Description
The knock sensor is attached to the cylinder block. It senses engine knocking using a piezoelectric element. A knocking vibration from the cylinder block is sensed as vibrational pressure. This pressure is converted into a voltage signal and sent to the ECM.
DTC Logic
DTC DETECTION LOGIC
DTC CONFIRMATION PROCEDURE
1.PRECONDITIONING
If DTC Confirmation Procedure has been previously conducted, always perform the following before conducting the next test.
TESTING CONDITION: Before performing the following procedure, confirm that battery voltage is more than 10 V at idle.
2.PERFORM DTC CONFIRMATION PROCEDURE
Diagnosis Procedure
1.CHECK GROUND CONNECTION
2.CHECK KNOCK SENSOR GROUND CIRCUIT FOR OPEN AND SHORT
3.DETECT MALFUNCTIONING PART
Check the following.
4.CHECK KNOCK SENSOR INPUT SIGNAL CIRCUIT FOR OPEN AND SHORT
5.DETECT MALFUNCTIONING PART
Check the following.
6.CHECK KNOCK SENSOR
7.CHECK INTERMITTENT INCIDENT
Component Inspection
1.CHECK KNOCK SENSOR
CAUTION: Never use any knock sensors that have been dropped or physically damaged. Use only new ones.
Interior room lamp control system
System Diagram
System Description
OUTLINE
Interior room lamps* are controlled by interior room lamp timer
control function of BCM.
*:Front room/map lamp assembly, foot lamps and
rear personal lamps (when front room/map lamp assembly switch is in DOOR
position).
Trunk room lamp is ...
Checking tire pressure
1. Remove the valve stem cap from the
tire.
2. Press the pressure gauge squarely
onto the valve stem. Do not press too
hard or force the valve stem sideways,
or air will escape. If the hissing
sound of air escaping from the tire is
heard while checking the pressure,
reposition the gaug ...
S connector circuit
Description
The starter motor magnetic switch is supplied with power when the ignition
switch is turned to the START position while the selector lever is in the P
or N position.
Diagnosis Procedure
CAUTION: Perform diagnosis under the condition that
engine cannot start by the fo ...