(1) Check if main code 22 code 15 or 16 is
logged in WTEC III TPSS (para 8-5).
(2) If main code 22 sub code 15 or 16 is logged,
WTEC III transmission ECU has sensed a
fault with the turbine speed sensor, output
speed sensor, or associated circuit(s). Perform
Transmission System Troubleshooting (f23.
WTEC III Transmission Pushbutton Shift Selector
(TPSS) Displays Main Code 22 Sub Code 15
or f24. WTEC III Transmission Pushbutton Shift
Selector (TPSS) Displays Main Code 22 Sub
Change 1 2-1575
Loose or dirty connectors may cause
intermittent loss of power to transmission
ECU and diagnostic codes to be logged.
Ensure that all connectors are clean and tight
before performing troubleshooting. Failure to
comply may result in incorrect test results.
Wear appropriate eye protection when working
under vehicle due to the possibility of falling
debris. Failure to comply may result in injury