Toyota Tundra (2015 year). Manual — part 1481
TERMINAL NO. (SYMBOL)
TOOL SETTING
CONDITION
(a) D74-37 (IGT3) - D74-81
(E1)
2 V/DIV., 20
msec./DIV.
Idling
(a) D74-34 (IGT4) - D74-81
(E1)
2 V/DIV., 20
msec./DIV.
Idling
(a) D74-35 (IGT5) - D74-81
(E1)
2 V/DIV., 20
msec./DIV.
Idling
(a) D74-36 (IGT6) - D74-81
(E1)
2 V/DIV., 20
msec./DIV.
Idling
(a) D74-38 (IGT7) - D74-81
(E1)
2 V/DIV., 20
msec./DIV.
Idling
(a) D74-39 (IGT8) - D74-81
(E1)
2 V/DIV., 20
msec./DIV.
Idling
(b) D74-104 (IGF1) - D74-81
(E1)
2 V/DIV., 20
msec./DIV.
Idling
(b) D74-105 (IGF2) - D74-81
(E1)
2 V/DIV., 20
msec./DIV.
Idling
HINT:
The wavelength becomes shorter as engine speed increases.
(h) WAVEFORM 7:
Purge VSV
TERMINAL NO. (SYMBOL)
TOOL SETTING
CONDITION
D74-63 (PRG) - D74-81
(E1)
10 V/DIV., 20
msec./DIV.
Idling
HINT:
If the waveform is not similar to the illustration, check the
waveform again after idling for 10 minutes or more.
(i) WAVEFORM 8:
Vehicle speed signal
TERMINAL NO.
(SYMBOL)
TOOL SETTING
CONDITION
A24-13 (SPD) -
D74-81 (E1)
2 V/DIV., 20
msec./DIV.
Driving at 20 km/h
(12 mph)
HINT:
The wavelength becomes shorter as the vehicle speed
increases.
3UR-FBE ENGINE CONTROL SYSTEM: SFI SYSTEM: TERMINA...
(j) WAVEFORM 9:
Throttle actuator positive terminal
TERMINAL NO.
(SYMBOL)
TOOL SETTING
CONDITION
D74-19 (M+) - D74-82
(ME01)
5 V/DIV., 1
msec./DIV.
Idling with warm
engine
HINT:
The duty ratio varies depending on the throttle actuator
operation.
(k) WAVEFORM 10:
Throttle actuator negative terminal
TERMINAL NO.
(SYMBOL)
TOOL SETTING
CONDITION
D74-18 (M-) - D74-82
(ME01)
5 V/DIV., 1
msec./DIV.
Idling with warm
engine
HINT:
The duty ratio varies depending on the throttle actuator
operation.
(l) WAVEFORM 11:
Engine speed signal
TERMINAL NO. (SYMBOL)
TOOL SETTING
CONDITION
A24-15 (TACH) - D74-81
(E1)
5 V/DIV., 10
msec./DIV.
Idling
HINT:
The wavelength becomes shorter as the engine speed
increases.
(m) WAVEFORM 12:
CAN communication signal
TERMINAL NO.
(SYMBOL)
TOOL SETTING
CONDITION
A24-10 (CANH) -
D74-81 (E1)
1 V/DIV., 10
µsec./DIV.
Engine stops and
ignition switch ON
HINT:
The waveform varies depending on the CAN communication
signal.
3UR-FBE ENGINE CONTROL SYSTEM: SFI SYSTEM: TERMINA...
(n) WAVEFORM 13:
CAN communication signal
TERMINAL NO.
(SYMBOL)
TOOL SETTING
CONDITION
A24-11 (CANL) -
D74-81 (E1)
1 V/DIV., 10
µsec./DIV.
Engine stops and
ignition switch ON
HINT:
The waveform varies depending on the CAN communication
signal.
(o) WAVEFORM 14:
Crankshaft position sensor and camshaft position sensor
TERMINAL NO.
(SYMBOL)
TOOL SETTING
CONDITION
CH1: D74-110 (NE+) -
D74-111 (NE-)
5 V/DIV., 20
msec./DIV.
Idle after engine
warmed up
CH2: D74-90 (G2) -
D74-89 (G2-)
5 V/DIV., 20
msec./DIV.
Idle after engine
warmed up
HINT:
The wavelength becomes shorter as the engine speed
increases.
(p) WAVEFORM 15:
(SYMBOL)
TOOL SETTING
CONDITION
D74-30 (AIDI) -
D74-81 (E1)
5 V/DIV., 50
msec./DIV.
Performing system check using
Techstream (secondary air
injection check)
D74-29 (AID2) -
D74-81 (E1)
5 V/DIV., 50
msec./DIV.
Performing system check using
Techstream (secondary air
injection check)
HINT:
The wavelength changes when the air injection control driver
detects malfunctions in the secondary air injection system
.
3UR-FBE ENGINE CONTROL SYSTEM: SFI SYSTEM: TERMINA...
(q) WAVEFORM 16:
Crankshaft position sensor and VVT sensor (for exhaust
side)
TERMINAL NO.
(SYMBOL)
TOOL SETTING
CONDITION
(a) D74-110 (NE+) -
D74-111 (NE-)
5 V/DIV., 20
msec./DIV.
Idle after engine
warmed up
(b) D74-69 (EV1+) -
D74-68 (EV1-)
5 V/DIV., 20
msec./DIV.
Idle after engine
warmed up
(c) D74-64 (EV2+) -
D74-65 (EV2-)
5 V/DIV., 20
msec./DIV.
Idle after engine
warmed up
HINT:
The wavelength becomes shorter as engine speed increases.
3UR-FBE ENGINE CONTROL SYSTEM: SFI SYSTEM: TERMINA...
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