ON-VEHICLE INSPECTION PROCEDURE 1. INSPECT CAMSHAFT TIMING OIL CONTROL VALVE ASSEMBLY (a) Connect the Techstream to the DLC3. (b) Start the engine and turn the tester ON. (c) Warm up the engine. (d) Enter the following menus: 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. OK:
If the result is not as specified, check the oil control valve, wiring and camshaft timing gear. HINT:
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Toyota Tundra Service Manual > Lin Communication System: Driver Side Door ECU Communication Stop (B2321)
DESCRIPTION This DTC is output when LIN communication between the front power window regulator motor assembly LH and main body ECU (multiplex network body ECU) stops for 10 seconds or more. DTC No. DTC Detection Condition Trouble Area B2321 No communication between the front power window regulator m ...