Diagnostic Aids

After confirming DTC P0110, use Toyota hand-held tester or scan tool to access CURRENT DATA to confirm air intake temperature. If temperature displayed is -40°F (-40°C), IAT sensor circuit may be open. If temperature displayed is 284°F (140°C) or more, IAT sensor circuit may be shorted. Using hand-held tester or scan tool, read FREEZE FRAME data. Freeze frame data records engine conditions when malfunction is detected.