Toyota Celica 2005, Руководство по ремонту

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DI − 690
− DIAGNOSTICS AUTOMATIC TRANSAXLE (U240E)
2005 CELICA (RM1131U)
13. HYDRAULIC TEST
Measure the line pressure.
NOTICE:
S
Do the test at normal operation fluid temperature 50 to 80 ° C (122 to 176 ° F)
S
The line pressure test should always be carried out in pairs. One technician should observe
the conditions of wheels or wheel stoppers outside the vehicle while the other is doing the test.
S
Be careful to prevent SST’s hose from interfering with the exhaust pipe.
(1) Warm up the ATF.
(2) Remove the test plug on the transaxle case front left side and connect SST (See page AX − 30
for the location to connect SST).
SST 09992 − 00095 (09992 − 00231, 09992 − 00271)
(3) Fully apply the parking brake and check the 4 wheels.
(4) Connect an OBD II scan tool or hand − held tester to DLC3.
(5) Start the engine and check idling speed.
(6) Keep your left foot pressed firmly on the brake pedal and shift into D position.
(7) Measure the line pressure when the engine is idling.
(8) Depress the accelerator pedal all the way down. Quickly read the highest line pressure when
engine speed reaches stall speed.
(9) In the same manner, do the test in R position.
Specified line pressure:
Condition D position kPa (kgf/cm
2
, psi) R position kPa (kgf/cm
2
, psi)
Idling 372 to 412 (3.8 to 4.2, 54 to 59) 672 to 742 (6.9 to 7.6, 97 to 107)
Stall 931 to 1,031 (9.5 to 10.5, 134 to 149) 1,768 to 1,968 (18.0 to 20.1, 255 to 284)
Evaluation:
Problem Possible cause
If the measured values at all position are higher
S Throttle valve defective
S Regulator valve defective
If the measured values at all position are lower
S Throttle valve defective
S Regulator valve defective
S Oil pump defective
S O/D direct clutch defective
If pressure is low in the D position only
S
D position circuit fluid leakage
S
Forward clutch defective
If pressure is low in the R position only
S R position circuit fluid leakage
S Direct clutch defective
S 1st & reverse brake defective
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