Mitsubishi Montero Sport (2004+). Manual - part 561
RADIO AND TAPE PLAYER
TSB Revision
CHASSIS ELECTRICAL
54-231
INSPECTION PROCEDURE 16: Distortion on FM Only.
.
DIAGNOSIS
STEP 1. Check that the distortion persists when
the radio is turned to another station.
Q: Does the distortion persist when the radio is
turned to another station?
YES :
Go to Step 2.
NO :
The signal from that station is too weak.
STEP 2. Check that the distortion increases or
decreases when the vehicle is moved.
Q: Does distortion increase or decrease when the
vehicle is moved?
YES :
The cause may be multipath noise.
NO :
Repair or replace the radio. Check that a
distortion is resolved.
INSPECTION PROCEDURE 17: Using the Auto Select Function, too Few Automatic Stations are
Selected.
.
DIAGNOSIS
STEP 1. Consider the number of radio stations.
Check that there are enough in the area.
Q: Consider the number of radio stations. Are there
enough in the area?
YES :
Go to Step 2.
NO :
Confirm automatic selection selects the
strongest signals in the area. If not, go to
Step 3.
STEP 2. Consider the distance to the radio
stations. Check that the transmitting antennas
are within 2 miles.
Q: Consider the distance to the radio stations. Are the
transmitting antennas within 2 miles?
YES :
Go to Step 3.
NO :
Confirm automatic selection selects the
strongest signals in the area. If not, go to
Step 4.
STEP 3. Make sure that the check is being
conducted under special field conditions.
Q: Is the check being conducted under special
electrical field conditions (such as in an
underground garage or inside a building)?
YES :
Go to Step 4.
NO :
Go to Step 5.
STEP 4. Check that proper performance is
obtained when the vehicle is moved.
Q: Is proper performance obtained when the vehicle is
moved?
YES :
The auto-select function should operate
normally.
NO :
Go to Step 5.
STEP 5. Check that the antenna plug is
connected to the radio properly.
Q: Is the antenna plug connected to the radio
properly?
YES :
Go to Step 6.
NO :
The antenna plug is reconnected to the
radio properly. The auto-select function
should operate normally.
STEP 6. Check that the problem disappears when
another radio is used.
Q: Does the problem disappear if another radio is
used?
YES :
Replace the radio. The auto-select function
should operate normally.
No :
Move the vehicle in an area with good radio
signals. Then go to Step 1 .