Toyota Tundra (2015 year). Manual — part 1085
TESTER DISPLAY
MEASUREMENT ITEM
DIAGNOSTIC NOTE
VG circuit open or shorted.
If 160.0 gm/sec. or more:
E2G circuit open.
Atmosphere
Pressure
Atmospheric pressure
-
MAP
Intake manifold
pressure
-
Coolant Temp
Engine coolant
temperature
If -40°C (-40°F), sensor circuit open.
If 140°C (284°F) or more, sensor circuit shorted.
Intake Air
Intake air
temperature
If -40°C (-40°F), sensor circuit open.
If 140°C (284°F) or more, sensor circuit shorted.
Engine Run Time
Accumulated engine
running time
-
Initial Engine
Coolant Temp
Engine coolant
temperature at
engine start
-
Coolant Temp
Variation after
Engine Start
Coolant temp
variation after engine
start
-
Initial Intake Air
Temp
Intake air
temperature at
engine start
-
Intake Air Temp
Variation after
Engine Start
Intake air temp
variation after engine
start
-
Battery Voltage
Battery voltage
-
Accel Sens. No.1
Volt %
Absolute Accelerator
Pedal Position (APP)
No. 1
-
Accel Sens. No.2
Volt %
Absolute APP No. 2
-
Throttle Sensor
Volt %
Throttle sensor
position
-
Throttl Sensor #2
Volt %
Throttle sensor
position #2
-
Throttle Sensor
Position
Throttle position
-
Throttle Motor
DUTY
Throttle actuator
-
Throttle Position
Throttle position
For use when engine stall, starting problems or rough idle is present.
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TESTER DISPLAY
MEASUREMENT ITEM
DIAGNOSTIC NOTE
ISC Flow
Flow rate calculated
using information
from each sensor
For use when engine stall, starting problems or rough idle is present.
ISC Position
Requested opening
amount calculated
using ISC control
For use when engine stall, starting problems or rough idle is present.
ISC Feedback
Value
ISC feedback
compensation
amount
For use when engine stall, starting problems or rough idle is present.
ISC Learning
Value
ISC learned
compensation
amount
For use when engine stall, starting problems or rough idle is present.
Electric Load
Feedback Val
Compensation flow
rate according to
electrical load
For use when engine stall, starting problems or rough idle is present.
Air Conditioner FB
Val
Compensation flow
rate according to air
conditioner load
For use when engine stall, starting problems or rough idle is present.
PS Feedback Val
Compensation flow
rate according to
power steering load
For use when engine stall, starting problems or rough idle is present.
Low Revolution
Control
Low engine speed
control operation
state
For use when engine stall, starting problems or rough idle is present.
N Range Status
Shift lever N status
For use when engine stall, starting problems or rough idle is present.
Eng Stall Control
FB Flow
Intake air
compensation flow
rate
For use when engine stall, starting problems or rough idle is present.
Deposit Loss Flow
Flow loss due to
deposits
For use when engine stall, starting problems or rough idle is present.
Fuel Pump Duty
Fuel pump duty
-
Injector (Port)
Injection period of
No. 1 cylinder
-
Injection Volum
(Cylinder 1)
Injection volume
-
Vacuum Pump
Key-off EVAP system
leak detection pump
status
Refer to EVAP System
.
Current Fuel Type
-
EVAP (Purge) VSV
EVAP purge VSV duty
ratio
-
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TESTER DISPLAY
MEASUREMENT ITEM
DIAGNOSTIC NOTE
Evap Purge Flow
air volume
-
Purge Density
Learn Value
Learning value of
purge density
-
EVAP System
Vent Valve
Key-off EVAP system
vent valve status
-
EVAP Purge VSV
EVAP purge VSV
-
Purge Cut VSV
Duty
Purge cut VSV duty
-
Target Air-Fuel
Ratio
Ratio compared to
stoichiometric level
-
AF Lambda B1S1
Fuel trim at A/F
sensor
-
AF Lambda B2S1
Fuel trim at A/F
sensor
-
AFS Voltage B1S1
AFS Voltage B2S1
A/F sensor output
voltage
Performing Control the Injection Volume or Control the Injection
AFS Current B1S1 A/F sensor current
-
AFS Current B2S1 A/F sensor current
-
A/F Heater Duty
#1
A/F heater duty ratio
(for Bank 1)
-
A/F Heater Duty
#2
A/F heater duty ratio
(for Bank 2)
-
O2S B1S2
O2S B2S2
Heated oxygen
sensor output voltage
Performing Control the Injection Volume or Control the Injection
O2S Impedance
B1S2
O2S Impedance
B2S2
Sub heated oxygen
sensor impedance
(for Sensor 2)
-
O2 Heater B1S2
O2 Heater B2S2
Heated oxygen
sensor heater (for
Sensor 2)
-
O2 Heater Curr
Val B1S2
O2 Heater Curr
Val B2S2
Heated oxygen
sensor current (for
Sensor 2)
-
Short FT #1
Short-term fuel trim
Short-term fuel compensation used to maintain air-fuel ratio at
stoichiometric air-fuel ratio.
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TESTER DISPLAY
MEASUREMENT ITEM
DIAGNOSTIC NOTE
Long FT #1
Long-term fuel trim
Overall fuel compensation carried out in long-term to
Air fuel ratio feedback leaning is divided up according to
the engine operating range (engine speed x load), and
separate values are stored for each operating range.
"Long FT #1" indicates the learned value for the current
operating range. [A/F Learn Value Idle #1], [A/F Learn
Value Low #1], [A/F Learn Value Mid1 #1], [A/F Learn
Value Mid2 #1] and [A/F Learn Value High #1] indicate
the leaned values for the different operating ranges. The
learned value that is the same as "Long FT #1" indicates
the current engine operating range.
A/F Learn Value
Idle #1
Air fuel ratio learned
value for idling (for
Bank 1)
Learning is performed when idling with the engine warmed up
(engine coolant temperature is 75°C [167°F] or higher).
A/F Learn Value
Low #1
Air fuel ratio learned
value for low engine
loads (for Bank 1)
Learning is performed when driving with the engine warmed up
(engine coolant temperature is 75°C [167°F] or higher) and
A/F Learn Value
Mid1 #1
Air fuel ratio learned
value for mid-sized
engine loads 1 (for
Bank 1)
Learning is performed when driving with the engine warmed up
(engine coolant temperature is 75°C [167°F] or higher) and
operating in the mid-size load range closer to the low load range
Mid2 #1
Air fuel ratio learned
value for mid-sized
engine loads 2 (for
Bank 1)
Learning is performed when driving with the engine warmed up
(engine coolant temperature is 75°C [167°F] or higher) and
operating in the mid-size load range closer to the high load range
High #1
Air fuel ratio learned
value for high engine
loads (for Bank 1)
Learning is performed when driving with the engine warmed up
(engine coolant temperature is 75°C [167°F] or higher) and
Total FT #1
Total fuel trim
-
Short FT #2
Short-term fuel trim
Short-term fuel compensation used to maintain air-fuel ratio at
stoichiometric air-fuel ratio.
Long FT #2
Long-term fuel trim
Overall fuel compensation carried out in long-term to
Air fuel ratio feedback leaning is divided up according to
the engine operating range (engine speed x load), and
separate values are stored for each operating range.
"Long FT #2" indicates the learned value for the current
operating range. [A/F Learn Value Idle #2], [A/F Learn
Value Low #2], [A/F Learn Value Mid1 #2], [A/F Learn
Value Mid2 #2] and [A/F Learn Value High #2] indicate
the leaned values for the different operating ranges. The
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