RM35X0E _56 Audio / Visual / Telematics _078377 AUDIO / VIDEO _0385463 AUDIO AND VISUAL SYSTEM(for Radio and Display Type) J

AUDIO / VIDEO  AUDIO AND VISUAL SYSTEM(for Radio and Display Type)  Parking Brake Switch Circuit  


DESCRIPTION

This circuit is from the skid control ECU (brake actuator assembly) to the radio and display receiver assembly.

WIRING DIAGRAM

E280960E27
3.948,1.521 4.104,1.719 0.156,0.198 10 false 1 5.229,1.49 5.448,1.688 0.219,0.198 10 false 20 5.51,1.635 6.052,1.854 0.542,0.219 10 false PKB 5.385,2.708 5.927,2.927 0.542,0.219 10 false O7 5.385,2.875 6.781,3.323 1.396,0.448 10 false Radio and Display Receiver Assembly 2.896,2.198 4.26,2.552 1.365,0.354 10 false Parking Brake Switch Assembly 2.885,2.01 3.219,2.177 0.333,0.167 10 false N10

PROCEDURE

1.CHECK VEHICLE SIGNAL (OPERATION CHECK)
a.
E278090

Display the "Vehicle Signal Check Mode" screen.

Click hereAudio / Visual / Telematics>AUDIO / VIDEO>AUDIO AND VISUAL SYSTEM (for Radio and Display Type)>OPERATION CHECK


b.

Check that the display changes between ON and OFF according to the parking brake operation.

OK:
Parking Brake Condition Display
Applied ON
Released OFF


HINT:

This display is updated once per second. As a result, it is normal for the display to lag behind the actual parking brake operation.



Result:
Proceed to
OK
NG



OK

PROCEED TO NEXT SUSPECTED AREA SHOWN IN PROBLEM SYMPTOMS TABLE

Click hereAudio / Visual / Telematics>AUDIO / VIDEO>AUDIO AND VISUAL SYSTEM (for Radio and Display Type)>PROBLEM SYMPTOMS TABLE


NG

2.CHECK HARNESS AND CONNECTOR (RADIO AND DISPLAY RECEIVER ASSEMBLY - PARKING BRAKE SWITCH ASSEMBLY)
2.CHECK HARNESS AND CONNECTOR (RADIO AND DISPLAY RECEIVER ASSEMBLY - PARKING BRAKE SWITCH ASSEMBLY)
a.

Disconnect the O7 radio and display receiver assembly connector.


b.

Disconnect the N10 parking brake switch assembly connector.


c.

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

Standard Resistance:
Tester Connection Condition Specified Condition
O7-20 (PKB) - N10-1 Always Below 1 Ω



Result:
Proceed to
OK
NG



OK

3.INSPECT PARKING BRAKE SWITCH ASSEMBLY

NG

REPAIR OR REPLACE HARNESS OR CONNECTOR