Last Modified: 05-13-2024 6.11:8.1.0 Doc ID: RM100000001GYJA
Model Year Start: 2020 Model: Corolla Prod Date Range: [01/2019 - 11/2022]
Title: 2ZR-FAE (ENGINE CONTROL): CAMSHAFT OIL CONTROL VALVE: INSPECTION; 2020 - 2023 MY Corolla [01/2019 - 11/2022]

INSPECTION

PROCEDURE

1. INSPECT CAMSHAFT TIMING OIL CONTROL VALVE ASSEMBLY

HINT:

Use the same procedure for the intake side and exhaust side.

(a) Measure the resistance according to the value(s) in the table below.

Standard Resistance:

Tester Connection

Condition

Specified Condition

1 - 2

20°C (68°F)

6.9 to 7.9 Ω

If the result is not as specified, replace the camshaft timing oil control valve assembly.

(b) Check the operation.

(1) Connect a battery positive (+) lead to terminal 1 and negative (-) lead to terminal 2, and check the movement of the spool valve.

OK:

Condition

Specified Condition

Battery voltage applied

Valve moves in left arrow direction shown in illustration

Battery voltage cut off

Valve moves in right arrow direction shown in illustration

NOTICE:

Accumulation of foreign matter can cause minor pressure leaks. Minor pressure leaks in the intake side oil control valve will cause the intake camshaft to advance and retard. Minor pressure leaks in the exhaust side oil control valve will cause the exhaust camshaft to advance and retard. The inappropriate camshaft timing that results from these leaks will cause a DTC to be stored.

If the result is not as specified, replace the camshaft timing oil control valve assembly.

*a

Component without harness connected

(Camshaft Timing Oil Control Valve Assembly)

*b

When Applied

*c

When Cut Off

*d

Spool Valve