Toyota Celica 2005 Repair Manual page 504

7. DATA LIST
HINT:
Using the hand−held tester DATA LIST allows switch, sensor, actuator and other item values to be read with-
out removing any parts. Reading the DATA LIST early in troubleshooting is one way to shorten labor time.
NOTICE:
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.
(a) Warm up the engine.
(b) Turn the ignition switch OFF.
(c) Connect the hand−held tester or the OBD II scan tool to the DLC3.
(d) Turn the ignition switch ON.
(e) Push the "ON" button of the hand−held tester.
(f) Enter the following menus: DIAGNOSIS / ENHANCED OBD II / DATA LIST.
(g) According to the display on tester, read the "DATA LIST".
Hand−held Tester Display
INJECTOR
IGN ADVANCE
IAC DUTY RATIO
CALC LOAD
MAF
ENGINE SPD
COOLANT TEMP
INTAKE AIR
THROTTLE POS
CTP SW
VEHICLE SPD
2005 CELICA (RM1131U)
DIAGNOSTICS
Measurement Item/Range
(Display)
Injection period of the No. 1 cylin-
der/
Min.: 0 ms, Max: 32.64 ms
Ignition timing advance for No. 1
cylinder/
Min.: −64 deg., Max.: 63.5 deg.
Intake air control valve duty ratio
Opening ratio rotary solenoid type
ISC valve/
Min.: 0 %, Max.: 99 %
Calculated load by ECM/
Min.: 0 %, Max.: 100 %
Air flow rate from MAF sensor/
Min.: 0 gm/s, Max.: 655 gm/s
Engine speed/
Min.: 0 rpm, Max.: 16,383 rpm
Coolant temperature/
Min.: −40 _C, Max.: 140 _C
Intake air temperature/
Min.: −40 _C, Max.: 140 _C
Absolute throttle position sensor/
Min.: 0 %, Max.: 100 %
Closed throttle position switch/
ON or OFF
Vehicle speed/
Min.: 0 km/h, Max.: 255 km/h
− ENGINE (2ZZ−GE)
Normal Condition *1
Idling: 0.8 to 2.0 ms
Idling: BTDC 4 to 12°
Idling: 25 to 45 %
Running without load (2,500 rpm):
25 to 45 %
Idling: 9.1 to 20.0 %
Running without load (2,500 rpm):
11.0 to 23.0 %
Idling: 1.5 to 5.0 gm/s.
Racing without load (2,500 rpm):
5.0 to 15.0 gm/s
Idling: 750 to 850 rpm
After warming up: 80 to 95°C (176
to 203°F)
Equivalent to Ambient Tempera-
ture
Throttle fully closed: 8 to 18 %
Throttle fully open: 64 to 98 %
Throttle fully closed: ON
Throttle open: OFF
Vehicle stopped: 0 mph (0 km/h)
503
DI−305
Diagnostic Note
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If the value is approximately 0.0
gm/s:
S Mass air flow meter power
source circuit open
S VG circuit open or short
If the value is 160.0 gm/s or more:
S E2G circuit open
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S If the value is −40_C (−40_F):
sensor circuit is open
S If the value is greater than 140_C
(284_F):
sensor circuit is shorted
Read the value with the ignition
switch ON (Do not start engine)
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