Toyota Tundra (2015 year). Manual — part 268
A
Last Modified: 9-16-2014
6.6 J
Doc ID: RM0000028G300SX
Model Year: 2015
Model: Tundra
Prod Date Range: [08/2014 - ]
Title: BRAKE CONTROL: VEHICLE STABILITY CONTROL SYSTEM: VSC OFF Indicator Light does not Come ON;
2015 MY Tundra [08/2014 - ]
VSC OFF Indicator Light does not Come ON
WIRING DIAGRAM
Refer to VSC OFF Indicator Light Remains ON
.
INSPECTION PROCEDURE
NOTICE:
When replacing the VSC actuator assembly, perform zero point calibration
.
PROCEDURE
1.
INSPECT CAN COMMUNICATION SYSTEM
(a) Check if a CAN communication system DTC is output
.
Result
RESULT
PROCEED TO
DTC is not output
A
DTC is output
B
B
GO TO CAN COMMUNICATION SYSTEM
2.
INSPECT CONNECTOR CONNECTION CONDITION
(a) Check the skid control ECU connector connection condition.
OK:
The connector is securely connected.
NG
CONNECT CONNECTOR CORRECTLY
BRAKE CONTROL: VEHICLE STABILITY CONTROL SYSTEM: V...
OK
OK
3.
CHECK HARNESS AND CONNECTOR (SKID CONTROL ECU - BATTERY AND BODY
GROUND)
(a) Disconnect the A17 ECU connector.
(b) Measure the voltage and resistance according to the value(s)
in the table below.
Standard Voltage:
TESTER CONNECTION
SWITCH
CONDITION
SPECIFIED
CONDITION
A17-8 (IG1) - Body
ground
Ignition switch ON
11 to 14 V
Standard Resistance:
TESTER CONNECTION
CONDITION SPECIFIED CONDITION
A17-16 (GND1) - Body ground
Always
Below 1 Ω
NG
REPAIR OR REPLACE HARNESS OR CONNECTOR
4.
PERFORM ACTIVE TEST USING TECHSTREAM (VSC OFF INDICATOR LIGHT)
(a) Connect the Techstream to the DLC3.
(b) Turn the ignition switch to ON.
(c) Turn the Techstream on.
(d) Select the Active Test mode and operate the VSC OFF indicator light using the Techstream.
ABS/VSC/TRAC
TESTER DISPLAY
TEST PART
CONTROL RANGE
DIAGNOSTIC NOTE
VSC OFF Indicator Light
VSC OFF indicator light
ON / OFF
Observe combination meter
BRAKE CONTROL: VEHICLE STABILITY CONTROL SYSTEM: V...
OK
OK
(e) Check that the VSC OFF indicator light turns on and off in the combination meter when using the
Techstream.
OK:
The VSC OFF indicator light turns on and off in accordance with the Techstream operation.
NG
GO TO METER / GAUGE SYSTEM
5.
INSPECT VSC OFF SWITCH
(a) Remove the VSC OFF switch
.
(b) Measure the resistance according to the value(s) in the table below.
Standard Resistance:
TESTER CONNECTION
SWITCH CONDITION
SPECIFIED CONDITION
6 - 9
Switch is pressed
Below 1 Ω
Switch is not pressed
10 kΩ or higher
NG
REPLACE VSC OFF SWITCH
6.
CHECK HARNESS AND CONNECTOR (SKID CONTROL ECU - VSC OFF SWITCH AND BODY
GROUND)
BRAKE CONTROL: VEHICLE STABILITY CONTROL SYSTEM: V...
(a) Disconnect the A17 ECU connector.
(b) Disconnect the J22 switch connector.
(c) Measure the resistance according to the value(s) in the table
below.
Standard Resistance:
TESTER CONNECTION
CONDITION
SPECIFIED CONDITION
A17-4 (CSW) - J22-9
Always
Below 1 Ω
A17-4 (CSW) - Body ground
Always
10 kΩ or higher
J22-6 - Body ground
Always
Below 1 Ω
NG
REPAIR OR REPLACE HARNESS OR CONNECTOR
OK
REPLACE VSC ACTUATOR ASSEMBLY
BRAKE CONTROL: VEHICLE STABILITY CONTROL SYSTEM: V...
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