NOISE, VIBRATION AND HARSHNESS (NVH) TROUBLESHOOTING
NVH Troubleshooting Chart
Use the chart below to help you find the cause of the symptom. If necessary, repair or replace these parts.

×: Applicable
Preparation
Periodic maintenanceBasic inspection
DIAGNOSIS AND REPAIR WORKFLOW
Work Flow
OVERALL SEQUENCE
DETAILED FLOW
1. GET INFORMATION FOR SYMPTOM
Get the detailed information from the customer about the symptom (the
condition and the environment whenthe incident/malfunction occurred).
2. CHECK DTC
Check DTC.
Perform the follow ...
Service Data And Specifications (SDS)
General Specification
GENERAL SPECIFICATIONS
Drive Belt
DRIVE BELT
Spark Plug
SPARK PLUG
*: Always check with the Parts Department for the latest parts information.
Intake Manifold
INTAKE MANIFOLD
Exhaust Manifold
EXHAUST MANIFOLD
Camshaft
CAMSHAFT
*1: Cam wear limit * ...
C1147, C1148, C1149, C1150 USV/HSV line
Description
USV1, USV2 (CUT VALVE)
The cut valve shuts off the normal brake fluid path from the master cylinder,
when VDC/TCS is activated.
HSV1, HSV2 (SUCTION VALVE)
The suction valve supplies the brake fluid from the master cylinder to the
pump, when VDC/TCS is activated.
DTC Logic
DTC D ...