RM35X0E _59 Vehicle Exterior _079318 WINDOW / GLASS _0384712 WINDSHIELD DEICER SYSTEM J

WINDOW / GLASS  WINDSHIELD DEICER SYSTEM  Windshield Deicer does not Operate  


DESCRIPTION

When the front wiper deicer switch is operated, an activation request signal is sent to the center cluster module control assembly through the direct line. The center cluster module control assembly sends an operation request signal to the air conditioning amplifier assembly via LIN communication, and when the air conditioning amplifier assembly receives the operation request signal, the system turns on the front wiper deicer relay (FR DEICER) and operates the windshield deicer system.

WIRING DIAGRAM

E416633E01
1.26,0.24 2.646,0.469 1.385,0.229 10 false from IG1 NO.3 Relay 0.438,3.542 1.823,3.771 1.385,0.229 10 false from IG1 NO.1 Relay 0.906,3.073 1.708,3.302 0.802,0.229 10 false from Battery 1.021,2.042 2.667,2.26 1.646,0.219 10 false Front Wiper Deicer Switch 1.01,1.865 1.469,2.063 0.458,0.198 10 false N54 0.906,0.854 1.219,1.052 0.313,0.198 10 false IG 2.698,0.854 3.313,1.052 0.615,0.198 10 false IND- 2.688,1.292 3.146,1.49 0.458,0.198 10 false ECU 0.698,0.854 0.854,1.052 0.156,0.198 10 false 5 3.115,0.844 3.271,1.042 0.156,0.198 10 false 4 3.115,1.292 3.271,1.49 0.156,0.198 10 false 2 3.688,0.833 4,1.031 0.313,0.198 10 false 11 3.969,0.958 4.427,1.156 0.458,0.198 10 false SWL2 3.99,1.417 4.448,1.615 0.458,0.198 10 false SW 6 4.802,1.177 5.417,1.375 0.615,0.198 10 false LIN1 5.99,1.177 6.604,1.375 0.615,0.198 10 false LIN1 3.823,2.063 5.198,2.427 1.375,0.365 10 false Center Cluster Module Control Assembly 2.51,3.75 3.406,3.958 0.896,0.208 10 false A/C-IG1 NO.2 2.656,3.271 3.24,3.49 0.583,0.219 10 false DEICER 3.313,4.115 4.844,4.521 1.531,0.406 10 false Windshield Deicer Relay Assembly (FR DEICER) 6,3.583 6.615,3.781 0.615,0.198 10 false F DEF 5.552,4.094 6.01,4.292 0.458,0.198 10 false N44 5.552,4.26 7.115,4.656 1.563,0.396 10 false Air Conditioning Amplifier Assembly 3.74,1.292 3.896,1.49 0.156,0.198 10 false 3 4.583,3.458 4.74,3.656 0.156,0.198 10 false 1 4.594,2.969 4.75,3.167 0.156,0.198 10 false 3 3.51,3.458 3.667,3.656 0.156,0.198 10 false 2 3.521,2.969 3.677,3.167 0.156,0.198 10 false 5 2.583,5.969 4.438,6.333 1.854,0.365 10 false Windshield Glass (Windshield Deicer Wire) 2.594,5.792 3.052,5.99 0.458,0.198 10 false A51 2.625,5.188 2.781,5.385 0.156,0.198 10 false 2 4.292,5.188 4.448,5.385 0.156,0.198 10 false 1 0.563,6.375 2.198,6.594 1.635,0.219 10 false : LIN Communication Line 3.823,1.875 4.281,2.073 0.458,0.198 10 false N55 5.74,3.448 5.896,3.646 0.156,0.198 10 false 6

CAUTION / NOTICE / HINT

NOTICE:

Inspect the fuses and relay for circuits related to this system before performing the following procedure.


PROCEDURE

1.CHECK AIR CONDITIONING SYSTEM
a.

Check air conditioning system.

Click hereVehicle Interior>HEATING / AIR CONDITIONING>AIR CONDITIONING SYSTEM (for Automatic Air Conditioning System)>HOW TO PROCEED WITH TROUBLESHOOTING

HINT:

Both the windshield deicer system operation signal and air conditioning system operation signal are transmitted to the air conditioning amplifier assembly via the same communication line.


OK:

The air conditioning system operates normally.



Result:
Proceed to
OK
NG



OK

2.PERFORM ACTIVE TEST USING GTS

NG

GO TO AIR CONDITIONING SYSTEM

Click hereVehicle Interior>HEATING / AIR CONDITIONING>AIR CONDITIONING SYSTEM (for Automatic Air Conditioning System)>HOW TO PROCEED WITH TROUBLESHOOTING


2.PERFORM ACTIVE TEST USING GTS
a.

Using the GTS, perform the Active Test.

Click hereVehicle Exterior>WINDOW / GLASS>WINDSHIELD DEICER SYSTEM>DATA LIST / ACTIVE TEST

Body Electrical > Air Conditioner > Active Test
Tester Display Measurement Item Control Range Diagnostic Note
Deicer Relay (Front) Windshield deicer relay assembly (FR DEICER) OFF or ON -
Body Electrical > Air Conditioner > Active Test
Tester Display
Deicer Relay (Front)
50004 121 38
OK:

The windshield deicer system operates normally.



Result:
Proceed to
OK
NG



OK

3.INSPECT FRONT WIPER DEICER SWITCH

NG

7.CHECK HARNESS AND CONNECTOR (WINDSHIELD GLASS [WINDSHIELD DEICER WIRE] - BATTERY)
3.INSPECT FRONT WIPER DEICER SWITCH
a.

Remove the front wiper deicer switch.

Click hereVehicle Exterior>WINDOW / GLASS>WINDSHIELD DEICER SWITCH>REMOVAL


b.

Inspect the front wiper deicer switch.

Click hereVehicle Exterior>WINDOW / GLASS>WINDSHIELD DEICER SWITCH>INSPECTION


Result:
Proceed to
OK
NG



OK

4.CHECK HARNESS AND CONNECTOR (FRONT WIPER DEICER SWITCH - BATTERY)

NG

REPLACE FRONT WIPER DEICER SWITCH

Click hereVehicle Exterior>WINDOW / GLASS>WINDSHIELD DEICER SWITCH>REMOVAL


4.CHECK HARNESS AND CONNECTOR (FRONT WIPER DEICER SWITCH - BATTERY)
a.
E380278C08
1.49,0.219 1.958,0.438 0.469,0.219 1.958,1.375 2.573,0.719 2.573,0.719 2.771,0.719 true 0.073,0.031 0.385,0.188 0.313,0.156 10 false *a 1.604,0.25 2.021,0.458 0.417,0.208 10 false N54 2.844,0.625 3.156,0.823 0.313,0.198 10 false IG
*a Front view of wire harness connector
(to Front Wiper Deicer Switch)


Disconnect the front wiper deicer switch connector.


b.

Measure the voltage according to the value(s) in the table below.

Standard Voltage:
Tester Connection Switch Condition Specified Condition
N54-5 (IG) - Body ground Ignition switch off Below 1 V
Ignition switch ON 11 to 14 V



Result:
Proceed to
OK
NG



OK

5.CHECK HARNESS AND CONNECTOR (FRONT WIPER DEICER SWITCH - CENTER CLUSTER MODULE CONTROL ASSEMBLY)

NG

REPAIR OR REPLACE HARNESS OR CONNECTOR

5.CHECK HARNESS AND CONNECTOR (FRONT WIPER DEICER SWITCH - CENTER CLUSTER MODULE CONTROL ASSEMBLY)
a.

Disconnect the N54 front wiper deicer switch connector.


b.

Disconnect the N55 center cluster module control assembly connector.


c.

Measure the resistance according to the value(s) in the table below.

Standard Resistance:
Tester Connection Condition Specified Condition
N54-2 (ECU) - N55-3 (SW 6) Always Below 1 Ω
N54-4 (IND-) - N55-11 (SWL2) Always Below 1 Ω
N54-2 (ECU) or N55-3 (SW 6) - Body ground Always 10 kΩ or higher
N54-4 (IND-) or N55-11 (SWL2) - Body ground Always 10 kΩ or higher



Result:
Proceed to
OK
NG



OK

6.CHECK CENTER CLUSTER MODULE CONTROL ASSEMBLY

NG

REPAIR OR REPLACE HARNESS OR CONNECTOR

6.CHECK CENTER CLUSTER MODULE CONTROL ASSEMBLY
a.

Replace the center cluster module control assembly with a new or known good one.

Click hereVehicle Interior>HEATING / AIR CONDITIONING>AIR CONDITIONING PANEL (for Front)>REMOVAL


b.

Check that the windshield deicer system operates normally.

OK:

The windshield deicer system operates normally.



Result:
Proceed to
OK
NG



OK

END (CENTER CLUSTER MODULE CONTROL ASSEMBLY IS DEFECTIVE)

NG

REPLACE AIR CONDITIONING AMPLIFIER ASSEMBLY

Click hereVehicle Interior>HEATING / AIR CONDITIONING>AIR CONDITIONING AMPLIFIER>REMOVAL


7.CHECK HARNESS AND CONNECTOR (WINDSHIELD GLASS [WINDSHIELD DEICER WIRE] - BATTERY)
a.
E403155C07
1.479,0.188 1.927,0.458 0.448,0.271 0.083,0.063 0.385,0.313 0.302,0.25 10 false *a 1.583,0.24 2.021,0.479 0.438,0.24 10 false A51
*a Front view of wire harness connector
(to Windshield Glass [Windshield Deicer Wire])


Disconnect the windshield glass (windshield deicer wire) connector.


b.

Measure the voltage according to the value(s) in the table below.

Standard Voltage:
Tester Connection Switch Condition Specified Condition
A51-1 - Body ground Ignition switch ON, front wiper deicer switch off Below 1 V
Ignition switch ON, front wiper deicer switch on 11 to 14 V



Result:
Proceed to
OK
NG



OK

8.CHECK HARNESS AND CONNECTOR (WINDSHIELD GLASS [WINDSHIELD DEICER WIRE] - BODY GROUND)

NG

9.INSPECT WINDSHIELD DEICER RELAY ASSEMBLY (FR DEICER)
8.CHECK HARNESS AND CONNECTOR (WINDSHIELD GLASS [WINDSHIELD DEICER WIRE] - BODY GROUND)
a.
E403155C08
1.479,0.188 1.927,0.458 0.448,0.271 0.083,0.063 0.385,0.313 0.302,0.25 10 false *a 1.583,0.24 2.021,0.479 0.438,0.24 10 false A51
*a Front view of wire harness connector
(to Windshield Glass [Windshield Deicer Wire])


Disconnect the windshield glass (windshield deicer wire) connector.


b.

Measure the resistance according to the value(s) in the table below.

Standard Resistance:
Tester Connection Condition Specified Condition
A51-2 - Body ground Always Below 1 Ω



Result:
Proceed to
OK
NG



OK

REPLACE WINDSHIELD GLASS (WINDSHIELD DEICER WIRE)

Click hereVehicle Exterior>WINDOW / GLASS>WINDSHIELD GLASS>REMOVAL


NG

REPAIR OR REPLACE HARNESS OR CONNECTOR

9.INSPECT WINDSHIELD DEICER RELAY ASSEMBLY (FR DEICER)
a.

Remove the windshield deicer relay assembly (FR DEICER) from the No. 2 engine room relay block.


b.

Inspect the windshield deicer relay assembly (FR DEICER).

Click hereVehicle Exterior>WINDOW / GLASS>RELAY>ON-VEHICLE INSPECTION


Result:
Proceed to
OK
NG



OK

10.CHECK HARNESS AND CONNECTOR (WINDSHIELD DEICER RELAY ASSEMBLY [FR DEICER] - BATTERY)

NG

REPLACE WINDSHIELD DEICER RELAY ASSEMBLY (FR DEICER)

10.CHECK HARNESS AND CONNECTOR (WINDSHIELD DEICER RELAY ASSEMBLY [FR DEICER] - BATTERY)
a.
B472073C02
0.156,0.115 0.469,0.313 0.313,0.198 10 false *a
*a Front view of wire harness connector
(to Windshield Deicer Relay Assembly [FR DEICER])


Remove the windshield deicer relay assembly (FR DEICER) from the No. 2 engine room relay block.


b.

Measure the voltage according to the value(s) in the table below.

Standard Voltage:
Tester Connection Condition Specified Condition
Windshield deicer relay assembly (FR DEICER) terminal 5 - Body ground Always 11 to 14 V
Windshield deicer relay assembly (FR DEICER) terminal 2 - Body ground Ignition switch ON 11 to 14 V



Result:
Proceed to
OK
NG



OK

11.CHECK HARNESS AND CONNECTOR (WINDSHIELD DEICER RELAY ASSEMBLY [FR DEICER] - AIR CONDITIONING AMPLIFIER ASSEMBLY AND WINDSHIELD GLASS [WINDSHIELD DEICER WIRE])

NG

REPAIR OR REPLACE HARNESS OR CONNECTOR

11.CHECK HARNESS AND CONNECTOR (WINDSHIELD DEICER RELAY ASSEMBLY [FR DEICER] - AIR CONDITIONING AMPLIFIER ASSEMBLY AND WINDSHIELD GLASS [WINDSHIELD DEICER WIRE])
a.

Remove the windshield deicer relay assembly (FR DEICER) from the No. 2 engine room relay block.


b.

Disconnect the A51 windshield glass (windshield deicer wire) connector.


c.

Disconnect the N44 air conditioning amplifier assembly connector.


d.

Measure the resistance according to the value(s) in the table below.

Standard Resistance:
Tester Connection Condition Specified Condition
Windshield deicer relay assembly (FR DEICER) terminal 3 - A51-1 Always Below 1 Ω
Windshield deicer relay assembly (FR DEICER) terminal 1 - N44-6 (F DEF) Always Below 1 Ω
Windshield deicer relay assembly (FR DEICER) terminal 3 or A51-1 - Body ground Always 10 kΩ or higher
Windshield deicer relay assembly (FR DEICER) terminal 1 or N44-6 (F DEF) - Body ground Always 10 kΩ or higher



Result:
Proceed to
OK
NG



OK

REPLACE AIR CONDITIONING AMPLIFIER ASSEMBLY

Click hereVehicle Interior>HEATING / AIR CONDITIONING>AIR CONDITIONING AMPLIFIER>REMOVAL


NG

REPAIR OR REPLACE HARNESS OR CONNECTOR