WIPER / WASHER  WIPER AND WASHER SYSTEM  Wiper ECU Power Source Circuit  


DESCRIPTION

This circuit provides power to the windshield wiper relay assembly.

WIRING DIAGRAM

E296318
5.5,1.51 5.958,1.708 0.458,0.198 10 false WIG 5.49,0.573 5.948,0.771 0.458,0.198 10 false IG 5.5,1.99 5.958,2.188 0.458,0.198 10 false E 0.417,2.5 0.875,2.698 0.458,0.198 10 false 3C 5.406,2.49 5.865,2.688 0.458,0.198 10 false E95 5.417,2.708 6.906,3.24 1.49,0.531 10 false Windshield Wiper Relay Assembly 0.417,2.667 3.229,3.031 2.813,0.365 10 false Instrument Panel Junction Block Assembly 2.042,0.75 3.573,0.948 1.531,0.198 10 false WIPER NO.2 0.604,0.573 1.542,0.958 0.938,0.385 10 false from IG1 NO.2 Relay 2.021,1.719 3.552,1.917 1.531,0.198 10 false ECU-IG NO.4 0.615,1.521 1.542,1.958 0.927,0.438 10 false from IG1 NO.3 Relay 5.167,1.417 5.479,1.615 0.313,0.198 10 false 16 5.25,0.469 5.563,0.667 0.313,0.198 10 false 2 5.167,1.885 5.479,2.083 0.313,0.198 10 false 12 3.219,1.406 3.531,1.604 0.313,0.198 10 false 17 3.24,0.458 3.552,0.656 0.313,0.198 10 false 2

CAUTION / NOTICE / HINT

NOTICE:

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


PROCEDURE

1.CHECK HARNESS AND CONNECTOR (INSTRUMENT PANEL JUNCTION BLOCK ASSEMBLY - IG CIRCUIT AND BODY GROUND)
a.

Disconnect the E95 windshield wiper relay assembly connector.


b.

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

Standard Voltage:
Tester Connection Condition Specified Condition
E95-2 (IG) - Body ground Ignition switch ON 11 to 14 V
Ignition switch off Below 1 V
E95-16 (WIG) - Body ground Ignition switch ON 11 to 14 V
Ignition switch off Below 1 V



c.

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

Standard Resistance:
Tester Connection Condition Specified Condition
E95-12 (E) - Body ground Always Below 1 Ω



Result:
Proceed to
OK
NG



OK

PROCEED TO NEXT SUSPECTED AREA SHOWN IN PROBLEM SYMPTOMS TABLE

NG

2.CHECK HARNESS AND CONNECTOR (WINDSHIELD WIPER RELAY ASSEMBLY - INSTRUMENT PANEL JUNCTION BLOCK ASSEMBLY)
2.CHECK HARNESS AND CONNECTOR (WINDSHIELD WIPER RELAY ASSEMBLY - INSTRUMENT PANEL JUNCTION BLOCK ASSEMBLY)
a.

Disconnect the 3C instrument panel junction block assembly connector.


b.

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

Standard Resistance:
Tester Connection Condition Specified Condition
E95-2 (IG) - 3C-2 Always Below 1 Ω
E95-2 (IG) or 3C-2 - Body ground Always 10 kΩ or higher
E95-16 (WIG) - 3C-17 Always Below 1 Ω
E95-16 (WIG) or 3C-17 - Body ground Always 10 kΩ or higher



Result:
Proceed to
OK
NG



OK

REPLACE INSTRUMENT PANEL JUNCTION BLOCK ASSEMBLY

NG

REPAIR OR REPLACE HARNESS OR CONNECTOR