Last Modified: 05-13-2024 6.11:8.1.0 Doc ID: RM100000001H4XE
Model Year Start: 2020 Model: Corolla Prod Date Range: [01/2019 -           ]
Title: 2ZR-FXE (ENGINE CONTROL): CAMSHAFT OIL CONTROL VALVE: INSPECTION; 2020 - 2025 MY Corolla Corolla HV [01/2019 -        ]

INSPECTION

PROCEDURE

1. INSPECT CAMSHAFT TIMING OIL CONTROL VALVE ASSEMBLY

(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.

*a

Component without harness connected

(Camshaft Timing Oil Control Valve Assembly)

(b) Check the operation.

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

OK:

Condition

Specified Condition

Auxiliary battery voltage applied

Valve moves in left arrow direction shown in illustration

Auxiliary battery voltage cut off

Valve moves in right arrow direction shown in illustration

NOTICE:

Confirm that the valve moves freely and does not stick in any position.

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

HINT:

Accumulation of foreign matter can cause minor pressure leaks. Minor pressure leaks will cause the camshaft to advance or retard, and this will cause a DTC to be stored.

*a

Component without harness connected

(Camshaft Timing Oil Control Valve Assembly)

*b

When Auxiliary Battery Voltage Applied

*c

When Auxiliary Battery Voltage Cut Off

*d

Spool Valve