RM35X0E _59 Vehicle Exterior _079256 LIGHTING (EXT) _0384398 LIGHTING SYSTEM(w/o Headlight ECU) J

LIGHTING (EXT)  LIGHTING SYSTEM(w/o Headlight ECU)  Parking Brake Switch Circuit  


DESCRIPTION

The main body ECU (multiplex network body ECU) detects the condition of the parking brake switch.

WIRING DIAGRAM

E270514E08
1.542,1.125 3.781,1.344 2.24,0.219 10 false Parking Brake Switch Assembly 1.542,0.969 2.021,1.156 0.479,0.188 10 false N10 2.708,0.625 2.938,0.813 0.229,0.188 10 false 1 5.042,0.583 5.313,0.771 0.271,0.188 10 false 38 5.927,0.698 6.448,0.906 0.521,0.208 10 false PKB 4.188,1.188 4.521,1.375 0.333,0.188 10 false 3A 4.188,1.323 5.813,1.719 1.625,0.396 10 false Instrument Panel Junction Block Assembly 4.917,2.031 5.25,2.219 0.333,0.188 10 false A 4.896,2.188 7.083,2.583 2.188,0.396 10 false Main Body ECU (Multiplex Network Body ECU) 5.656,0.583 5.927,0.771 0.271,0.188 10 false 12

PROCEDURE

1.READ VALUE USING GTS (PARKING BRAKE SWITCH)
a.

Connect the GTS to the DLC3.


b.

Turn the ignition switch to ON.


c.

Turn the GTS on.


d.

Enter the following menus: Body Electrical / Main Body / Data List.


e.

Read the Data List according to the display on the GTS.

Body Electrical > Main Body > Data List
Tester Display Measurement Item Range Normal Condition Diagnostic Note
Parking Brake SW Parking brake switch signal ON or OFF ON: Parking brake switch on
OFF: Parking brake switch off 		-
Body Electrical > Main Body > Data List
Tester Display
Parking Brake SW
50003 123 12
OK:

Normal conditions listed above are displayed.



Result:
Proceed to
OK
NG



OK

PROCEED TO NEXT SUSPECTED AREA SHOWN IN PROBLEM SYMPTOMS TABLE

Click hereVehicle Exterior>LIGHTING (EXT)>LIGHTING SYSTEM (w/o Headlight ECU)>PROBLEM SYMPTOMS TABLE


NG

2.INSPECT PARKING BRAKE SWITCH ASSEMBLY
2.INSPECT PARKING BRAKE SWITCH ASSEMBLY
a.

Remove the parking brake switch assembly.

Click hereBrake>PARKING BRAKE>PARKING BRAKE SWITCH>REMOVAL


b.

Inspect the parking brake switch assembly.

Click hereBrake>PARKING BRAKE>PARKING BRAKE SWITCH>INSPECTION


Result:
Proceed to
OK
NG



OK

3.CHECK HARNESS AND CONNECTOR (PARKING BRAKE SWITCH ASSEMBLY - INSTRUMENT PANEL JUNCTION BLOCK ASSEMBLY)

NG

REPLACE PARKING BRAKE SWITCH ASSEMBLY

Click hereBrake>PARKING BRAKE>PARKING BRAKE SWITCH>REMOVAL


3.CHECK HARNESS AND CONNECTOR (PARKING BRAKE SWITCH ASSEMBLY - INSTRUMENT PANEL JUNCTION BLOCK ASSEMBLY)
a.

Disconnect the N10 parking brake switch assembly connector.


b.

Disconnect the 3A instrument panel junction block assembly connector.


c.

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

Standard Resistance:
Tester Connection Condition Specified Condition
N10-1 - 3A-38 Always Below 1 Ω
N10-1 - Body ground Always 10 kΩ or higher



Result:
Proceed to
OK
NG



OK

4.INSPECT INSTRUMENT PANEL JUNCTION BLOCK ASSEMBLY

NG

REPAIR OR REPLACE HARNESS OR CONNECTOR

4.INSPECT INSTRUMENT PANEL JUNCTION BLOCK ASSEMBLY
a.

Remove the instrument panel junction block assembly.

for LHD:

Click herePower Source / Network>POWER DISTRIBUTION>MAIN BODY ECU (for LHD)>REMOVAL

for RHD:

Click herePower Source / Network>POWER DISTRIBUTION>MAIN BODY ECU (for RHD)>REMOVAL

E416754C02
1.51,0.24 1.958,0.49 0.448,0.25 4.844,0.323 5.292,0.573 0.448,0.25 4.25,1.396 4.458,1.396 4.458,1.396 4.74,1.021 true 0.188,0.135 0.5,0.292 0.313,0.156 10 false *a 1.656,0.271 1.906,0.469 0.25,0.198 10 false 3A 5,0.375 5.25,0.573 0.25,0.198 10 false A 3.917,1.313 4.417,1.563 0.5,0.25 10 false PKB
*a Component without harness connected
(Instrument Panel Junction Block Assembly) 		- -



b.

Remove the main body ECU (multiplex network body ECU) from the instrument panel junction block assembly.


c.

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

Standard Resistance:
Tester Connection Condition Specified Condition
A-12 (PKB) - 3A-38 Always Below 1 Ω



Result:
Proceed to
OK
NG



OK

REPLACE MAIN BODY ECU (MULTIPLEX NETWORK BODY ECU)

for LHD:

Click herePower Source / Network>POWER DISTRIBUTION>MAIN BODY ECU (for LHD)>REMOVAL

for RHD:

Click herePower Source / Network>POWER DISTRIBUTION>MAIN BODY ECU (for RHD)>REMOVAL


NG

REPLACE INSTRUMENT PANEL JUNCTION BLOCK ASSEMBLY

for LHD:

Click herePower Source / Network>POWER DISTRIBUTION>MAIN BODY ECU (for LHD)>REMOVAL

for RHD:

Click herePower Source / Network>POWER DISTRIBUTION>MAIN BODY ECU (for RHD)>REMOVAL