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
Precaution
Periodic maintenanceSystem
System Diagram
System Description
FRONT WIPER CONTROL (BASIC)
BCM detects the combination switch position by the combination switch
reading function.
BCM transmits the front wiper request signal to the IPDM E/R using CAN
communication.
IPDM E/R controls the integrated front wipe ...
Ecm 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 ECM for damage, bend and loose
connection (unit side and
connector side).
Is the inspection result normal?
YES > ...
Main line between ipdm-e and dlc circuit
Diagnosis procedure
1.Check connector
Turn the ignition switch off.
Disconnect the battery cable from the negative terminal.
Check the following terminals and connectors for damage, bend and loose
connection (connector side
and harness side).
Harness connector e4
Harness connec ...