Toyota Tundra (2015 year). Manual — part 262

OK

(a) Remove the reservoir tank cap and strainer.

(b) Disconnect the A3 switch connector.

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

HINT:

A float is placed inside the reservoir. Its position can be changed by increasing or decreasing the brake

fluid level.

Standard Resistance:

TESTER CONNECTION

SWITCH CONDITION

SPECIFIED CONDITION

1 (+) - 2 (E)

Float up (Switch OFF)

10 kΩ or higher

1 (+) - 2 (E)

Float down (Switch ON)

Below 1 Ω

HINT:

If the result is as specified, adjust the brake fluid level to the MAX level after measuring the resistance.

NG

REPLACE BRAKE MASTER CYLINDER RESERVOIR

SUB-ASSEMBLY

7.

CHECK HARNESS AND CONNECTOR (COMBINATION METER - BRAKE FLUID LEVEL
WARNING SWITCH)

BRAKE CONTROL: VEHICLE STABILITY CONTROL SYSTEM: Br...

OK

(a) Disconnect the J28 meter connector.

(b) Disconnect the A3 switch connector.

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

Standard Resistance:

TESTER CONNECTION

CONDITION

SPECIFIED CONDITION

J28-14 (SW) - A3-1 (+)

Always

Below 1 Ω

J28-14 (SW) - Body ground

Always

10 kΩ or higher

A3-2 (E) - Body ground

Always

Below 1 Ω

NG

REPAIR OR REPLACE HARNESS OR CONNECTOR

8.

INSPECT COMBINATION METER

(a) Connect the Techstream to the DLC3.

(b) Turn the ignition switch to ON and the Techstream on.

.

Combination Meter

TESTER DISPLAY

TEST PART

CONTROL

RANGE

DIAGNOSTIC NOTE

BRAKE CONTROL: VEHICLE STABILITY CONTROL SYSTEM: Br...

OK

TESTER DISPLAY

TEST PART

CONTROL

RANGE

DIAGNOSTIC NOTE

Indicat. Lamp

Brake

Brake warning

light

ON or OFF

Perform the test with the vehicle stopped and engine

idling

(d) Check that the BRAKE warning light turns on and off in the combination meter using Techstream.

OK:

The BRAKE warning light turns on and off in accordance with the Techstream operation.

NG

GO TO METER / GAUGE SYSTEM

OK

REPLACE VSC ACTUATOR ASSEMBLY

9.

INSPECT PARKING BRAKE SWITCH ASSEMBLY

(a) Disconnect the A5 switch connector.

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

Standard Resistance:

TESTER CONNECTION

SWITCH CONDITION

SPECIFIED CONDITION

1 - Switch body ground

Parking brake switch ON

(Switch pin released)

Below 1 Ω

1 - Switch body ground

Parking brake switch OFF

(Switch pin pushed in)

10 kΩ or higher

NG

REPLACE PARKING BRAKE SWITCH ASSEMBLY

10.

CHECK HARNESS AND CONNECTOR (SKID CONTROL ECU - PARKING BRAKE SWITCH)

BRAKE CONTROL: VEHICLE STABILITY CONTROL SYSTEM: Br...

(a) Disconnect the A17 ECU connector.

(b) Disconnect the A5 switch connector.

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

Standard Resistance:

TESTER CONNECTION

CONDITION

SPECIFIED CONDITION

A17-14 (PKB2) - A5-1

Always

Below 1 Ω

A17-14 (PKB2) - Body ground

Always

10 kΩ or higher

NG

REPAIR OR REPLACE HARNESS OR CONNECTOR

OK

REPLACE VSC ACTUATOR ASSEMBLY

BRAKE CONTROL: VEHICLE STABILITY CONTROL SYSTEM: Br...