Tundra 4WD V8-5.7L (3UR-FE) (2007)
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Variable Valve Timing Actuator: Testing and Inspection
On-Vehicle Inspection
ON-VEHICLE INSPECTION
1. INSPECT CAMSHAFT TIMING OIL CONTROL VALVE ASSEMBLY
a. Connect the intelligent tester or Techstream to the DLC3.
b. Start the engine and turn the tester ON.
c. Warm up the engine.
d. Enter the following menus:
1. Intelligent tester - Select: DIAGNOSIS / ENHANCED OBD II / ACTIVE TEST /VVT B1 or VVT B2 or VVT CTRL B1 or VVT CTRL
B2 or VVT EX B1 or VVT EX B2.
2. Techstream - Select: Powertrain / Engine and ECT / Active Test / Control the VVT Linear (Bank 1) or Control the VVT Linear (Bank 2)
or Control the VVT System (Bank 1) or Control the VVT System (Bank 2) or Control the VVT Exhaust Linear (Bank 1) or Control the
VVT Exhaust Linear (Bank 2).
e. Check the engine speed while operating the Oil Control Valve (OCV) using the tester.
If the result is not as specified, check the oil control valve, wirings and camshaft timing gear.
HINT:
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Intelligent tester
-
VVT B1: Command to activate exhaust and intake side oil control valves of bank 1 (Control range: Between -128 to 127%).
-
VVT B2: Command to activate exhaust and intake side oil control valves of bank 2 (Control range: Between -128 to 127%).
-
VVT CTRL B1: Command to activate oil control valve of bank 1 (Control range: ON/ OFF).
-
VVT CTRL B2: Command to activate oil control valve of bank 2 (Control range: ON/ OFF).
-
VVT EX B1: Command to activate exhaust side oil control valve of bank 1 (Control range: Between -128 to 127%).- VVT EX B2:
Command to activate exhaust side oil control valve of bank 2 (Control range: Between -128 to 127%).
-
Techstream
-
Control the VVT Linear (Bank 1): Command to activate exhaust and intake side oil control valves of bank 1 (Control range: Between -128
to 127%).
-
Control the VVT Linear (Bank 2): Command to activate exhaust and intake side oil control valves of bank 2 (Control range: Between -128
to 127%).
-
Control VVT System (Bank 1): Command to activate oil control valve of bank 1 (Control range: ON/OFF).
-
Control VVT System (Bank 2): Command to activate oil control valve of bank 2 (Control range: ON/OFF).
-
Control the VVT Exhaust Linear (Bank 1): Command to activate exhaust side oil control valve of bank 1 (Control range: Between -128 to
127%).
-
Control the VVT Exhaust Linear (Bank 2): Command to activate exhaust side oil control valve of bank 2 (Control range: Between -128 to
127%).
