RM36D0EC _59 Vehicle Exterior _083096 LIGHTING (EXT) _0402622 LIGHTING SYSTEM J

LIGHTING (EXT)  LIGHTING SYSTEM  Front Fog Light Circuit  


DESCRIPTION

The main body ECU (multiplex network body ECU) controls the front fog lights.

WIRING DIAGRAM

E485261E05
3.156,2.063 3.313,2.26 0.156,0.198 10 false B 1.896,2.042 2.052,2.24 0.156,0.198 10 false E 1.885,3.281 2.042,3.479 0.156,0.198 10 false E 3.125,3.271 3.281,3.469 0.156,0.198 10 false B 3.323,3.292 3.479,3.49 0.156,0.198 10 false 2 3.323,2.073 3.479,2.271 0.156,0.198 10 false 2 4.135,3.167 5.552,3.51 1.417,0.344 10 false 6F 4.146,3.333 5.563,3.677 1.417,0.344 10 false Power Distribution Box Assembly 3.917,0.917 5.333,1.26 1.417,0.344 10 false 28 4.594,1.031 6.01,1.375 1.417,0.344 10 false I/F 5.188,1.531 6.604,1.875 1.417,0.344 10 false CPU 5.49,3.896 7.156,4.271 1.667,0.375 10 false Main Body ECU (Multiplex Network Body ECU) 0.719,4.448 2.625,4.708 1.906,0.26 10 false : CXPI Communication Line 2.698,1.688 4.604,1.948 1.906,0.26 10 false FOG FR 1.635,1.229 3.542,1.49 1.906,0.26 10 false FOG FR 0.396,1 1.354,1.354 0.958,0.354 10 false from Auxiliary Battery 1.677,2.021 2.635,2.375 0.958,0.354 10 false 1 1.656,3.219 2.615,3.573 0.958,0.354 10 false 1 3.344,0.938 4.302,1.292 0.958,0.354 10 false 1 2.563,0.917 2.719,1.115 0.156,0.198 10 false 2 2.573,1.292 2.729,1.49 0.156,0.198 10 false 5 3.333,1.26 3.49,1.458 0.156,0.198 10 false 3 1.844,2.656 4.167,3.073 2.323,0.417 10 false B18*1, B11*2 1.875,2.802 4.198,3.219 2.323,0.417 10 false Fog Light Assembly LH 1.823,4.073 4.146,4.49 2.323,0.417 10 false Fog Light Assembly RH 4.625,0.625 6.042,0.969 1.417,0.344 10 false +B 1.854,3.896 4.177,4.313 2.323,0.417 10 false B17*1, B10*2 2.479,4.458 4.833,4.792 2.354,0.333 10 false *1: except Off Road Package 4.365,4.469 6.719,4.75 2.354,0.281 10 false *2: for Off Road Package

CAUTION / NOTICE / HINT

NOTICE:

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


PROCEDURE

1.READ VALUE USING GTS
a.

Using the GTS, read the Data List.

Body Electrical > Power Distribution Box > Data List
Tester Display Measurement Item Range Normal Condition Diagnostic Note
Front Fog Light External Relay Input Signal Front fog light switch input signal OFF or ON OFF: Front fog light switch off
ON: Front fog light switch on 		-
Body Electrical > Power Distribution Box > Data List
Tester Display
Front Fog Light External Relay Input Signal
50003 475 1320
OK:

Display changes according to the front fog light switch operation.



Result:
Proceed to
OK
NG



OK

2.READ VALUE USING GTS

NG

PROCEED TO NEXT SUSPECTED AREA SHOWN IN PROBLEM SYMPTOMS TABLE

Click hereVehicle Exterior>LIGHTING (EXT)>LIGHTING SYSTEM>PROBLEM SYMPTOMS TABLE


2.READ VALUE USING GTS
a.

Using the GTS, read the Data List.

Body Electrical > Power Distribution Box > Data List
Tester Display Measurement Item Range Normal Condition Diagnostic Note
Front Fog Light External Relay Output Signal Front fog light output condition OFF or ON OFF: Front fog light not illuminated
ON: Front fog light illuminated 		-
Body Electrical > Power Distribution Box > Data List
Tester Display
Front Fog Light External Relay Output Signal
50003 475 1321
OK:

Display changes according to the front fog light switch operation.



Result:
Proceed to
OK
NG



OK

3.INSPECT FOG FR RELAY

NG

PROCEED TO NEXT SUSPECTED AREA SHOWN IN PROBLEM SYMPTOMS TABLE

Click hereVehicle Exterior>LIGHTING (EXT)>LIGHTING SYSTEM>PROBLEM SYMPTOMS TABLE


3.INSPECT FOG FR RELAY

Click hereVehicle Exterior>LIGHTING (EXT)>RELAY>ON-VEHICLE INSPECTION

Result:
Proceed to
OK
NG



OK

4.CHECK HARNESS AND CONNECTOR (FOG FR RELAY - BATTERY)

NG

REPLACE FOG FR RELAY

4.CHECK HARNESS AND CONNECTOR (FOG FR RELAY - BATTERY)
a.
B341518C14
0.073,0.063 0.385,0.219 0.313,0.156 10 false *a
*a Front view of wire harness connector
(to FOG FR Relay)


Remove the FOG FR relay.


b.

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

Standard Voltage:
Tester Connection Switch Condition Specified Condition
2 (FOG FR relay) - Body ground Ignition switch off 11 to 14 V
5 (FOG FR relay) - Body ground Ignition switch off 11 to 14 V



Result:
Proceed to
OK
NG



OK

5.CHECK HARNESS AND CONNECTOR (FOG FR RELAY - FOG LIGHT ASSEMBLY AND POWER DISTRIBUTION BOX ASSEMBLY)

NG

REPAIR OR REPLACE HARNESS OR CONNECTOR

5.CHECK HARNESS AND CONNECTOR (FOG FR RELAY - FOG LIGHT ASSEMBLY AND POWER DISTRIBUTION BOX ASSEMBLY)

*1: except Off Road Package

*2: for Off Road Package


a.

Remove the FOG FR relay.


b.

Disconnect the B18*1 or B11*2 fog light assembly LH connector.


c.

Disconnect the B17*1 or B10*2 fog light assembly RH connector.


d.

Disconnect the 6F power distribution box assembly connector.


e.

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

Standard Resistance:
except Off Road Package
Tester Connection Condition Specified Condition
3 (FOG FR relay) - B17-2 (B) Always Below 1 Ω
3 (FOG FR relay) - B18-2 (B) Always Below 1 Ω
1 (FOG FR relay) - 6F-28 Always Below 1 Ω
3 (FOG FR relay) or B17-2 (B) - Body ground Always 10 kΩ or higher
3 (FOG FR relay) or B18-2 (B) - Body ground Always 10 kΩ or higher
1 (FOG FR relay) or 6F-28 - Body ground Always 10 kΩ or higher

for Off Road Package
Tester Connection Condition Specified Condition
3 (FOG FR relay) - B10-2 (B) Always Below 1 Ω
3 (FOG FR relay) - B11-2 (B) Always Below 1 Ω
1 (FOG FR relay) - 6F-28 Always Below 1 Ω
3 (FOG FR relay) or B10-2 (B) - Body ground Always 10 kΩ or higher
3 (FOG FR relay) or B11-2 (B) - Body ground Always 10 kΩ or higher
1 (FOG FR relay) or 6F-28 - Body ground Always 10 kΩ or higher



Result:
Proceed to
OK
NG



OK

REPLACE POWER DISTRIBUTION BOX ASSEMBLY

Click herePower Source / Network>POWER DISTRIBUTION>MAIN BODY ECU>REMOVAL


NG

REPAIR OR REPLACE HARNESS OR CONNECTOR