Last Modified: 07-31-2024 6.11:8.1.0 Doc ID: RM100000001GMI0
Model Year Start: 2020 Model: Corolla Prod Date Range: [01/2019 - 04/2020]
Title: 2ZR-FXE (ENGINE MECHANICAL): ENGINE UNIT: REMOVAL; 2020 MY Corolla Corolla HV [01/2019 - 04/2020]

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 engine unit removal/installation are shown below.

Necessary Procedure After Parts Removed/Installed/Replaced

Replaced Part or Performed Procedure

Necessary Procedure

Effect/Inoperative Function when Necessary Procedure not Performed

Link

Disconnect cable from negative auxiliary battery terminal

Perform steering sensor zero point calibration

Lane Control System

2020 - 2022 MY Corolla Corolla HV [01/2019 - 09/2022]; PRE-COLLISION: PRE-COLLISION SYSTEM (for HV Model): INITIALIZATION

Pre-collision System

Replacement of inverter with converter assembly

Resolver learning
  • DTCs are stored
  • Slight vibration at a vehicle speed of 5 km/h (3 mph) or less
  • Shock or vibration during acceleration

2020 - 2022 MY Corolla Corolla HV [01/2019 - 09/2022]; HYBRID / BATTERY CONTROL: MOTOR GENERATOR CONTROL SYSTEM (for NICKEL METAL HYDRIDE BATTERY): UTILITY

Replacement of hybrid vehicle transaxle assembly
  • Resolver learning
  • Initialize resolver

Replacement of ECM

Vehicle Identification Number (VIN) registration

MIL comes on

2020 - 2025 MY Corolla Corolla HV [01/2019 -        ]; 2ZR-FXE (ENGINE CONTROL): SFI SYSTEM: REGISTRATION

  • Replacement of throttle body assembly
  • Replacement of engine assembly
  • Replacement of cylinder head sub-assembly
  • Replacement of camshaft (for intake or exhaust camshaft)
  • Replacement of camshaft timing gear assembly
  • Replacement of fuel injector assembly
  • Replacement of spark plug
  • Replacement of ignition coil assembly
  • Replacement of EGR valve assembly
  • Gas leak from exhaust system is repaired
  • Replacement of knock control sensor

Inspection After Repair
  • Poor idle, etc.
  • Engine start function, etc.

2020 - 2022 MY Corolla Corolla HV [01/2019 - 09/2022]; 2ZR-FXE (ENGINE CONTROL): SFI SYSTEM: INITIALIZATION

Front wheel alignment adjustment
  1. Clear zero point calibration data
  2. Perform yaw rate and acceleration sensor zero point calibration
  • DTCs are stored
  • ABS warning light illuminates
  • Brake warning light / yellow (minor malfunction) illuminates
  • Slip indicator light illuminates
  • VSC disabled or malfunctions

2020 - 2022 MY Corolla Corolla HV [01/2019 - 09/2022]; BRAKE CONTROL / DYNAMIC CONTROL SYSTEMS: ELECTRONICALLY CONTROLLED BRAKE SYSTEM (for HV Model): CALIBRATION

NOTICE:

After the power switch is turned off, the radio and display receiver assembly records various types of memory and settings. As a result, after turning the power switch off, make sure to wait at least 85 seconds before disconnecting the cable from the negative (-) auxiliary battery terminal. (for Audio and Visual System (for HV Model))

PROCEDURE

1. REMOVE WATER OUTLET

(a) Slide the clip and disconnect the No. 4 water by-pass hose from the EGR valve assembly with EGR cooler.

*1

No. 9 Water By-pass Hose

*2

No. 4 Water By-pass Hose

(b) Slide the clip and disconnect the No. 9 water by-pass hose from the purge valve.

(c) Remove the 2 nuts, water outlet and water outlet gasket from the cylinder head sub-assembly.

2. REMOVE EGR PIPE ASSEMBLY

(a) Remove the 4 bolts and EGR pipe assembly, EGR pipe gasket and inlet EGR gasket.

3. REMOVE EGR VALVE ASSEMBLY WITH EGR COOLER

(a) Remove the bolt and 4 nuts.

*a

Stud Bolt

Bolt

Nut

(b) Using an E8 "TORX" socket wrench, remove the 2 stud bolts and EGR valve assembly with EGR cooler from the cylinder head sub-assembly and exhaust manifold (TWC: Front Catalyst).

(c) Remove the EGR cooler gasket.

4. REMOVE NO. 1 EXHAUST MANIFOLD HEAT INSULATOR

Click here 2020 - 2022 MY Corolla Corolla HV [01/2019 - 09/2022]; 2ZR-FXE (INTAKE / EXHAUST): EXHAUST MANIFOLD: REMOVAL+

5. REMOVE MANIFOLD STAY

Click here 2020 - 2022 MY Corolla Corolla HV [01/2019 - 09/2022]; 2ZR-FXE (INTAKE / EXHAUST): EXHAUST MANIFOLD: REMOVAL+

6. REMOVE EXHAUST MANIFOLD (TWC: Front Catalyst)

Click here 2020 - 2022 MY Corolla Corolla HV [01/2019 - 09/2022]; 2ZR-FXE (INTAKE / EXHAUST): EXHAUST MANIFOLD: REMOVAL+

7. DISCONNECT VENTILATION HOSE

Click here 2020 - 2022 MY Corolla Corolla HV [01/2019 - 09/2022]; 2ZR-FXE (INTAKE / EXHAUST): INTAKE MANIFOLD: REMOVAL+

8. REMOVE INTAKE MANIFOLD

Click here 2020 - 2022 MY Corolla Corolla HV [01/2019 - 09/2022]; 2ZR-FXE (INTAKE / EXHAUST): INTAKE MANIFOLD: REMOVAL+

9. REMOVE ENGINE OIL LEVEL DIPSTICK

Click here 2020 - 2025 MY Corolla Corolla HV [01/2019 -        ]; 2ZR-FXE (COOLING): THERMOSTAT: REMOVAL+

10. REMOVE ENGINE OIL LEVEL DIPSTICK GUIDE

Click here 2020 - 2025 MY Corolla Corolla HV [01/2019 -        ]; 2ZR-FXE (COOLING): THERMOSTAT: REMOVAL+

11. REMOVE WATER BY-PASS PIPE

(a) Slide the clip and disconnect the water by-pass pipe from the water inlet sub-assembly.

(b) Remove the 2 bolts and water by-pass pipe from the cylinder head sub-assembly.

12. REMOVE PURGE VALVE (PURGE VSV)

Click here 2020 - 2025 MY Corolla Corolla HV [01/2019 -        ]; 2ZR-FXE (EMISSION CONTROL): PURGE VALVE: REMOVAL+

13. REMOVE FUEL VAPOR FEED PIPE

(a) Remove the 2 bolts and fuel vapor feed pipe from the cylinder head cover sub-assembly.

14. REMOVE FUEL DELIVERY PIPE SUB-ASSEMBLY

Click here 2020 MY Corolla Corolla HV [01/2019 - 04/2020]; 2ZR-FXE (FUEL): FUEL INJECTOR: REMOVAL+

15. REMOVE NO. 1 DELIVERY PIPE SPACER

Click here 2020 MY Corolla Corolla HV [01/2019 - 04/2020]; 2ZR-FXE (FUEL): FUEL INJECTOR: REMOVAL+

16. REMOVE FUEL INJECTOR ASSEMBLY

Click here 2020 MY Corolla Corolla HV [01/2019 - 04/2020]; 2ZR-FXE (FUEL): FUEL INJECTOR: REMOVAL+

17. REMOVE VENTILATION HOSE

(a) Slide the clip and remove the ventilation hose from the PCV valve (ventilation valve sub-assembly).

18. REMOVE IGNITION COIL ASSEMBLY

Click here 2020 - 2022 MY Corolla Corolla HV [01/2019 - 09/2022]; 2ZR-FXE (ENGINE CONTROL): IGNITION COIL AND SPARK PLUG: REMOVAL+

19. REMOVE WIRE HARNESS CLAMP BRACKET

(a) Remove the bolt and wire harness clamp bracket from the timing chain cover sub-assembly.