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Diagnostics - Service Specification -
No.)
(E11-3)
Tool Setting
5 V/DIV., 1 msec./DIV.
Condition
Idle after engine warm-up
HINT: The duty ratio varies depending on the throttle opening operation.
Waveform 2 (Reference)
Throttle actuator negative terminal Item
Content
Symbols (Terminal No.)
M- (E12-4) - ME01 (E11-3)
Tool Setting
5 V/DIV., 1 msec./DIV.
Condition
Idle after engine warm-up
HINT: The duty ratio varies depending on the throttle opening operation.
Page 6 of 13
Diagnostics - Service Specification -
Waveform 3 (Reference)
(a) Camshaft position sensor Item
Content
Symbols (Terminal No.)
(a) G2+ (E12-26) NE- (E12-34)
Tool Setting
5 V/DIV., 20 msec./DIV.
Condition
Idle after engine warm-up
(b) Crankshaft position sensor Item
Content
Symbols (Terminal No.)
(b) NE+ (E12-27) NE- (E12-34)
Tool Setting
5 V/DIV., 20 msec./DIV.
Condition
Idle after engine warm-up
HINT: The wavelength becomes shorter as engine speed increases.
Waveform 4 (Reference)
Page 7 of 13
Diagnostics - Service Specification -
Vehicle speed signal Item
Content
Symbols (Terminal No.)
SPD (E10-8) - E1 (E12-3)
Tool Setting
2 V/DIV., 10 msec./DIV.
Condition
Driving at 40 km/h (25 mph)
HINT: The wavelength becomes shorter as vehicle speed increases.
Waveform 5 (Reference)
(a) Igniter IGT signal (from ECM to igniter) Item
Content
Symbols (Terminal No.)
(a) IGT1 (E12-17) to IGT4 (E12-14) - E1 (E12-3)
Tool Setting
2 V/DIV., 20 msec./DIV.
Condition
Idling
Page 8 of 13
Diagnostics - Service Specification -
(b) Igniter IGF signal (from igniter to ECM) Item
Content
Symbols (Terminal No.)
(b) IGF1 (E12-23) E1 (E12-3)
Tool Setting
2 V/DIV., 20 msec./DIV.
Condition
Idling
HINT: The wavelength becomes shorter as engine speed increases.
Waveform 6 (Reference)
Fuel injector Item
Content
Symbols (Terminal No.)
#10 (E11-6) to #40 (E11-1) - E01 (E12-7)
Tool Setting
20 V/DIV., 20 msec./DIV.
Condition
Idling
HINT: The wavelength becomes shorter as engine speed increases.
Waveform 7 (Reference)
Page 9 of 13
Diagnostics - Service Specification -
Condition
engine warm-up
HINT: VVT OCV DUTY (%) = A/B x 100
Waveform 8 (Reference)
Knock sensor Item
Content
Symbols (Terminal No.)
KNK1 (E12-29) EKNK (E12-30)
Tool Setting
0.01 to 10 V/DIV., 0.01 to 10 msec./DIV.
Condition
After warming up engine, keep engine speed at 4,000 rpm
HINT: The wavelength becomes shorter as engine speed increases. The waveform and amplitudes displayed differ slightly depending on the vehicle.
Waveform 9 (Reference)
Page 10 of 13
Diagnostics - Service Specification -
Page 11 of 13
Heated oxygen (HO2) sensor (sensor 2) Item
Content
Symbols (Terminal No.)
OX1B (E12-25) - E2 (E12-28)
Tool Setting
0.2 V/DIV., 200 msec./DIV.
Condition
Engine maintained at 2,500 rpm when engine warmed up
HINT: In the Data List, item O2S B1 S2 shows the ECM input values from the rear HO2 sensor (sensor 2).
Waveform 10 (Reference)
Diagnostics - Service Specification -
Page 12 of 13
Purge VSV Item
Content
Symbols (Terminal No.)
PRG (E11-23) - E01 (E12-7)
Tool Setting
10 V/DIV., 20 msec./DIV.
Condition
Idling
HINT: If the waveform is not similar to the illustration, check the waveform again after idling for 10 minutes or more.
Waveform 11 (Reference)
Terminal DI of air injection control driver Item
Content
Symbols (Terminal No.)
AIDI (E11-20) - E1 (E12-3)
Tool Setting
5 V/DIV., 50 msec./DIV.
Condition
Air injection system operates
HINT: The wavelength changes when the air injection control driver detects malfunction in the air injection system (Refer to 2TR-FE ENGINE CON TROL SYSTEM > SFI SYSTEM > P1613(201106 ))
Waveform 12 (Reference)
Diagnostics - Service Specification -
Tool Setting
0.2 V/DIV., 200 msec./DIV.
Condition
Engine maintained at 2,500 rpm when engine warmed up
Page 13 of 13
HINT: In the Data List, item O2S B1 S1 shows the ECM input values from the rear HO2 sensor (sensor 1).
