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