ECU MITSUBISHI 3000GT 1995 2.G User Guide

Downloaded from www.Manualslib.com manuals search engine 54-166CHASSlS ELECTRICAL - Radio and Tape Player
IA-7Some noise appears when there is vibration or shocks during traveling.
‘d ~
Are connectors properly connected?
YesNo
---+ Ensure proper connection
t
Does noise appear when the radio switch is turned on while theNovehicle is stopped and the radio is struck while tuned away fromLa station?
YesStatic electricity noise:
Body static electric from the shock absorber rubber bushings used
to prevent vibration, tires, etc. occurs because of separation fromthe ground, causing a buzzing noise.
Since no measures can be taken on the radio side, steps shouldbe taken to discharge the static electricitv of the vehicle bodv.
tIs the radio correctly grounded?
(Is the mounting screw tightened securely?)
1 Yes
tIs the antenna correctly grounded? (If noise appears when the Nocantenna is moved, this means the ground is not securely con-
nected.)
If rust is present on the antenna ground screw, clean and tightenthe ground securely.
Yes
1 Reoair or reolace radio.1
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Downloaded from www.Manualslib.com manuals search engine CHASSIS ELECTRICAL - Radio and Tape Player54-167
A-8Noise sometimes appears on FM during traveling.
NoIs the antenna completely extended?
Yes
t Check the antenna itself.
(Refer to E-l, 2.)
+Does the problem clear up whenre
1 No
Yes
iDoes the problem appear only in certain locations and only with yes
certain stations?
No
~ Due to electrical field conditions. (Multipath
noise*, fading noise*).
Are connectors property connected?
Yes
Check connector connections.1
tDoes noise appear when the radio switch is turned on while the
vehicle is stopped
and the radio is struck while tuned away froma station?
Yes
No*Static electricity noise:Sody static electric from the shock absorberrubber bushings used to prevent vibration, tires,etc. occurs because of separation from the
ground, causing a buzzing noise.
Since no measures can be taken on the radioside, steps should be taken to discharge the
static
electricitv of the vehicle bodv.
Is the radio body correctly grounded?
No(Is the mounting screw tightened securely?
)
Yes
-) Tighten the screw securely.I
Is the antenna correctly grounded? (If noise appears when the antennais moved, this means the ground is not securely connected.)
Yes
If rust is present on the antenna ground screw,clean and tighten the ground securely.
*
1 Repair or replace radio.1
About multipath noise and fading noise
Because the frequency of FM waves is extreme-
ly high, it is highly susceptible to effects from
geological formations and buildings. These ef-
fects disrupt the broadcast signal and obstruct
‘reception in several ways.l Multipath noise
This describes the echo that occurs when the
broadcast signal is reflected by a large obstruc-
tion and enters the receiver with a slight time
delay relative to the direct signal (repetitious
buzzing).l Fading noise
This is a buzzing noise that occurs when the
broadcast beam is disrupted by obstructing ob-
jects and the signal strength fluctuates intricately
within a narrow range.
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Downloaded from www.Manualslib.com manuals search engine 54-168CHASSIS ELECTRICAL - Radio and Tape Player
IA-9Ever-present noise.I
Noise is often created by the following factors, and
often the radio is OK when it is checked individually.l Traveling conditions of the vehicle
l Terrain of area traveled through
l Surrounding buildings
l Signal conditions
l Time periodFor this reason, if there are still problems with noiseeven after the measures described in steps A-l
to A-8 have been taken, get information on the fac-
tors listed above as well as determining whetherthe problem occurs with AM or FM, the station
names, frequencies, etc., and contact a service cen-
ter.B. RADIO
IB-lNo power is supplied when the switch is set to ON.IIIIs multi-purpose fuse No. 4 blown or is the circuit open?Replace fuse or repair harness.
NoIs the connector at the back of the radio connected properly?
Yes
Connect connector securely.1t
NoDisconnect and check the connector at the rear of the radio. Is the ACC / Repair harness.
power (12 V) being supplied to the radio?J
I
Yes
1 Reoair or reolace radio.
1 B-2No sound from one speaker.ICheck to see if there is any sound when attached
to another radio.
I-=----[Repair or replace radio unit.
No
checkthespeakerharnessfor conductance.
out.*Speakarj
NoRepair speaker harness and ensure
proper connection of relay connectors.
tRepair or replace speaker.
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Downloaded from www.Manualslib.com manuals search engine CHASSIS ELECTRICAL - Radio and Tape Player54-I 71
1 B-5Distortion on AM or on both AM and FM.Are the speaker cords in contact with the cone paper?
NoRemove cords away from cone
pa-per.Remove the speakers and check for tom cone paper or foreign objects.
INoRepair or replace speakers.
iCheck for deformation with speaker installed.
No
Yes- Install speaker securely.
\ Repair or replace radio.j
B-6Distortion on FM onlyDoes the distortion persist when the radio is tuned to another
Nostation?
Yes
)- Due to weak electrical field of radiostation
YesDoes distortion increase or decrease when the vehicle is moved? ,
/ NoDue to multipath noise
1
1Repair or replace radio.
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Downloaded from www.Manualslib.com manuals search engine CHASSIS ELECTRICAL - Radio and Tape Player54-179/
L
D-2No sound.1I
Does it play if an existing proper CD is inserted? )Yes-Replace defective CD.
No
No
FYes
ture, and recheck operation.*IDoes it operate properly?
II NoAre the radio set and CD player connected
C;_TRepair or replace CD player.
-(The combined radio cassette must operate
properly.)
D-3CD sound skips.
1.Sound sometimes skips during parking.
iIs CD face scratched or dirty?CD is defective, or clean CD.
NoDoes it play properly if CD is replaced with an existing proper CD?
Yes
Repair or replace CD player..
1 Replace CD.
2.Sound sometimes skips during driving.(Stop vehicle, and check it.)
(Check it by using a proper CD which is free of scratch, dirt or other abnormality.)
Does sound skip when the side of
YesNo
tSecurely mount the CD player.
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Downloaded from www.Manualslib.com manuals search engine CHASSIS ELECTRICAL - Radio and Taste Plaver
D-4Sound quality is poor.1Does it play properly if another proper CD is loaded?
No
Replace CD.Repair or replace CD player.
1 D-5CD will not be ejected.Is the key switch (ignition key) at ACC or ON?
YesTurn the key to ON.
tIs the combined amplifier or radio set connected securely?
YesSecurely connect the subjected one.
If CD is not ejected, don’t reject it.
The player may be damaged. Therefore, contact a service
shop for reoairs.
D-6No sound from one speaker.Is CD player securely connected to the combined radio set?
YesSecurely connect them.
Does it play properly if another CD player is combined?
NoRepair or replace CD player.
IRepair or replace the combined radio set.
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Downloaded from www.Manualslib.com manuals search engine CHASSIS ELECTRICAL - Radio- and TaDe Plaver54-183
Card
Security code216N1034
Typical name card
A Cards
PROCEDURE FOR INPUTOFSECURITYCODE FOR RADIOAND TAPE PLAYER WITH ANTI-THEFT SYSTEM
The radio and tape player does not operate in the following
states.
(1) Power supply to the radio and tape player has been sus-
pended for more than one hour continuously by removing
the cable from the battery terminal or disconnecting the
harness connectors.
(2) The power supply to the radio and tape player has been
suspended for more than one hour owing to blown fuse
or discharged battery.(3) The radio and tape player has been replaced.
If the radio and tape player does not operate for these causes,
input the security code by the following procedure to operate
it.
1.Using any of the following methods, confirm the security
code.
(1)
Read the security code indicated on the cards retained
by the user.
(2) If the security code is unknown owing to the user’s
loss of the cards,a. Remove the audio panel and then pull out the
radio and tape player partially.
b.Read the serial No. shown on the name card of
the radio and tape player.
c.Look up the anti-theft code corresponding to the
serial number in the serial number-anti-theft code
table; or, make inquiries to Mitsubishi Motor Sales
of America, Inc.(3) When the radio and tape player is replaced
Read the security code on the cards attached to the
upper surface of the replacement radio and tape player.
NOTE
Deliver the cards (two) to the user.
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Downloaded from www.Manualslib.com manuals search engine 54-184CHASSIS ELECTRICAL - Radio and Tape Plaver
TYPE 1
POWER button Disp’ayPROG button
TYPE 2
DisplayPROG button
Memoryselect
button
POWER button
TYPE 3
PROG button
ZHllA004
Memory,1r select
POW’ER buttonIDisplayH’llAlM
section00002402
Typical security code “5283”
ZHllFOOl
2.Return power supply for the radio and player to the normal
state.3. Turn the ignition key to the “ACC” position.
4. Press the POWER button, and “code” will be displayed
on the display.
5.Press No.1 through No.4 memory select buttons and setthe
4-digit security code indicated on the card.
Every time each digit key is pressed, the number changes
as follows:
40 +l +2--e 9+0 **-
6.Press the PROG button. After a beep is heard, the radioand tape player will be in the operating state.
7. If the input security code does not agree with that in
memory, “1 Err” is displayed on the display. In a few se-conds, it will change to “code”. So, repeat steps 4 and
5.
NOTE
(1) The security code can be set three times at the most.
(2) The second error is displayed as “2 Err”. If the third
error is made, “3 Err” is displayed and then it changes
to “OFF”.
(3) When setting is attempted four or more times, keeping
the ignition key in the “ACC” or “ON” position for about
one hour will automatically erase the “OFF” display.
\
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Downloaded from www.Manualslib.com manuals search engine CHASSIS ELECTRICAL - Radio and Tape Player54-I 89
Antenna going downAntenna going up
16FO203
16F019800002406
REMOVAL SERVICE POINT
+A,REAR SEAT CUSHION REMOVAL
Raise and remove the seat cushion with the lever pulled.
INSTALLATION SERVICE POINT
.AqREAR SEAT CUSHION INSTALLATION
(1) Securely fit the attachment wire of the seat cushion
under the seatback.
(2) Pass the inner seat belt buckles through the cushion.
(3) Securely fit the lock plates of the seat cushion into
the holes in the floor.
INSPECTION
ANTENNA MOTOR INSPECTION
Disconnect the motor antenna control unit connector, connect
the positive terminal of the power supply to terminal (1) and
connect the negative terminal to terminal (4) to check that
the antenna goes up, and that when the connections are re-
versed, the antenna goes down.
MOTOR ANTENNA CONTROL UNIT INSPECTION
(1) Connect the harness connector to the motor antenna.
(Body harness)
(2) Disconnect the antenna motor connector.
(3) With the ignition switch in the ACC or ON position, operate
the radio switch and check the voltage between the termi-
nals during the period when the antenna is going up or
going down.
I
I
Antenna operating
directionTerminals to checkVoltage (V)
I
Down
UPl-310-13
3-410-13
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Downloaded from www.Manualslib.com manuals search engine CHASSIS ELECTRICAL - Rear Window Defogger54-195
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(C-79)FRONT SIDE (c-83)(D-06)(D-41) (D-42)(D-44)
HR13MOlAB
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