Toyota Tundra Service Manual: Disassembly

DISASSEMBLY

PROCEDURE

1. FIX VANE PUMP ASSEMBLY

(a) Using SST, hold the vane pump in a vise.

SST: 09630-00014

09631-00132

2. REMOVE POWER STEERING SUCTION PORT UNION

(a) Remove the bolt and suction port union from the vane pump.

(b) Using a screwdriver, remove the O-ring from the suction port union.

3. REMOVE FLOW CONTROL VALVE

(a) Remove the pressure port union.

(b) Remove the O-ring from the pressure port union.

4. REMOVE VANE PUMP REAR HOUSING

(a) Remove the 4 bolts and rear housing from the front housing.

(b) Using a screwdriver, remove the O-ring from the rear housing.

HINT:

Tape the screwdriver tip before use.

5. REMOVE VANE PUMP SHAFT WITH VANE PUMP PULLEY

(a) Using 2 screwdrivers, remove the snap ring from the vane pump shaft.

(b) Remove the vane pump shaft with vane pump pulley.

NOTICE:

Be careful not to drop or damage the vane pump shaft with vane pump pulley. If it is damaged, replace the vane pump assembly.

6. REMOVE VANE PUMP ROTOR

(a) Remove the 10 vane plates.

NOTICE:

Take care not to drop the vane plate.

(b) Remove the vane pump rotor.

7. REMOVE VANE PUMP CAM RING

(a) Remove the cam ring from the front housing.

8. REMOVE VANE PUMP FRONT SIDE PLATE

(a) Remove the front side plate from the front housing.

(b) Using a screwdriver, remove the O-ring from the front side plate.

HINT:

Tape the screwdriver tip before use.

9. REMOVE VANE PUMP HOUSING OIL SEAL

(a) Using a screwdriver and piece of cloth, pry out the oil seal.

NOTICE:

Be careful not to damage the front housing.

Toyota Tundra Service Manual > Occupant Classification System: Front Occupant Classification Sensor RH Circuit Malfunction (B1781)
DESCRIPTION The front occupant detection sensor RH circuit consists of the occupant classification ECU and the front occupant detection sensor RH. DTC B1781 is set when a malfunction is detected in the front occupant detection sensor RH circuit. DTC Code DTC Detection Condition Trouble Area B1781 On ...

Toyota Tundra Owners Manual