Toyota Celica 2005 Repair Manual page 978

12. MECHANICAL SYSTEM TESTS
(a) Measure the stall speed.
The object of this test is to check the overall performance of the transaxle and engine by measuring
the stall speeds in the D and R positions.
NOTICE:
Do the test at normal operating fluid temperature 50 to 80 °C (122 to 176 °F).
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Do not continuously run this test for longer than 10 seconds.
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To ensure safety, conduct this test in a wide, clear level area which provides good traction.
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The stall test should always be carried out in pairs. One technician should observe the condi-
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tions of wheels or wheel stoppers outside the vehicle while the other is doing the test.
(1) Chock the 4 wheels.
(2) Connect an OBD II scan tool or hand−held tester to DLC3.
(3) Fully apply the parking brake.
(4) Keep your left foot pressed firmly on the brake pedal.
(5) Start the engine.
(6) Shift into the D position. Press all the way down on the accelerator pedal with your right foot.
Quickly read the stall speed at this time.
Stall speed: 2,220 to 2,520 rpm
(7) Do the same test in R position.
Stall speed: 2,220 to 2,520 rpm
Evaluation:
(a) Stall engine speed is low in D and R positions
(b) Stall engine speed is high in D position
(c) Stall engine speed is high in R position
(d) Stall engine speed is high in D and R positions
2005 CELICA (RM1131U)
DIAGNOSTICS
(f)
Neutral Basic
Line
If it is not as stated above, carry out the following adjustment
procedures.
Groove
D07267
(g)
Problem
− AUTOMATIC TRANSAXLE (U341E)
Inspect and adjust the park/neutral position.
Check that the engine can be started with the shift lever
only in the N or P position, but not in other positions.
(1) Loosen the park/neutral position switch bolt and set
the shift lever to the N position.
(2) Align the groove and neutral basic line.
(3) Hold in position and tighten the bolt.
Torque: 5.4 N·m (55 kgf·cm, 48 in.·lbf)
For continuity inspection of the park/neutral position
switch, see page DI−789.
Check the idle speed.
Idle speed: 750 ± 50 rpm
(In N position and air conditioner OFF)
S Engine output may be insufficient
S Stator one−way clutch is operating properly
HINT: If the value is larger or smaller than the specified value by
600 rpm or more, the torque converter could be faulty.
S Line pressure too low
S Forward clutch slipping
S No.2 one−way clutch not operating properly
S Line pressure too low
S Reverse clutch slipping
S 1st & reverse brake slipping
S Line pressure too low
S Improper fluid level
977
Possible cause
DI−777