Toyota Prius: Hybrid Transaxle System

On-vehicle Inspection

ON-VEHICLE INSPECTION

CAUTION / NOTICE / HINT

CAUTION:

To prevent injury due to contact with an operating cooling fan, keep your hands and clothing away from the cooling fans when working in the engine compartment with the engine running or the ignition switch on (IG).

PROCEDURE

1. REMOVE NO. 1 ENGINE UNDER COVER ASSEMBLY

2. REMOVE REAR ENGINE UNDER COVER LH

3. INSPECT TRANSAXLE FLUID PRESSURE

NOTICE:

Make sure to perform the following inspection after inspecting and adjusting the engine.

Pre-procedure1

(a) Remove the bolt from the hybrid Toyota Prius vehicle transaxle assembly.

*A	for PA10	*B	for PB10
*C	for PB12	-	-

(b) Remove the O-ring from the bolt.

(c) Install SST to the hybrid Toyota Prius vehicle transaxle assembly.

*A	for PA10	*B	for PB10
*C	for PB12	-	-
*1	Gasket	*2	O-ring

SST: 09993-19016

09993-00021

09993-00041

(d) Put the engine in Inspection Mode (Maintenance Mode).

HINT:

Click here

Procedure1

(e) Measure the hybrid transaxle fluid pressure.

Reference:

Maintenance Mode Engine Idle Speed	Hybrid Transaxle Fluid Temperature	Specified Condition (Hybrid Transaxle Fluid Pressure)	Result
900 to 1000 rpm	20 to 50°C (68 to 122°F)	10 kPa or higher 0.1 kgf/cm2 or higher 1 psi or higher	kPa kgf/cm2 psi

NOTICE:

Be sure to cancel maintenance mode immediately after the hybrid transaxle fluid pressure check is completed.

Post-procedure1

(f) Remove SST from the hybrid Toyota Prius vehicle transaxle assembly.

(g) Coat a new O-ring with TOYOTA GENUINE e-Transaxle Fluid TE and install it to the bolt.

(h) Install the bolt to the hybrid vehicle transaxle assembly.

Torque:

8.0 N·m {82 kgf·cm, 71 in·lbf}

4. INSTALL REAR ENGINE UNDER COVER LH

5. INSTALL NO. 1 ENGINE UNDER COVER ASSEMBLY