Last Modified: 05-13-2024 6.11:8.1.0 Doc ID: RM10000000270P6
Model Year Start: 2023 Model: Corolla Prod Date Range: [09/2022 - 11/2022]
Title: 2ZR-FAE (ENGINE CONTROL): CONTINUOUSLY VARIABLE VALVE LIFT CONTROLLER: REMOVAL; 2023 MY Corolla [09/2022 - 11/2022]

REMOVAL

CAUTION / NOTICE / HINT

The necessary procedures (adjustment, calibration, initialization or registration) that must be performed after parts are removed and installed, or replaced during continuously variable valve lift controller assembly removal/installation are shown below.

Necessary Procedures After Parts Removed/Installed/Replaced

Replaced Part or Performed Procedure

Necessary Procedure

Effect/Inoperative Function when Necessary Procedure not Performed

Link
  • Replacement of continuously variable valve lift controller assembly
  • Replacement of ignition coil assembly

Inspection after repair
  • Poor idle, etc.
  • Engine start function, etc.

2020 - 2023 MY Corolla [01/2019 - 11/2022]; 2ZR-FAE (ENGINE CONTROL): SFI SYSTEM: INITIALIZATION

HINT:

When the cable is disconnected / reconnected to the battery terminal, systems temporarily stop operating. However, each system has a function that completes learning the first time the system is used.

Learning completes when vehicle is driven

Effect/Inoperative Function when Necessary Procedure not Performed

Necessary Procedure

Link

Pre-collision System (for TMMMS Made)

Drive the vehicle straight ahead at 35 km/h (22 mph) or more for 5 seconds or more.

2023 MY Corolla Corolla Hatchback Corolla HV GR Corolla [09/2022 - 11/2022]; ADVANCED DRIVER ASSISTANCE SYSTEM: PRE-COLLISION SYSTEM (for TMMMS Made): INITIALIZATION

Lane Tracing Assist System (for TMMMS Made)

Lane Departure Alert System (for TMMMS Made)

PROCEDURE

1. REMOVE BATTERY

Click here 2023 MY Corolla [09/2022 - 11/2022]; MAINTENANCE: 2ZR-FAE BATTERY: REMOVAL

2. DISCONNECT ENGINE WIRE

(a) w/ Canister Pump Module:

*a

Bolt

*b

Nut

(1) Disengage the 9 clamps, and then disconnect the 21 connectors.

(2) Remove the 4 bolts and nut, and disconnect the engine wire.

(b) w/o Canister Pump Module:

*a

Bolt

*b

Nut

(1) Disengage the 9 clamps, and then disconnect the 20 connectors.

(2) Remove the 4 bolts and nut, and disconnect the engine wire.

3. DISCONNECT NO. 2 VENTILATION HOSE

(a) Slide the clip and disconnect the No. 2 ventilation hose from the cylinder head cover sub-assembly.

4. REMOVE PURGE VALVE (PURGE VSV)

(a) Disconnect the No. 1 fuel vapor feed hose from the intake manifold.

*A

w/ Canister Pump Module

*B

w/o Canister Pump Module

*1

Fuel Vapor Feed Hose

*2

No. 1 Fuel Vapor Feed Hose

(b) Slide the clip and disconnect the fuel vapor feed hose from the purge valve (purge VSV).

(c) Remove the 2 bolts and purge valve (purge VSV) from the cylinder head cover sub-assembly.

5. REMOVE IGNITION COIL ASSEMBLY

Click here 2020 - 2023 MY Corolla [01/2019 - 11/2022]; 2ZR-FAE (ENGINE CONTROL): IGNITION COIL AND SPARK PLUG: REMOVAL+

6. REMOVE CYLINDER HEAD COVER SUB-ASSEMBLY

Click here 2020 - 2023 MY Corolla [03/2019 - 11/2022]; 2ZR-FAE (ENGINE MECHANICAL): ENGINE UNIT: DISASSEMBLY+

7. REMOVE CYLINDER HEAD COVER GASKET

Click here 2020 - 2023 MY Corolla [03/2019 - 11/2022]; 2ZR-FAE (ENGINE MECHANICAL): ENGINE UNIT: DISASSEMBLY+

8. REMOVE CONTINUOUSLY VARIABLE VALVE LIFT CONTROLLER ASSEMBLY

(a) Using a screwdriver, slide the valve lift control actuator connector clip from the valve lift control actuator connector.

NOTICE:

Slide only the upper part of the valve lift control actuator connector clip, as the straight pin will fall out from the bottom if the valve lift control actuator connector clip is completely removed.

(b) Rotate the crankshaft clockwise until the intake camshaft position at the No. 1 cylinder and No. 3 cylinder are as shown in the illustration.

HINT:

If the intake camshaft position is not as shown in the illustration, rotate the crankshaft clockwise again so that the intake camshaft is aligned as shown in the illustration.

*a

No. 1 Cylinder

*b

No. 3 Cylinder

(c) Turn the crankshaft counterclockwise approximately 10 to 15°.

(d) Using 2 screwdrivers, lightly pry the valve lift control actuator connector to make a space between the continuously variable valve lift controller assembly and camshaft housing sub-assembly.

NOTICE:

  • Do not forcibly pry the valve lift control actuator connector.
  • Do not damage the camshaft housing sub-assembly and camshaft bearing cap.

(e) Using a Magnet Hand, remove the straight pin from the valve lift control actuator connector.

NOTICE:

Do not drop the straight pin into the engine.

HINT:

  • The straight pin can be removed by utilizing the space between the continuously variable valve lift controller assembly and camshaft housing sub-assembly to move the continuously variable valve lift controller assembly so that there is no load on the straight pin.
  • If the straight pin cannot removed easily, slightly turn the crankshaft clockwise and then counterclockwise.
  • If the straight pin could not be removed using a Magnet Hand, proceed to *1. If the straight pin could be removed, proceed to *2.

(f) *1 (If straight pin could not be removed)

(1) Using a screwdriver, remove the valve lift control actuator connector clip from the valve lift control actuator connector.

NOTICE:

Do not drop the valve lift control actuator connector clip into the engine.

(2) Align the end of SST with the straight pin hole of the valve lift control actuator connector and push up the straight pin approximately 5 mm (0.197 in.) as shown in the illustration.

*1

Valve Lift Control Actuator Connector

*2

Straight Pin

*a

Straight Pin Hole

*b

Tilt

*c

Push up

-

-

SST: 09249-37020

(3) Using pliers, remove the straight pin from the valve lift control actuator connector.

NOTICE:

  • Make sure to wrap the tips of the pliers with protective tape.
  • Do not drop the straight pin into the engine.

*a

Protective Tape

(g) *2 (If straight pin could be removed)

(1) Using a screwdriver, remove the valve lift control actuator connector clip from the valve lift control actuator connector.

NOTICE:

Do not drop the valve lift control actuator connector clip into the engine.

(h) Remove the 2 nuts and wire harness clamp bracket from the camshaft housing sub-assembly.

(i) Remove the bolt from the continuously variable valve lift controller assembly.

(j) Remove the continuously variable valve lift controller assembly from the camshaft housing sub-assembly.

NOTICE:

If the continuously variable valve lift controller assembly has been struck or dropped, replace it.

(k) Remove the O-ring from the continuously variable valve lift controller assembly.

*1

O-ring

(l) Remove the valve lift control actuator connector from the valve rocker shaft assembly.