On-Vehicle Inspection [01/2019 - 11/2022]: Procedure
WARNING: This page is about a different car, the 2022 Toyota Corolla, 2021 Toyota Corolla, 2020 Toyota Corolla, and 2019 Toyota Corolla. However, it is still accessible from the selected car via links, so may be relevant.
- INSPECT CAMSHAFT TIMING OIL CONTROL VALVE ASSEMBLY
- Connect the Techstream to the DLC3.
- Start the engine.
- Turn the Techstream on.
- Turn the A/C switch on.
- Inspect the camshaft timing oil control valve assembly (for intake side).
- Enter the following menus: Powertrain / Engine and ECT / Active Test / Control the VVT Linear (Bank1).
Powertrain > Engine and ECT > Active Test
Tester Display Control the VVT Linear (Bank1) - Check the engine speed while operating the camshaft timing oil control valve assembly using the Techstream.
Standard Condition
Techstream Operation Specified Condition 0% Normal engine speed 100% Engine idles roughly or stalls HINT:
- Refer to "Data List / Active Test" [VVT OCV Duty #1 and VVT Change Angle #1].
Refer to DATA LIST / ACTIVE TEST [01/2019 - 03/2019] , or refer to DATA LIST / ACTIVE TEST [03/2019 - 04/2020] , or refer to DATA LIST / ACTIVE TEST [04/2020 - 11/2022]
- If the result is not as specified, allow the engine to cool (engine coolant temperature of 50°C (122°F) or less) and perform the Active Test again.
- DTCs related to the VVT system may be stored due to Active Test operation, but this does not indicate a malfunction.
If the operation is not as specified, check the camshaft timing oil control valve assembly, wire harness and ECM.
- Refer to "Data List / Active Test" [VVT OCV Duty #1 and VVT Change Angle #1].
- Enter the following menus: Powertrain / Engine and ECT / Active Test / Control the VVT Linear (Bank1).
- Inspect the camshaft timing oil control valve assembly (for exhaust side).
- Enter the following menus: Powertrain / Engine and ECT / Active Test / Control the VVT Exhaust Linear (Bank1).
Powertrain > Engine and ECT > Active Test
Tester Display Control the VVT Exhaust Linear (Bank1) - Check the engine speed while operating the camshaft timing oil control valve assembly using the Techstream.
Standard Condition
Techstream Operation Specified Condition 0% Normal engine speed 100% Engine idles roughly or stalls HINT:
- Refer to "Data List / Active Test" [VVT Ex OCV Duty #1 and VVT Ex Chg Angle #1].
Refer to DATA LIST / ACTIVE TEST [01/2019 - 03/2019] , or refer to DATA LIST / ACTIVE TEST [03/2019 - 04/2020] , or refer to DATA LIST / ACTIVE TEST [04/2020 - 11/2022]
- If the result is not as specified, allow the engine to cool (engine coolant temperature of 50°C (122°F) or less) and perform the Active Test again.
- DTCs related to the VVT system may be stored due to Active Test operation, but this does not indicate a malfunction.
If the operation is not as specified, check the camshaft timing oil control valve assembly, wire harness and ECM.
- Refer to "Data List / Active Test" [VVT Ex OCV Duty #1 and VVT Ex Chg Angle #1].
- Enter the following menus: Powertrain / Engine and ECT / Active Test / Control the VVT Exhaust Linear (Bank1).