Toyota Tundra. Manual — part 419

SLIP indicator light:

SLIP INDICATOR LIGHT FAIL-SAFE CHART

TAIL indicator light:

TAIL INDICATOR LIGHT FAIL-SAFE CHART

Tire pressure warning light:

TIRE PRESSURE WARNING LIGHT FAIL-SAFE CHART

A/T OIL TEMP warning light:

Condition

Fail-safe Operation

Fail-safe

Deactivation

Condition

Headlight LO on request signal is
interrupted for 10 seconds during CAN
bus wake-up mode



Ignition switch is ON: HEAD
indicator light condition is
maintained



Ignition switch is OFF: HEAD
indicator light is off

Normal data is
received

Condition

Fail-safe Operation

Fail-safe

Deactivation

Condition

Frame data (including SLIP indicator
on/blink request signal) is interrupted for 0.9
seconds

SLIP indicator light condition is
maintained until ignition switch
OFF

Normal data is
received

Condition

Fail-safe Operation

Fail-safe

Deactivation

Condition

Taillight on request signal is interrupted
for 10 seconds during CAN bus wake-up
mode



Ignition switch is ON: TAIL
indicator light condition is
maintained



Ignition switch is OFF: TAIL
indicator light is off

Normal data is
received

Condition

Fail-safe Operation

Fail-safe

Deactivation

Condition

While ignition switch is ON, tire
pressure warning signals are
interrupted



Ignition switch is ON: Tire pressure
warning light blinks for 60 to 64
seconds



Ignition switch is OFF: Tire pressure
warning light is off

Normal data is
received

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A/T OIL TEMP WARNING LIGHT FAIL-SAFE CHART

CHARGE warning light:

CHARGE WARNING LIGHT FAIL-SAFE CHART

OIL PRESSURE warning light:

OIL PRESSURE WARNING LIGHT FAIL-SAFE CHART

4LO indicator light:

4LO INDICATOR LIGHT FAIL-SAFE CHART

WASHER warning light:

WASHER WARNING LIGHT FAIL-SAFE CHART

AUTO LSD indicator light:

AUTO LSD INDICATOR LIGHT FAIL-SAFE CHART

Condition

Fail-safe Operation

Fail-safe Deactivation

Condition

While ignition switch is ON, A/T OIL
TEMP warning signals are interrupted

Display condition is maintained
until ignition switch OFF

Normal data is received

Condition

Fail-safe Operation

Fail-safe Deactivation

Condition

While ignition switch is ON, CHARGE
warning signals are interrupted

Display condition is maintained
until ignition switch OFF

Normal data is received

Condition

Fail-safe Operation

Fail-safe Deactivation

Condition

While ignition switch is ON, OIL PRESSURE
warning light request signals are interrupted

Display condition is maintained
until ignition switch OFF

Normal data is
received

Condition

Fail-safe Operation

Fail-safe Deactivation

Condition

While ignition switch is ON, frame (including
B INDL 4 bit) is interrupted for 3 seconds

Display condition is maintained
until ignition switch OFF

Normal data is
received

Condition

Fail-safe Operation

Fail-safe Deactivation

Condition

While ignition switch is ON, washer fluid
level low signals are interrupted

Display condition is maintained
until ignition switch OFF

Normal data is received

Condition

Fail-safe Operation

Fail-safe Deactivation

Condition

While ignition switch is ON, frame
(including B ALSD bit) is interrupted

Display condition is maintained
until ignition switch OFF

Normal data is received

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VSC OFF indicator light:

VSC OFF INDICATOR LIGHT FAIL-SAFE CHART

DATA LIST / ACTIVE TEST

1. DATA LIST

HINT:

Using the Techstream to read the Data List allows the values or states of switches, sensors, actuators and
other items to be read without removing any parts. This non-intrusive inspection can be very useful
because intermittent conditions or signals may be discovered before parts or wiring is disturbed. Reading
the Data List information early in troubleshooting is one way to save diagnostic time.

a. Connect Techstream to the DLC3.

b. Turn the ignition switch ON.

c. Turn the tester ON.

d. Enter the following menus:

Techstream - Select: Body Electrical, Powertrain or Chassis / (desired system) / Data List.

e. According to the display on tester, read the "DATA LIST" or "Data List".

Techstream

Combination Meter:

TECHSTREAM COMBINATION METER RANGE REFERENCE

Condition

Fail-safe Operation

Fail-safe Deactivation

Condition

While ignition switch is ON, frame (including
B TRCW bit) is interrupted for 0.9 seconds

Display condition is maintained
until ignition switch OFF

Normal data is
received

NOTE:

In the table below, the values listed under "Normal Condition" are
reference values. Do not depend solely on these reference values when
deciding whether a part is faulty or not.

Tester Display

Measurement Item/Range

Normal Condition

Diagnostic Note

Tail Cancel SW*

TAIL cancel switch
condition/ON or OFF

ON: TAIL cancel
switch ON
OFF: TAIL cancel
switch OFF

-

ODO/TRIP Change

SW

Trip switch (ODO/TRIP
switch) condition/ON or
OFF

ON: Trip switch
(ODO/TRIP switch)
pushed
OFF: Trip switch

-

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(ODO/TRIP switch)
not pushed

Vehicle Speed

Meter

Vehicle speed/Min.: 0 (0),
Max.: 255(158)

Almost same as
actual vehicle speed
(when driving)

Unit: km/h (mph)

Engine Rpm

Engine speed/Min.: 0, Max.:
12750

Idling: 700 to 800

Unit: rpm

Coolant

Temperature

Engine coolant temperature/
Min.: -40 (-40), Max.: 140
(284)

After warming up: 80
to 105 (176 to 221)



Unit: °C (°F)



If value -40
(-40): sensor
circuit open



If value 140
(284): sensor
circuit
shorted

Washer Switch

Washer switch/ON or OFF

ON: Washer switch
ON
OFF: Washer switch
OFF

-

+B Voltage Value

+B voltage/Min.: 0, Max.:
25.5

Below 1 to 14

Unit: V

Integrated value for

Oil Maintenance

Integrated value for oil
maintenance warning/Min.:
0 (0), Max.: 25500 (41037)

0(0) to 25500 (41037) Unit: mile (km)

Fuel Input

Fuel sender gauge
input/Min.: 0, Max.: 127.5

Fuel sender input
value

Unit: L

Rheostat value

Light control rheostat switch
input/Min.: 0, Max.: 100

Light control rheostat
switch is Dark (0) -->
Bright (100)

Unit: %

Quantity of Outside

Light

Outside dimmer
output/Min.: 0, Max.: 100

0 to 100

Unit: %

Communication

ECM/Meter DTC 3

ECM communication stop
history/Rec or Unrec

Rec: DTC is recorded
Unrec: DTC is not
recorded

-

ECM ODO

(History 3)

ECM odometer
history/Min.: 0, Max.:
999999

With history: 0 to
999999 Without
history: ffffffh

-

Communication

ECM/Meter DTC 2

ECM communication stop
history/Rec or Unrec

Rec: DTC is recorded
Unrec: DTC is not
recorded

-

ECM ODO

(History 2)

ECM odometer
history/Min.: 0, Max.:
999999

With history: 0 to
999999 Without
history: ffffffh

-

Communication ECM communication stop

Rec: DTC is recorded
Unrec: DTC is not

-

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