Lexus ES: Hybrid Transaxle System
On-vehicle Inspection
ON-VEHICLE INSPECTION
CAUTION / NOTICE / HINT
CAUTION:
To prevent injury due to contact with an operating V-ribbed belt or cooling fan, keep your hands and clothing away from the V-ribbed belt and cooling fans when working in the engine compartment with the engine running or the power switch on (IG).
PROCEDURE
1. REMOVE FRONT FENDER APRON SEAL LH
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2. REMOVE AUTOMATIC TRANSMISSION CASE COVER
| (a) Remove the 2 bolts. |
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(b) Remove the clip and automatic transmission case cover from the hybrid vehicle transaxle assembly.
3. INSPECT TRANSAXLE FLUID PRESSURE
NOTICE:
Make sure to perform the following inspection after inspecting and adjusting the engine.
| (a) Remove the transmission oil pump cover plug from the hybrid vehicle transaxle assembly. |
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(b) Remove the O-ring from the transmission oil pump cover plug.
| (c) Install SST to the hybrid vehicle transaxle assembly. SST: 09993-19015 09993-00020 09993-00040 |
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(d) Put the engine in Inspection Mode (Maintenance Mode).
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(e) Measure the hybrid transaxle fluid pressure.
Reference:
| Maintenance Mode Engine Idle Speed | Hybrid Transaxle Fluid Temperature | Hybrid Transaxle Fluid Pressure |
|---|---|---|
| 900 to 1000 rpm | 20 to 50°C (68 to 122°F) | 9.8 kPa (0.1 kgf/cm2, 1 psi) or more |
NOTICE:
Be sure to cancel maintenance mode immediately after the hybrid transaxle fluid pressure check is completed.
(f) Remove SST from the hybrid vehicle transaxle assembly.
(g) Coat a new O-ring with ATF and install it to transmission oil pump cover plug.
(h) Install the transmission oil pump cover plug to the hybrid vehicle transaxle assembly.
Torque:
8.0 N·m {82 kgf·cm, 71 in·lbf}
4. INSTALL AUTOMATIC TRANSMISSION CASE COVER
| (a) Install the automatic transmission case cover to the hybrid vehicle transaxle assembly with the clip. |
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(b) Install the bolt.
Torque:
10 N·m {102 kgf·cm, 7 ft·lbf}
| (c) Using a 10 mm union nut wrench, install the bolt. Torque: Specified Tightening Torque : 10 N·m {102 kgf·cm, 7 ft·lbf} HINT:
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5. INSTALL FRONT FENDER APRON SEAL LH
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