Toyota Tundra (2015 year). Manual — part 228
TERMINAL NO.
(SYMBOLS)
WIRING
COLOR
TERMINAL DESCRIPTION
CONDITION
SPECIFIED
CONDITION
A17-26 (VCP) - A17-27
(E3)
G - BE
Pedal stroke sensor (Delta S
sensor) power source
Always
150 to 200 Ω
A17-23 (PSNC) - A17-21
(STS)
L - SB
Brake booster micro switch
(Normal Close) signal input
Always
Below 1 Ω
A17-24 (PSNO) - A17-21
(STS)
LG - SB
Brake booster micro switch
(Normal Open) signal input
Brake pedal
depressed
Below 1 Ω
for 4WD:
A17-22 (VYS) -
P16-3 (VYS)
R - R
Yaw rate sensor power source
Always
Below 1 Ω
for 2WD:
A17-22 (VYS) -
P15-3 (VYS)
A17-21 (STS) - A17-23
(PSNC)
SB - L
Brake booster micro switch
power source
Always
Below 1 Ω
for 4WD:
A17-19 (SS2) -
P16-1 (YAW2)
W - W
Yaw rate sensor signal line
Always
Below 1 Ω
for 2WD:
A17-19 (SS2) -
P15-1 (YAW2)
for 4WD:
A17-18 (SS1) -
P16-2 (YAW1)
B - B
Yaw rate sensor signal line
Always
Below 1 Ω
for 2WD:
A17-18 (SS1) -
P15-2 (YAW1)
A17-17 (BSTP) - A17-31
(BST)
V - B
Brake booster solenoid power
source
Always
1 to 2 Ω
A17-46 (FL-) - b2-1
LG - B
Front wheel LH speed signal line
Always
Below 1 Ω
A17-45 (FL+) - b2-2
V - W
Front wheel LH speed signal line
Always
Below 1 Ω
A17-44 (BSW) - Body
ground
L - Body
ground
Stop light control relay (BRK NO.
2) drive input
Ignition switch ON
11 to 14 V
A17-43 (RR+) - b3-2
B - W
Rear wheel RH speed signal line
Always
Below 1 Ω
A17-42 (RR-) - b3-1
W - B
Rear wheel RH speed signal line
Always
Below 1 Ω
BRAKE CONTROL: VEHICLE STABILITY CONTROL SYSTEM: ...
TERMINAL NO.
(SYMBOLS)
WIRING
COLOR
TERMINAL DESCRIPTION
CONDITION
SPECIFIED
CONDITION
A17-38 (STP) - Body
ground
B - Body
ground
Stop light switch signal input
Brake pedal
depressed
8 to 14 V
Brake pedal
released
Below 1.5 V
A17-37 (RL-) - b4-1
P - B
Rear wheel LH speed signal line
Always
Below 1 Ω
A17-36 (RL+) - b4-2
L - W
Rear wheel LH speed signal line
Always
Below 1 Ω
A17-34 (FR+) - b1-2
BE - W
Front wheel RH speed signal line Always
Below 1 Ω
A17-33 (FR-) - b1-1
G - B
Front wheel RH speed signal line Always
Below 1 Ω
A17-32 (+BS) - Body
ground
R - Body
ground
Solenoid relay power supply
Always
11 to 14 V
BRAKE CONTROL: VEHICLE STABILITY CONTROL SYSTEM: ...
Last Modified: 9-16-2014
6.6 D
Doc ID: RM000001DWV03WX
Model Year: 2015
Model: Tundra
Prod Date Range: [08/2014 - ]
Title: BRAKE CONTROL: VEHICLE STABILITY CONTROL SYSTEM: DIAGNOSIS SYSTEM; 2015 MY Tundra
[08/2014 - ]
DIAGNOSIS SYSTEM
1. DIAGNOSIS
(a) If the skid control ECU detects a malfunction, the ABS and BRAKE warning lights and the SLIP indicator
light will come on to warn the driver.
HINT:
.
2. WARNING LIGHT AND INDICATOR LIGHT BULB CHECK
(a) Release the parking brake lever.
CAUTION:
When releasing the parking brake, set the chocks to hold the vehicle for safety.
HINT:
TRAC OFF*, SLIP and AUTO LSD indicator lights come on for approximately 3 seconds.
HINT:
If the warning light and indicator light check result is not normal, proceed to troubleshooting for the ABS
and BRAKE warning light circuits, and the VSC OFF, TRAC OFF*, SLIP, and AUTO LSD indicator light
circuits.
If the indicator remains on, proceed to troubleshooting for the light circuit below.
*: w/o Multi-information Display
TROUBLE AREA
SEE PROCEDURE
ABS warning light circuit
BRAKE warning light circuit
TRAC OFF indicator light circuit
VSC OFF indicator light circuit
SLIP indicator light circuit
AUTO LSD indicator light circuit
BRAKE CONTROL: VEHICLE STABILITY CONTROL SYSTEM: ...
Last Modified: 9-16-2014
6.6 D
Doc ID: RM000001DWW02YX
Model Year: 2015
Model: Tundra
Prod Date Range: [08/2014 - ]
Title: BRAKE CONTROL: VEHICLE STABILITY CONTROL SYSTEM: DTC CHECK / CLEAR; 2015 MY Tundra
[08/2014 - ]
DTC CHECK / CLEAR
1. DTC CHECK / CLEAR (WHEN USING SST CHECK WIRE)
(a) Check DTC.
(2) Turn the ignition switch to ON.
(3) Read the DTC from the ABS warning light and SLIP indicator
light on the combination meter.
HINT:
If no code appears, inspect the TC and CG terminal circuit, and
the ABS warning light and SLIP indicator light circuits.
TROUBLE AREA
SEE PROCEDURE
TC and CG terminal circuit
ABS warning light circuit
or
SLIP indicator light circuit
or
BRAKE CONTROL: VEHICLE STABILITY CONTROL SYSTEM: D...
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