DTC Logic
DTC DETECTION LOGIC
DTC No. | CONSULT screen terms (Trouble diagnosis content) | DTC detecting condition | Possible cause |
P0327 | KNOCK SEN/CIRC-B1 (Knock sensor 1 circuit low bank 1) | An excessively low voltage from the knock sensor is sent to ECM. |
|
P0328 | KNOCK SEN/CIRC-B1 (Knock sensor 1 circuit high bank 1) | An excessively high voltage from the knock sensor is sent to ECM. |
DTC CONFIRMATION PROCEDURE
1.PRECONDITIONING
If DTC Confirmation Procedure has been previously conducted, always perform the following procedure before conducting the next test.
TESTING CONDITION:
Before performing the following procedure, confirm that battery voltage is more than 10 V at idle.
>> GO TO 2.
2.PERFORM DTC CONFIRMATION PROCEDURE
Is 1st trip DTC detected? YES >> Proceed to EC-275, "Diagnosis Procedure".
NO >> INSPECTION END
Diagnosis Procedure
1.CHECK KNOCK SENSOR GROUND CIRCUIT
Is the inspection result normal? YES >> GO TO 2.
NO >> Repair or replace error-detected parts.
2.CHECK KNOCK SENSOR INPUT SIGNAL CIRCUIT
Is the inspection result normal? YES >> GO TO 3.
NO >> Repair open circuit or short to ground or short to power in harness or connectors.
3.CHECK KNOCK SENSOR
Check knock sensor. Refer to EC-276, "Component Inspection (KS)".
Is the inspection result normal? YES >> Check intermittent incident. Refer to GI-39, "Intermittent Incident".
NO >> Replace knock sensor. Refer to EM-94, "Exploded View".
Component Inspection (KS)
1.CHECK KNOCK SENSOR
NOTE:
It is necessary to use an ohmmeter which can measure more than 10 MΩ.
CAUTION:
Do not use any knock sensors that have been dropped or physically damaged. Use only new ones.
Is the inspection result normal? YES >> INSPECTION END
NO >> Replace knock sensor. Refer to EM-94, "Exploded View".
Symptom diagnosis
Multi av system
Symptom table
Related to audio
Related to hands-free phone
Before performing diagnosis, confirm that the cellular phone being used
by the customer is compatible with
the vehicle.
It is possible that a malfunction is occurring due to a version change
of the ph ...
Precaution
Precaution for Supplemental Restraint System (SRS) "AIR BAG" and "SEAT
BELT PRE-TENSIONER"
The Supplemental Restraint System such as “AIR BAG” and “SEAT BELT PRE-TENSIONER”,
used along
with a front seat belt, helps to reduce the risk or severity of inju ...
General Precautions
Always use a 12 volt battery as power source.
Do not attempt to disconnect battery cables while engine is
running.
Before connecting or disconnecting the ECM harness connector,
turn ignition switch OFF and disconnect negative battery
cable. Failure to do so may damage the ECM because
...