P0744 torque converter
Description
This malfunction is detected when the torque converter clutch does not
lock-up as instructed by the TCM. This
is not only caused by electrical malfunctions (circuits open or shorted), but
also by mechanical malfunctions
such as control valve sticking, improper solenoid valve ope ...
Basic inspection
DIAGNOSIS AND REPAIR WORKFLOW
Work Flow
OVERALL SEQUENCE
DETAILED FLOW
1.OBTAIN INFORMATION ABOUT SYMPTOM
Interview the customer to obtain as much information as possible about the
conditions and environment under
which the malfunction occurred.
>> GO TO 2
2.CHECK SYMPTOM
Chec ...
Exhaust valve timing control
System Diagram
System Description
INPUT/OUTPUT SIGNAL CHART
*: This signal is sent to the ECM via the CAN Communication line.
SYSTEM DESCRIPTION
This mechanism magnetically controls cam phases continuously with the fixed
operating angle of the exhaust
valve.
The ECM receives ...