Nissan Versa Note. Instruction — part 174
DIAGNOSIS AND REPAIR WORK FLOW
DEF-19
< BASIC INSPECTION >
C
D
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F
G
H
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K
M
A
B
DEF
N
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P
8.
DETECT MALFUNCTIONING PART BY DIAGNOSTIC PROCEDURE
Inspect according to Diagnostic Procedure of the system.
NOTE:
The Diagnostic Procedure described based on open circuit inspection. A short circuit inspection is also
required for the circuit check in the Diagnostic Procedure.
Is malfunctioning part detected?
YES
>> GO TO 9.
NO
>> Check voltage of related BCM terminals using CONSULT.
9.
REPAIR OR REPLACE THE MALFUNCTIONING PART
1. Repair or replace the malfunctioning part.
2. Reconnect parts or connectors disconnected during Diagnostic Procedure again after repair and replace-
ment.
3. Check DTC. If DTC is displayed, erase it.
>> GO TO 10.
10.
FINAL CHECK
When DTC was detected in step 2, perform DTC Confirmation Procedure or Component Function Check
again, and then check that the malfunction have been repaired securely.
When symptom was described from the customer, refer to confirmed symptom in step 3 or 4, and check that
the symptom is not detected.
Does the symptom reappear?
YES (DTC is detected)>>GO TO 8.
YES (Symptom remains)>>GO TO 6.
NO
>> Inspection End.
DEF-20
< DTC/CIRCUIT DIAGNOSIS >
REAR WINDOW DEFOGGER SWITCH
DTC/CIRCUIT DIAGNOSIS
REAR WINDOW DEFOGGER SWITCH
Description
INFOID:0000000009541089
• The rear window defogger is operated by pressing the rear window defogger switch ON.
• The indicator lamp in the rear window defogger switch illuminates while the rear window defogger is ON.
Component Function Check
INFOID:0000000009541090
1.
CHECK REAR WINDOW DEFOGGER SWITCH FUNCTION
1. Turn ignition switch ON.
2. Check that the indicator lamp of rear window defogger illuminates with rear window defogger switch ON.
Is the inspection result normal?
YES
>> GO TO 2.
NO
>> Refer to
.
2.
CHECK REAR DEFOGGER ON STATUS
1. Using CONSULT, select "BCM (REAR DEFOGGER)", then "DATA MONITOR" mode.
2. Select "REAR DEF SW" and monitor while pressing the rear DEF switch ON and OFF.
Is the inspection result normal?
YES
>> Inspection End.
NO
>> Refer to
.
Diagnosis Procedure
INFOID:0000000009541091
Regarding Wiring Diagram information, refer to
.
1.
CHECK BCM OUTPUT SIGNAL
1. Turn ignition switch OFF.
2. Disconnect front air control connector.
3. Check voltage between front air control harness connector and ground.
Is the inspection result normal?
YES
>> GO TO 3.
NO
>> GO TO 2.
2.
CHECK REAR WINDOW DEFOGGER SWITCH CIRCUIT
1. Disconnect BCM connector.
2. Check continuity between BCM harness connector and front air control harness connector.
Monitored Item
Condition
Status
REAR DEF SW
Rear DEF switch ON (LED ON)
On
Rear DEF switch OFF (LED OFF)
Off
(+)
(–)
Voltage (V)
(Approx.)
Front air control
Connector
Terminal
M33
10
Ground
Battery voltage
REAR WINDOW DEFOGGER SWITCH
DEF-21
< DTC/CIRCUIT DIAGNOSIS >
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DEF
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3. Check continuity between BCM harness connector and ground.
Is the inspection result normal?
YES
>> Replace BCM. Refer to
BCS-70, "Removal and Installation"
(with Intelligent Key) or
(without Intelligent Key).
NO
>> Repair or replace harness.
3.
CHECK GROUND CIRCUIT
Check continuity between front air control harness connector and ground.
Is the inspection result normal?
YES
>> GO TO 4.
NO
>> Repair or replace harness.
4.
CHECK REAR WINDOW DEFOGGER SWITCH
DEF-21, "Component Inspection"
.
Is the inspection result normal?
YES
>> Check intermittent incident. Refer to
GI-41, "Intermittent Incident"
.
NO
>> Replace front air control. Refer to
HAC-56, "Removal and Installation"
.
Component Inspection
INFOID:0000000009541092
1.
CHECK REAR WINDOW DEFOGGER SWITCH
1. Turn ignition switch OFF.
2. Disconnect front air control connector.
3. Check continuity between front air control terminals.
Is the inspection result normal?
YES
>> Inspection End.
NO
>> Replace front air control. Refer to
HAC-56, "Removal and Installation"
BCM
Front air control
Continuity
Connector
Terminal
Connector
Terminal
M18 (without Intelligent Key system)
10
M33
10
Yes
M97 (with Intelligent Key system)
15
BCM
Ground
Continuity
Connector
Terminal
M18 (without Intelligent Key system)
10
No
M97 (with Intelligent Key system)
15
Front air control
Ground
Continuity
Connector
Terminal
M33
8
Yes
Front air control
Condition
Continuity
Terminal
10
8
Rear window defogger switch
Pressed
Yes
Released
No
DEF-22
< DTC/CIRCUIT DIAGNOSIS >
REAR WINDOW DEFOGGER RELAY
REAR WINDOW DEFOGGER RELAY
Description
INFOID:0000000009541093
Power is supplied to the rear window defogger with BCM control.
Component Function Check
INFOID:0000000009541094
1.
CHECK FUNCTION
1. Turn ignition switch ON.
2. Check that an operation noise of rear window defogger relay can be heard when turning the rear window
defogger switch ON.
Is the inspection result normal?
YES
>> Rear window defogger relay function is OK.
NO
>> Refer to
Diagnosis Procedure
INFOID:0000000009541095
Regarding Wiring Diagram information, refer to
.
1.
CHECK REAR WINDOW DEFOGGER RELAY POWER SUPPLY CIRCUIT
1. Turn ignition switch OFF and disconnect rear window defogger relay connector.
2. Turn ignition switch ON.
3. Check voltage between rear window defogger relay harness connector and ground.
Is the inspection result normal?
YES
>> GO TO 3.
NO
>> GO TO 2.
2.
CHECK FUSE
1. Turn ignition switch OFF.
2. Check 10A fuse (No. 5).
Is the inspection result normal?
YES
>> Check ignition power supply circuit. Refer to
PG-17, "Wiring Diagram — Ignition Power Supply —
NO
>> Replace the blown fuse after repairing the affected circuit.
3.
CHECK REAR WINDOW DEFOGGER RELAY CONTROL CIRCUIT
1. Turn ignition switch OFF.
2. Disconnect BCM connector.
3. Check continuity between BCM harness connector and rear window defogger relay harness connector.
4. Check continuity between BCM harness connector and ground.
(+)
(
−)
Voltage (V)
(Approx.)
Rear window defogger relay
Connector
Terminal
M14
2
Ground
Battery voltage
BCM
Rear window defogger relay
Continuity
Connector
Terminal
Connector
Terminal
M19 (without Intelligent Key system)
44
M14
1
Yes
M97 (with Intelligent Key system)
1
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