Intelligent Key System
3.
Check continuity between BCM harness connector and ground.
With Intelligent Key System
Without Intelligent Key System
Is the inspection result normal?
YES
>> Replace BCM. Refer to
BCS-88, "Removal and Installation"
(with Intelligent Key System) or
155, "Removal and Installation"
(without Intelligent Key System).
NO
>> Repair or replace harness.
(+)
(–)
Voltage (V)
(Approx.)
A/C control
Connector
Terminal
M53
5
Ground
(+)
(–)
Voltage (V)
(Approx.)
A/C control
Connector
Terminal
M53
5
Ground
Battery voltage
JPMIA0012GB
BCM
A/C control
Continuity
Connector
Terminal
Connector
Terminal
M68
15
M53
5
Existed
BCM
A/C control
Continuity
Connector
Terminal
Connector
Terminal
M65
10
M53
5
Existed
BCM
Ground
Continuity
Connector
Terminal
M68
15
Not existed
BCM
Ground
Continuity
Connector
Terminal
M65
10
Not existed
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