Loading ...
Loading ...
Loading ...
SEF332I
Component Description
NHEC0185
The knock sensor is attached to the cylinder block. It senses
engine knocking using a piezoelectric element.Aknocking vibration
from the cylinder block is sensed as vibrational pressure. This
pressure is converted into a voltage signal and sent to the ECM.
Freeze frame data will not be stored in the ECM for the knock
sensor. The MIL will not light for knock sensor malfunction.
The knock sensor has one trip detection logic.
On Board Diagnosis Logic
NHEC0187
Malfunction is detected when an excessively low or high voltage
from the knock sensor is sent to ECM.
Possible Cause
NHEC0491
I Harness or connectors
(The knock sensor circuit is open or shorted.)
I Knock sensor
SEF058Y
DTC Confirmation Procedure
NHEC0188
NOTE:
If “DTC Confirmation Procedure” has been previously conducted,
always turn ignition switch “OFF” and wait at least 10 seconds
before conducting the next test.
TESTING CONDITION:
Before performing the following procedure, confirm that bat-
tery voltage is more than 10V at idle.
WITH CONSULT-II
NHEC0188S01
1) Turn ignition switch “ON” and select “DATA MONITOR” mode
with CONSULT-II.
2) Start engine and run it for at least 5 seconds at idle speed.
3) If DTC is detected, go to “Diagnostic Procedure”, EC-340.
DTC P0325 KNOCK SENSOR (KS)
Component Description
EC-338
Loading ...
Loading ...
Loading ...