(1) Check if main code 22 sub code 15 or 16 is
logged in the WTEC II TEPSS (para 8-4).
(2) If main code 22 sub code 15 or 16 is logged,
WTEC II TEPSS has sensed a fault with the
turbine speed sensor, output sensor or
associated circuits. Perform Transmission
System Troubleshooting (f3. WTEC II
Transmission ECU Pushbutton Shift Selector
(TEPSS) Displays Main Code 22 Sub Code 15 or
f4. WTEC II Transmission ECU Pushbutton Shift
Selector (TEPSS) Displays Main Code 22 Sub
Change 1 2-1457
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