Description
The camshaft position sensor (PHASE) senses the retraction of camshaft (INT) to identify a particular cylinder. The camshaft position sensor (PHASE) senses the piston position.
When the crankshaft position sensor (POS) system becomes inoperative, the camshaft position sensor (PHASE) provides various controls of engine parts instead, utilizing timing of cylinder identification signals.
The sensor consists of a permanent magnet and Hall IC.
When engine is running, the high and low parts of the teeth cause the gap with the sensor to change.
The changing gap causes the magnetic field near the sensor to change.
Due to the changing magnetic field, the voltage from the sensor changes.
ECM receives the signals as shown in the figure.
DTC Logic
DTC DETECTION LOGIC
NOTE: If DTC P0340 or P0345 is displayed with DTC P0643, first perform the trouble diagnosis for DTC P0643.
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 10.5 V with ignition switch ON.
2.PERFORM DTC CONFIRMATION PROCEDURE-I
If engine does not start, crank engine for at least 2 seconds.
3.PERFORM DTC CONFIRMATION PROCEDURE-I
Diagnosis Procedure
1.CHECK STARTING SYSTEM
Turn ignition switch to START position.
2.CHECK GROUND CONNECTION
3.CHECK CAMSHAFT POSITION (CMP) SENSOR (PHASE) POWER SUPPLY CIRCUIT
4.CHECK CMP SENSOR (PHASE) GROUND CIRCUIT FOR OPEN AND SHORT
5.CHECK CMP SENSOR (PHASE) INPUT SIGNAL CIRCUIT FOR OPEN AND SHORT
6.CHECK CAMSHAFT POSITION SENSOR (PHASE)
7.CHECK CAMSHAFT (INT)
Check the following.
8.CHECK INTERMITTENT INCIDENT
Component Inspection
1.CHECK CAMSHAFT POSITION SENSOR (PHASE)-I
2.CHECK CAMSHAFT POSITION SENSOR (PHASE)-II
Check resistance camshaft position sensor (PHASE) terminals as per the following.
Interior room lamp control circuit
Description
Controls each interior room lamp (ground side) by PWM signal.
NOTE: PWM signal control period is
approximately 250 Hz (in the gradual brightening/dimming).
Component Function Check
CAUTION: Before performing the diagnosis,
check that the following is normal.
Battery saver ou ...
Changing engine oil filter
1. Park the vehicle on a level surface and apply
the parking brake.
2. Turn the engine off.
3. Place a large drain pan under the oil filter B .
4. Remove clips A from the right engine protector
located inside the right wheel well and
then remove protector. Remove oil filter B
with an ...
Washing
Wash dirt off with a wet sponge and plenty of
water. Clean the vehicle thoroughly using a mild
soap, a special vehicle soap or general purpose
dishwashing liquid mixed with clean, lukewarm
(never hot) water.
CAUTION
Do not use car washes that use acid in
the detergent. Some car washes, es ...