Toyota Tundra (2015 year). Manual — part 230
TESTER DISPLAY
MEASUREMENT ITEM
REFERENCE VALUE
Vehicle Speed Grade
Vehicle speed grade
Min.: -25.10 m/s
2
, Max.: 24.90
m/s
2
Real Engine Torque
Real engine torque
Min.: -1024.0 Nm, Max.: 1023.0
Nm
TRAC/VSC Off Mode
TRAC/VSC Off Mode
Normal mode: Normal
TRAC OFF mode: TRC OFF
VSC OFF mode: VSC OFF
*: for 4WD
BRAKE CONTROL: VEHICLE STABILITY CONTROL SYSTEM: ...
Last Modified: 9-16-2014
6.6 U
Doc ID: RM000001DX003WX
Model Year: 2015
Model: Tundra
Prod Date Range: [08/2014 - ]
Title: BRAKE CONTROL: VEHICLE STABILITY CONTROL SYSTEM: FAIL-SAFE CHART; 2015 MY Tundra [08/2014
- ]
FAIL-SAFE CHART
1. FAIL SAFE OPERATION
If there is a problem with sensor signals or actuator systems, the skid control ECU prohibits power
signal) from the skid control ECU. As a result, it is as if the ABS, TRAC and VSC systems are not
installed in the vehicle.
The ABS control will be prohibited, but EBD control continues as much as possible. If EBD control
is impossible, the BRAKE warning light comes on to warn the driver
.
If system components have any malfunction before starting control, immediately stop the operation.
If system components have any malfunction during control, gradually stop the control so as not
to trigger a sudden change in vehicle conditions.
If it is impossible to control the systems, the warning/indicator lights come on or blink to inform
.
w/o Multi-information Display:
VSC control continues as much as possible while the TRAC OFF indicator light is on even if the
engine failed.
w/ Multi-information Display:
VSC control continues as much as possible while TRAC OFF is displayed on the multi-information
display even if the engine failed.
HINT:
MALFUNCTION AREA
CONTROL METHOD
ABS system
ABS, BA, TRAC, A-TRAC, VSC and AUTO LSD control is prohibited
BA system
ABS, BA, TRAC, A-TRAC, VSC and AUTO LSD control is prohibited
EBD system
ABS, EBD, BA, TRAC, A-TRAC, VSC and AUTO LSD control is prohibited
(b) TRAC, A-TRAC, VSC and AUTO LSD system:
HINT:
As for the TRAC, A-TRAC, VSC and AUTO LSD systems, different systems prohibit different controls
according to a malfunctioning part.
BRAKE CONTROL: VEHICLE STABILITY CONTROL SYSTEM: F...
MALFUNCTION AREA
CONTROL METHOD
Engine control system
Before control: Disables control
During control: Disables control (Enables VSC)
Brake control system
(VSC system)
Before control: Disables control
During control: Disables control
Brake control system
(TRAC, A-TRAC and AUTO LSD systems)
Before control: Disables control
During control: Disables control (by gradually ending control)
2. SYSTEM TEMPERATURE PROTECTION OPERATION
SYSTEM
INDICATOR CONDITION
TRAC or A-TRAC system
SLIP indicator light comes on
AUTO LSD system
SLIP indicator light comes on
AUTO LSD indicator light goes off
Abnormal brake pad temperature
TRAC OFF indicator light comes on
HINT:
If the systems automatically return to normal operating conditions, the SLIP indicator light goes off. As this
is not a malfunction, no DTC will be recorded.
BRAKE CONTROL: VEHICLE STABILITY CONTROL SYSTEM: F...
Last Modified: 9-16-2014
6.6 U
Doc ID: RM000000XGC02FX
Model Year: 2015
Model: Tundra
Prod Date Range: [08/2014 - ]
Title: BRAKE CONTROL: VEHICLE STABILITY CONTROL SYSTEM: DATA LIST / ACTIVE TEST; 2015 MY Tundra
[08/2014 - ]
DATA LIST / ACTIVE TEST
1. READ DATA LIST
HINT:
(a) Connect the Techstream to the DLC3.
(b) Turn the ignition switch to ON.
(c) Turn the Techstream on.
(d) Read the Data List according to the display on the Techstream.
ABS/VSC/TRAC:
TESTER DISPLAY
MEASUREMENT ITEM/RANGE
NORMAL CONDITION
DIAGNOSTIC NOTE
ABS Warning Light
ABS warning light / ON or OFF
ON: Warning light ON
OFF: Warning light OFF
-
VSC Warning Light
SLIP indicator light / ON or OFF
ON: Indicator light ON
OFF: Indicator light OFF
-
Brake Warning
Light
Brake warning light / ON or OFF
ON: Warning light ON
OFF: Warning light OFF
-
Slip Indicator Light VSC OFF indicator light / ON or OFF
ON: Indicator light ON
OFF: Indicator light OFF
-
Stop Light SW
Stop light switch / ON or OFF
ON: Brake pedal
depressed
OFF: Brake pedal
released
-
Parking Brake SW
Parking brake switch / ON or OFF
ON: Parking brake
applied
OFF: Parking brake
released
-
TRC(TRAC)/VSC
OFF SW
VSC OFF switch / ON or OFF
ON: VSC OFF switch ON
OFF: VSC OFF switch
OFF
-
Gear Position
Gear position information / P,N, R,
1st-8th, Fail, Not R
Actual gear position
-
Shift Information
Shift information / ON or OFF
ON: During gear change
OFF: Not during gear
change
-
BRAKE CONTROL: VEHICLE STABILITY CONTROL SYSTEM: ...
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