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
(2) Read the Data List while performing the Active Test with the engine idling. OK:
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
(2) Check the engine speed while operating the camshaft timing oil control solenoid assembly (for exhaust camshaft) using the Techstream. OK:
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. |
Toyota Avalon (XX50) 2019-2022 Service & Repair Manual > Smart Key System(for Start Function, Hv Model): Engine Immobiliser System Circuit Short to Battery (B279A12)
DESCRIPTION If the communication line (IMI - EFIO) between the hybrid vehicle control ECU and certification ECU (smart key ECU assembly) is stuck high, the hybrid vehicle control ECU will store this DTC. DTC No. Detection Item DTC Detection Condition Trouble Area Note B279A12 Engine Immobiliser Syst ...
