Nissan Sentra. Instruction — part 216
DIAGNOSIS AND REPAIR WORK FLOW
DEF-29
< BASIC INSPECTION >
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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-30
< DTC/CIRCUIT DIAGNOSIS >
REAR WINDOW DEFOGGER SWITCH
DTC/CIRCUIT DIAGNOSIS
REAR WINDOW DEFOGGER SWITCH
Description
INFOID:0000000009759097
• 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:0000000009759098
1.
CHECK REAR WINDOW DEFOGGER SWITCH 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
.
Diagnosis Procedure
INFOID:0000000009759099
Regarding Wiring Diagram information, refer to
.
1.
CHECK REAR WINDOW DEFOGGER ON SIGNAL CIRCUIT
1. Turn ignition switch to ON.
2. Turn rear window defogger switch ON.
3. Check voltage between BCM connector and ground.
Is the inspection result normal?
YES
>> Replace BCM. Refer to
BCS-73, "Removal and Installation"
(with Intelligent Key system) or
126, "Removal and Installation"
(without Intelligent Key system).
NO
>> GO TO 2.
2.
CHECK HARNESS CONTINUITY
1. Turn ignition switch to OFF.
2. Disconnect BCM and A/C auto amp.
3. Check continuity between BCM connector and A/C auto amp.
Monitor Item
Condition
status
REAR DEF SW
Rear window defogger
switch
Pressed
On
Released
Off
(+)
(–)
Condition
Voltage (V)
(Approx.)
BCM
Connector
Terminal
M21 (without Intelligent Key)
10
Ground
Rear window defogger
switch
ON 0
M84 (with Intelligent Key)
15
OFF
Battery voltage
REAR WINDOW DEFOGGER SWITCH
DEF-31
< DTC/CIRCUIT DIAGNOSIS >
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4. Check continuity between BCM harness connector and ground.
Is the inspection result normal?
YES
>> Replace A/C auto amp. Refer to
HAC-105, "Removal and Installation"
189, "Removal and Installation"
(without auto A/C).
NO
>> Repair or replace harness.
BCM
A/C auto amp.
Continuity
Connector
Terminal
Connector
Terminal
M21 (without Intelligent Key)
10
M29 (without A/C)
16
Yes
M33 (with instruction A/C)
M84 (with Intelligent Key)
15
M33 (with instruction A/C)
M34 (with auto A/C)
BCM
Ground
Continuity
Connector
Terminal
M21 (without Intelligent Key)
10
No
M84 (with Intelligent Key)
15
DEF-32
< DTC/CIRCUIT DIAGNOSIS >
REAR WINDOW DEFOGGER RELAY
REAR WINDOW DEFOGGER RELAY
Description
INFOID:0000000009759100
Power is supplied to the rear window defogger with BCM control.
Component Function Check
INFOID:0000000009759101
1.
CHECK REAR WINDOW DEFOGGER RELAY POWER SUPPLY CIRCUIT
1. Turn ignition switch ON.
2. Check that an operation noise of rear window defogger relay (located in IPDM E/R) can be heard when
turning the rear window defogger switch ON.
Is the inspection result normal?
YES
>> Rear window defogger relay power supply circuit is OK.
NO
>> Refer to
.
Diagnosis Procedure
INFOID:0000000009759102
Regarding Wiring Diagram information, refer to
.
1.
CHECK FUSES
Check if any of the following fuses in the IPDM E/R are blown.
Is the inspection result normal?
YES
>> GO TO 2
NO
>> Replace the fuse after repairing the affected circuit.
2.
CHECK REAR WINDOW DEFOGGER RELAY POWER SUPPLY CIRCUIT
1. Turn ignition switch ON.
2. Check voltage between IPDM E/R connector E48 terminal 62 and ground.
Is the inspection result normal?
YES
>> GO TO 3
NO
>> Replace IPDM E/R. Refer to
PCS-30, "Removal and Installation"
(with Intelligent Key system) or
PCS-58, "Removal and Installation"
(without Intelligent Key system).
3.
CHECK INTERMITTENT INCIDENT
Check intermittent incident.
GI-39, "Intermittent Incident"
Is the inspection result normal?
YES
>> Check the following:
• Battery power supply circuit.
• IPDM E/R.
NO
>> Repair or replace the malfunctioning parts.
COMPONENT PARTS
AMPERE
FUSE NO.
IPDM E/R
15A
31
32
Terminals
Condition of rear
window defogger
switch
Voltage (V)
(Approx.)
(+)
(–)
IPDM E/R con-
nector
Terminal
E48
62
Ground
ON Battery
voltage
OFF
0V
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