STEP 2. Measure the output wave pattern of the lock-up solenoid valve at TCM connector (LULS terminal).
(1) Connect the CVT assembly connector.
(2) Selector lever position: D
(3) Accelerator pedal opening angle: 12.5% or less
(4) Drive at a constant speed of approx. 20 km/h (13 mph)
(5) Connect an oscilloscope, and measure the voltage between TCM connector LULS terminal and body ground.OK: A wave pattern such as the one shown on (Check Procedure Using an Oscilloscope) should be output. There should be no noise in the output wave pattern. Is the check result normal?
Go to Step 3. Refer to diagnostic trouble code No.P2763: Malfunction of Lock-up Solenoid Valve (high input) , or diagnostic trouble code No.P2764: Malfunction of Lock-up Solenoid Valve (low input) .