Noise, vibration and harshness (nvh) troubleshooting
NVH Troubleshooting Chart
Use chart below to find the cause of the symptom. If necessary, repair or replace these parts.

×: Applicable
PreparationP0744 Torque converter
DTC Logic
DTC DETECTION LOGIC
DTC
CONSULT screen terms
(Trouble diagnosis content)
DTC detection condition
Possible causes
P0744
TORQUE CONVERTER
(Torque converter clutch circuit
intermittent)
The torque converter slip speed is at or above
a set value (40 ...
Cylinder head
Exploded View
Cylinder head assembly
Cylinder head bolt
Cylinder head gasket
Refer to INSTALLATION
Removal and Installation
REMOVAL
Release fuel pressure. Refer to EC-143, "Work Procedure".
Drain engine coolant and engine oil. Refer to CO-12, "Changing En ...
Av branch line circuit
Diagnosis Procedure
1.Check connector
Turn the ignition switch off.
Disconnect the battery cable from the negative terminal.
Check the terminals and connectors of the av control unit for damage,
bend and loose connection (unit
side and connector side).
Is the inspection result norma ...