P1148 closed loop control
DTC Logic
DTC DETECTION LOGIC
NOTE:
DTC P1148 is displayed with DTC for A/F sensor 1.
When the DTC is detected, perform the trouble diagnosis of DTC corresponding to
A/F sensor 1.
DTC No.
Trouble diagnosis
(Trouble diagnosis content)
DTC detecting condition
Possible cause ...
Lock-up control
LOCK-UP CONTROL : System Description
SYSTEM DIAGRAM
DESCRIPTION
Controls for improvement of the transmission efficiency by engaging the
torque converter clutch in the
torque converter and eliminating slip of the converter. Achieves comfortable
driving with slip control of the
t ...