RM3660EC _56 Audio / Visual / Telematics _080754 PARK ASSIST / MONITORING _0470653 TOYOTA PARKING ASSIST-SENSOR SYSTEM(w/ Parking Support Brake System) J

PARK ASSIST / MONITORING  TOYOTA PARKING ASSIST-SENSOR SYSTEM(w/ Parking Support Brake System)  Clearance Warning ECU Power Source Circuit  


DESCRIPTION

This circuit provides power to operate the clearance warning ECU assembly.

WIRING DIAGRAM

E454345E08
0.135,0.448 1.698,0.75 1.563,0.302 10 false from IGR NO. 1 Relay 3.167,0.646 4.24,0.885 1.073,0.24 10 false ECU-IGR NO. 3 5.365,1.927 6.594,2.427 1.229,0.5 10 false Clearance Warning ECU Assembly 5.583,0.479 5.896,0.677 0.313,0.198 10 false IG 5.573,1.271 5.885,1.469 0.313,0.198 10 false E 5.281,1.135 5.594,1.333 0.313,0.198 10 false 31 5.354,0.354 5.667,0.552 0.313,0.198 10 false 1 5.365,1.76 5.677,1.958 0.313,0.198 10 false I24

CAUTION / NOTICE / HINT

NOTICE:

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


PROCEDURE

1.CHECK HARNESS AND CONNECTOR (CLEARANCE WARNING ECU ASSEMBLY POWER SOURCE)
a.

Disconnect the I24 clearance warning ECU assembly connector.


E409691C12
1.448,0.406 1.948,0.656 0.5,0.25 2.438,1.156 2.833,0.917 true 0.167,0.083 0.417,0.25 0.25,0.167 10 false *a 1.594,0.448 1.948,0.688 0.354,0.24 10 false I24 2.896,0.844 3.125,1.042 0.229,0.198 10 false IG
*a Component without harness connected
(to Clearance Warning ECU Assembly)


b.

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

Standard Voltage:
Tester Connection Switch Condition Specified Condition
I24-1 (IG) - Body ground Ignition switch ON 11 to 14 V
I24-1 (IG) - Body ground Ignition switch off Below 1 V



Result:
Proceed to
OK
NG



OK

2.CHECK HARNESS AND CONNECTOR (CLEARANCE WARNING ECU ASSEMBLY - BODY GROUND)

NG

REPAIR OR REPLACE HARNESS OR CONNECTOR

2.CHECK HARNESS AND CONNECTOR (CLEARANCE WARNING ECU ASSEMBLY - BODY GROUND)
a.

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

Standard Resistance:
Tester Connection Condition Specified Condition
I24-31 (E) - Body ground Always Below 1 Ω



Result:
Proceed to
OK
NG



OK

PROCEED TO NEXT SUSPECTED AREA SHOWN IN PROBLEM SYMPTOMS TABLE

Click hereAudio / Visual / Telematics>PARK ASSIST / MONITORING>TOYOTA PARKING ASSIST-SENSOR SYSTEM (w/ Parking Support Brake System)>PROBLEM SYMPTOMS TABLE


NG

REPAIR OR REPLACE HARNESS OR CONNECTOR