RM3090E _57 Power Source / Network _008434 NETWORKING _0047063 LIN COMMUNICATION SYSTEM J

NETWORKING  LIN COMMUNICATION SYSTEM  Rain Sensor LIN Communication Malfunction  


DESCRIPTION

The LIN communication of the components related to the rain sensor occurs between the rain sensor and windshield wiper relay assembly.

WIRING DIAGRAM

B339715E01
5.021,3.094 5.854,3.385 0.833,0.292 10 false Rain Sensor 0.5,1.708 2.75,1.99 2.25,0.281 10 false Windshield Wiper Relay Assembly 0.49,1.531 0.948,1.729 0.458,0.198 10 false G85 1.563,0.896 2.177,1.094 0.615,0.198 10 false MPX1 2.042,0.74 2.354,0.938 0.313,0.198 10 false 14 0.594,3.396 3.781,3.656 3.188,0.26 10 false : LIN Communication Line 5.604,2.354 5.917,2.552 0.313,0.198 10 false ES 5.063,2.135 5.521,2.333 0.458,0.198 10 false SIG 5.073,0.885 5.531,1.083 0.458,0.198 10 false MPX 4.854,0.74 5.01,0.938 0.156,0.198 10 false 1 2.229,2.115 3.708,2.313 1.479,0.198 10 false from IG1 NO. 1 Relay 3.802,2.344 4.75,2.594 0.948,0.25 10 false ECU-IG NO. 2 4.875,2.021 5.031,2.219 0.156,0.198 10 false 4 5.917,2.229 6.073,2.427 0.156,0.198 10 false 2 5,2.885 5.865,3.104 0.865,0.219 10 false Q5*1, Q10*2 0.146,2.615 1.688,2.844 1.542,0.229 10 false *1: for LHD 0.146,2.938 1.771,3.229 1.625,0.292 10 false *2: for RHD

CAUTION / NOTICE / HINT

NOTICE:
·

When using the GTS with the ignition switch off to troubleshoot:

Connect the GTS to the vehicle, and turn a courtesy light switch on and off at 1.5 second intervals until communication between the GTS and vehicle begins.

·

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



PROCEDURE

1.CHECK HARNESS AND CONNECTOR (RAIN SENSOR - WINDSHIELD WIPER RELAY ASSEMBLY)
a.

Disconnect the G85 windshield wiper relay assembly connector.


b.

Disconnect the Q5*1 or Q10*2 rain sensor connector.


*1: for LHD

*2: for RHD


c.

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

Standard Resistance:
for LHD
Tester Connection Condition Specified Condition
Q5-1 (MPX) - G85-14 (MPX1) Always Below 1 Ω
Q5-1 (MPX) - Body ground Always 10 kΩ or higher


for RHD
Tester Connection Condition Specified Condition
Q10-1 (MPX) - G85-14 (MPX1) Always Below 1 Ω
Q10-1 (MPX) - Body ground Always 10 kΩ or higher


Result:
Proceed to
OK
NG



OK

2.CHECK HARNESS AND CONNECTOR (RAIN SENSOR - BATTERY AND BODY GROUND)

NG

REPAIR OR REPLACE HARNESS OR CONNECTOR

2.CHECK HARNESS AND CONNECTOR (RAIN SENSOR - BATTERY AND BODY GROUND)
B339716C02
1.188,0.302 1.542,0.521 0.354,0.219 1.875,0.302 2.219,0.531 0.344,0.229 2.115,1.219 2.604,1.51 false 1.458,1.813 1.594,1.302 false 0.094,0.073 0.406,0.271 0.313,0.198 10 *a 2.677,1.448 3.135,1.646 0.458,0.198 10 SIG 1.344,1.844 1.656,2.042 0.313,0.198 10 ES 1.271,0.333 1.583,0.531 0.313,0.198 10 Q5 1.615,0.333 1.865,0.531 0.25,0.198 10 *A 2.281,0.333 2.594,0.531 0.313,0.198 10 *B 1.906,0.333 2.365,0.531 0.458,0.198 10 Q10
*A for LHD
*B for RHD
*a Front view wire harness connector
(to Rain Sensor)


a.

Disconnect the rain sensor connector.


b.

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

Standard Resistance:
for LHD
Tester Connection Condition Specified Condition
Q5-4 (SIG) - Body ground Always Below 1 Ω


for RHD
Tester Connection Condition Specified Condition
Q10-4 (SIG) - Body ground Always Below 1 Ω


c.

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

Standard Voltage:
for LHD
Tester Connection Condition Specified Condition
Q5-2 (ES) - Body ground Always 11 to 14V


for RHD
Tester Connection Condition Specified Condition
Q10-2 (ES) - Body ground Always 11 to 14V


Result:
Proceed to
OK
NG



OK

3.CHECK RAIN SENSOR

NG

REPAIR OR REPLACE HARNESS OR CONNECTOR

3.CHECK RAIN SENSOR
a.

Temporarily replace the rain sensor with a new or normally functioning one.


b.

Check the rain sensor function.

Click hereVehicle Exterior>WIPER / WASHER>WIPER AND WASHER SYSTEM(w/ Rain Sensor)>SYSTEM DESCRIPTION


Result:
Proceed to
Rain sensor function is normal
Rain sensor function is not normal



Rain sensor function is normal

END (RAIN SENSOR IS DEFECTIVE)

Rain sensor function is not normal

REPLACE WINDSHIELD WIPER RELAY ASSEMBLY