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Defogger: Other Nissan Note E12

Heated Glass/defoggers 14 illustrations ~1306 words

Precaution for Supplemental Restraint System (SRS) "AIR BAG" and "SEAT BELT PRE-TENSIONER"

The Supplemental Restraint System such as "AIR BAG" and "SEAT BELT PRE-TENSIONER", used along with a front seat belt, helps to reduce the risk or severity of injury to the driver and front passenger for certain types of collision. Information necessary to service the system safely is included in the SRS AIRBAG and SEAT BELTS article of this Service Information.

WARNINGTo avoid rendering the SRS inoperative, which could increase the risk of personal injury or death in the event of a collision which would result in air bag inflation, all maintenance must be performed by an authorized NISSAN/INFINITI dealer. Improper maintenance, including incorrect removal and installation of the SRS, can lead to personal injury caused by unintentional activation of the system. For removal of Spiral Cable and Air Bag Module, see the SRS AIRBAG . Do not use electrical test equipment on any circuit related to the SRS unless instructed to in this Service Information. SRS wiring harnesses can be identified by yellow and/or orange harnesses or harness connectors.

PRECAUTIONS WHEN USING POWER TOOLS (AIR OR ELECTRIC) AND HAMMERS

WARNINGWhen working near the Airbag Diagnosis Sensor Unit or other Airbag System sensors with the Ignition ON or engine running, DO NOT use air or electric power tools or strike near the sensor(s) with a hammer. Heavy vibration could activate the sensor(s) and deploy the air bag(s), possibly causing serious injury. When using air or electric power tools or hammers, always switch the Ignition OFF, disconnect the battery and wait at least three minutes before performing any service.

Scheme 7

Scheme 7: Component Parts Location
Scheme 7: Component Parts Location
No.ComponentFunction
1.BCMOperates the rear window defogger with the operation of rear window defogger switch. Performs the timer control of rear window defogger. Refer to " BODY CONTROL SYSTEM: COMPONENT PARTS LOCATION " (with Intelligent Key) or " BODY CONTROL SYSTEM: COMPONENT PARTS LOCATION " (without Intelligent Key) for detailed installation location.
2.Door mirror defogger LH (RH side similar)Refer to " DOOR MIRROR DEFOGGER ".
3.Rear window defoggerRefer to " REAR WINDOW DEFOGGER ".
4.Front air control (rear window defogger switch)The rear window defogger switch is turned ON. Turns the indicator lamp ON when detecting the operation of rear window defogger.
5.Rear window defogger relayOperates the rear window defogger with the control signal from BCM.
6.CondenserRemoves the noise that is generated when the rear window defogger turns ON/OFF.

Heats the heating wire with the power supply from the rear window defogger relay to prevent the rear window from fogging up.

Scheme 8

Scheme 8: Rear window defogger
Scheme 8: Rear window defogger

Heats the heating wire with the power supply from the rear window defogger relay to prevent the door mirror from fogging up.

Scheme 9

Scheme 9: Door mirror defogger
Scheme 9: Door mirror defogger

Scheme 10

Scheme 10: SYSTEM DIAGRAM
Scheme 10: SYSTEM DIAGRAM

Timer function

  1. BCM turns rear window defogger relay ON for approximately 15 minutes when rear window defogger switch is turned ON while ignition switch is ON. It makes rear window defogger and door mirror defogger (with door mirror defogger) operate.
  2. Timer is canceled after pressing rear window defogger switch again during timer operation. Then BCM turns rear window defogger relay OFF. The same reaction also occurs during timer operation, if the ignition switch is turned OFF.

INPUT/OUTPUT SIGNAL CHART

SwitchInput signal to BCMBCM functionActuator
Rear window defogger switchDefogger switch signalRear window defogger and door mirror defogger (1) controlRear window defogger Door mirror defogger (1)
Ignition switchIgnition signal
(1) With door mirror defogger
(1)With door mirror defogger

DATA MONITOR

Monitor Item [Unit]Description
PUSH SW [On/Off]Indicates condition of push-button ignition switch.
REAR DEF SW [On/Off]Indicates condition of rear window defogger switch.
Monitor Item [Unit]Description
IGN ON SW [On/Off]Indicates condition of ignition switch ON position.
ACC ON SW [On/Off]Indicates condition of ignition switch ACC position.
REAR DEF SW [On/Off]Indicates condition of rear window defogger switch.
RR DEF TIME [On/Off]Indicates condition of rear window defogger switch timer.

List of ECU Reference

ECUReference
BCM (with Intelligent Key system)" REFERENCE VALUE "
" FAIL-SAFE "
" DTC INSPECTION PRIORITY CHART "
" DTC INDEX "
BCM (without Intelligent Key system)" REFERENCE VALUE "
" FAIL-SAFE "
" DTC INSPECTION PRIORITY CHART "
" DTC INDEX "

Scheme 11

Scheme 11: Wiring Diagram
Scheme 11: Wiring Diagram

Scheme 12

Scheme 12: Connector End Views
Scheme 12: Connector End Views

Scheme 13

Scheme 13
Scheme 13

Scheme 14

Scheme 14
Scheme 14

Scheme 15

Scheme 15
Scheme 15

Scheme 16

Scheme 16: OVERALL SEQUENCE
Scheme 16: OVERALL SEQUENCE

DETAILED FLOW

  1. GET INFORMATION FOR SYMPTOM Get the detailed information from the customer about the symptom (the condition and the environment when the incident/malfunction occurred). : GO TO 2.
  2. CHECK DTC Check DTC. Perform the following procedure if DTC is displayed. Record DTC and freeze frame data (Print them out with CONSULT.) Erase DTC. Study the relationship between the cause detected by DTC and the symptom described by the customer. Check related service bulletins for information. Is any symptom described and any DTC detected? Symptom is described, DTC is displayed: GO TO 3. Symptom is described, DTC is not displayed: GO TO 4 . Symptom is not described, DTC is displayed: GO TO 5 .
  3. CONFIRM THE SYMPTOM Confirm the symptom described by the customer. Connect CONSULT to the vehicle in "DATA MONITOR" mode and check real time diagnosis results. Verify relation between the symptom and the condition when the symptom is detected. : GO TO 5 .
  4. CONFIRM THE SYMPTOM Confirm the symptom described by the customer. Connect CONSULT to the vehicle in "DATA MONITOR" mode and check real time diagnosis results. Verify relation between the symptom and the condition when the symptom is detected. : GO TO 6 .
  5. PERFORM DTC CONFIRMATION PROCEDURE Perform DTC Confirmation Procedure for the displayed DTC, and then check that DTC is detected again. At this time, always connect CONSULT to the vehicle, and check diagnostic results in real time. If two or more DTCs are detected, refer to " «DTC INSPECTION PRIORITY CHART»(ref-675612-S08625185972014120500000) " (with Intelligent Key) or " «DTC INSPECTION PRIORITY CHART»(ref-675613-S19800679852014120500000) " (without Intelligent Key) and determine trouble diagnosis order. NOTE: Freeze frame data is useful if the DTC is not detected. Perform Component Function Check if DTC Confirmation Procedure is not included in Service Information. This simplified check procedure is an effective alternative though DTC cannot be detected during this check. If the result of Component Function Check is NG, it is the same as the detection of DTC by DTC Confirmation Procedure. Is DTC detected? YES: GO TO 8 . NO: Refer to " «INTERMITTENT INCIDENT»(ref-675571-S38824794042014120500000) ".
  6. PERFORM BASIC INSPECTION Perform " «WORK FLOW»(ref-675603-S28969784202014120500000) ". : GO TO 7
  7. DETECT MALFUNCTIONING SYSTEM BY SYMPTOM TABLE Detect malfunctioning system according to " «SYSTEM DESCRIPTION»(ref-675603-S27665584052014120500000) " based on the confirmed symptom in step 4 , and determine the trouble diagnosis order based on possible causes and symptom. : GO TO 8.
  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 Repair or replace the malfunctioning part. Reconnect parts or connectors disconnected during Diagnostic Procedure again after repair and replacement. 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.

Component Function Check

  1. CHECK REAR WINDOW DEFOGGER SWITCH FUNCTION Turn ignition switch ON. 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 " «DIAGNOSIS PROCEDURE»(ref-675603-S31200358952014120500000) ".
  2. CHECK REAR DEFOGGER ON STATUS Using CONSULT, select "BCM (REAR DEFOGGER)", then "DATA MONITOR" mode. Select "REAR DEF SW" and monitor while pressing the rear DEF switch ON and OFF. Monitored Item Condition Status REAR DEF SW Rear DEF switch ON (LED ON) On Rear DEF switch OFF (LED OFF) Off Is the inspection result normal? YES: Inspection End. NO: Refer to " «DIAGNOSIS PROCEDURE»(ref-675603-S31200358952014120500000) ".
  1. CHECK FUNCTION Turn ignition switch ON. 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»(ref-675603-S36137323502014120500000) "
  1. CHECK REAR WINDOW DEFOGGER Check that the heating wire of rear window defogger is heated when turning the rear window defogger switch ON. Is the inspection result normal? YES: Rear window defogger is OK. NO: Refer to " «DIAGNOSIS PROCEDURE»(ref-675603-S37893493372014120500000) ".
  1. CHECK DOOR MIRROR DEFOGGER LH Check that heating wire of door mirror defogger LH is heated when turning the rear window defogger switch ON. Is the inspection result normal? YES: Door mirror defogger is OK. NO: Refer to " «DIAGNOSIS PROCEDURE»(ref-675603-S30903449342014120500000) ".
  1. CHECK DOOR MIRROR DEFOGGER RH Check that the heating wire of door mirror defogger RH is heated when turning the rear window defogger switch ON. Is the inspection result normal? YES: Door mirror defogger RH is OK. NO: Refer to " «DIAGNOSIS PROCEDURE»(ref-675603-S05344325232014120500000) ".

REPAIR EQUIPMENT

  1. Conductive silver composition (Dupont No. 4817 or equivalent)
  2. Ruler 30 cm (11.8 in) long
  3. Drawing pen
  4. Heat gun
  5. Alcohol
  6. Cloth

Scheme 17

Scheme 17: REPAIRING PROCEDURE
Scheme 17: REPAIRING PROCEDURE

Scheme 18

Scheme 18
Scheme 18

Scheme 19

Scheme 19
Scheme 19
  1. Wipe broken heat wire and its surrounding area clean with a cloth dampened in alcohol.
  2. Apply a small amount of conductive silver composition to tip of drawing pen. NOTE: Shake silver composition container before use.
  3. Place ruler on glass along broken line. Deposit conductive silver composition on break with drawing pen. Slightly overlap existing heat wire on both sides [preferably 5 mm (0.20 in)] of the break.
  4. After repair has been completed, check repaired wire for continuity. This check should be conducted 10 minutes after silver composition is deposited. CAUTION: Do not touch repaired area while test is being conducted.
  5. Apply a constant stream of hot air directly to the repaired area for approximately 20 minutes with a heat gun. A minimum distance of 3 cm (1.2 in) should be kept between repaired area and hot air outlet. NOTE: If a heat gun is not available, let the repaired area dry for 24 hours.

Scheme 20

Scheme 20: REMOVAL
Scheme 20: REMOVAL
  1. Remove back door inner finisher. Refer to " «BACK DOOR INNER FINISHER: REMOVAL AND INSTALLATION»(ref-675611-S00933277502014120500000) ".
  2. Disconnect the harness connectors (B), from the condenser (1).
  3. Remove the condenser bolt (A) and the condenser (1).

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