Lexus ES manuals

Lexus ES: On-vehicle Inspection

ON-VEHICLE INSPECTION

PROCEDURE

1. INSPECT CAMSHAFT TIMING OIL CONTROL SOLENOID ASSEMBLY

(a) Connect the Techstream to the DLC3.

(b) Start the engine.

(c) Turn the Techstream on.

(d) Inspect the camshaft timing oil control solenoid assembly (for intake side).

(1) Enter the following menus: Powertrain / Engine / Active Test / Control the Intake VVT OCV Duty Ratio Bank 1 or Control the Intake VVT OCV Duty Ratio Bank 2 / Data List / Intake VVT Change Angle Bank 1 or Intake VVT Change Angle Bank 2.

Powertrain > Engine > Active Test

Active Test Display

Control the Intake VVT OCV Duty Ratio Bank 1

Data List Display

Intake VVT Change Angle Bank 1

Powertrain > Engine > Active Test

Active Test Display

Control the Intake VVT OCV Duty Ratio Bank 2

Data List Display

Intake VVT Change Angle Bank 2

(2) Read the Data List while performing the Active Test with the engine idling.

OK:

Techstream Operation

Data List (Intake VVT Change Angle Bank 1 or Intake VVT Change Angle Bank 2)

-100% to 100%

Varies by 70 DegFR or more

If the result is not as specified, check the camshaft timing oil control solenoid assembly, wire harness and ECM.

(e) Inspect the camshaft timing oil control solenoid assembly (for exhaust side).

(1) Enter the following menus: Powertrain / Engine / Active Test / Control the Exhaust VVT OCV Duty Ratio Bank 1 or Control the Exhaust VVT OCV Duty Ratio Bank 2.

Powertrain > Engine > Active Test

Tester Display

Control the Exhaust VVT OCV Duty Ratio Bank 1

Powertrain > Engine > Active Test

Tester Display

Control the Exhaust VVT OCV Duty Ratio Bank 2

(2) Check the engine speed while operating the camshaft timing oil control solenoid assembly (for exhaust camshaft) using the Techstream.

OK:

Techstream Operation

Engine Condition

0%

Normal engine speed

100%

Engine idles roughly or stalls

HINT:

Refer to "Data List / Active Test" [Exhaust VVT OCV Control Duty Ratio Bank 1, Exhaust VVT Change Angle Bank 1, Exhaust VVT OCV Control Duty Ratio Bank 2 and Exhaust VVT Change Angle Bank 2].

Click here

If the result is not as specified, check the camshaft timing oil control solenoid assembly, wire harness and ECM.

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