1991 MITSUBISHI ECLIPSE wiring

I4INTRODUCTION AND MASTER TROUBLESHOOTING - Precautions before Service
mm (In.1smo59
PARTSWhen replacing parts, use MOPAR genuine parts.
VEHICLE WASHING
If high-pressure car-washing equipment or steam car-washing
equipment is used to wash the vehicle, be sure to maintain the
spray nozzle at a distance of at least 300 mm (12 in.) from anyplastic parts and all opening parts (doors, luggage compart-
ment, etc.).
SERVICING ELECTRICAL SYSTEM
1. Note the following before proceeding with work on the
electrical system.
Note that the following must never be done:
Unauthorized modifications of any electrical device or
wiring, because such modifications might lead to a vehicle
malfunction, over-capacity or short-circuit that could result
in a fire in the vehicle.
2. When servicing the electrical system, disconnect the
negative cable terminal from the batten/.
Caution1. Before connecting or disconnecting the negative
cable, be sure to turn off the ignition switch and thelighting switch.
(If this is not done, there is the possibility of
semiconductor parts being damaged.)
2. For MPI-equipped models, after completion of the
work steps [when the battery’s negative
(-) termi-
nal is connected], warm up the engine and allow it
to idle for approximately five minutes under the
conditions described below, in order to stabilize
engine control conditions, and then check to be
sure that the idling is satisfactory.
Engine coolant temperature:
85-95°C (185-203°F)
Lights, electric fans, accessories: OFF
Transaxle: neutral position
(A/T models: “N” or “P”)
Steering wheel: neutral (center) position

INTRODUCTION AND MASTER TROUBLESHOOTING - Precautions before Set&e15
F16171
Correct
Cl6385
Cl6367
Y16347WIRING HARNESSES
1.Secure the wiring harnesses by using cla’mps. However, forany harness which passes to the engine or other vibrating
parts of the vehicle, allow some slack within a range that
does not allow the engine vibrations to cause the harness
to come into contact with any of the surrounding parts.
Then secure the harness by using a clamp.
In addition, if a mounting indication mark (yellow tape) is ona harness, secure the indication mark in the specified
location.
2.If any section of a wiring harness contacts the edge of a
part, or a corner, wrap the section of the harness with tapeor something similar in order to protect it from damage.
3. When disconnecting a connector, be sure to pull only the
connector, not the harness.
4.Disconnect connectors which have catches by pressing in
the direction indicated by the arrows in the illustration.

16INTRODUCTION AND MASTER TROUBLESHOOTING - Precautions before Service
Cl6362
OOYSssOOV833
10A15A
COY5695. Connect connectors which have catches by inserting the
connectors until they snap.
9%
ELECTRICAL COMPONENTS1. When installing any of the vehicle parts, be careful not to
pinch or damage any of the wiring harnesses.
2. Sensors, relays, etc.,are sensitive to strong impacts.
Handle them with care so that they are not dropped or
mishandled.
,**3. The electronic parts used for relays, etc., are sensitive to
heat. If any service which causes a temperature of
80°C
(176°F) or more is performed, remove the part or parts in
question before carrying out the service.
FUSES AND FUSIBLE LINKS
1.If a blown-out fuse is to be replaced, be sure to use only a
fuse of the specified capacity. If a fuse of a capacity larger
than that specified is used, parts may be damaged and thecircuit may not be protected adequately.
Caution
1.If a fuse is blown-out, be sure to eliminate the causeof the problem before installing a new fuse.
;i2.Check the condition of fuse holders. If rust or dirt isfound, clean metal parts with a fine-grained sand-
paper until proper metal-to-metal contact is
made.Poor contact of any fuse holder will
often lead tovoltage drop or heating in the circuit
and colildresult in improper circuit operation.

INTRODUCTION AND MASTER TROUBLESHOOTING - Precautions before Sew&e‘37
Nominal
sizeSAE
gi:ePermissible current
In engine
Othercompart-areasment
0.3mm2AWG22-5A
0.5
mm2AWG207A13A
0.85
mm’AWG189A17A
1.25
mm2AWG1612A22A
2.0mm2AWG1416A30A
3.0mm’AWG1221A40A
5.0mm2AWG1031A54A
r ‘.
oorsas
2. If additional optional equipment is to be installed, in ttievehicle, follow the procedure listed in the
ap@@priateinstruction manual; however, be sure to pay “careful
attention to the following points:
“9:(1) In order to avoid overloading the
wiring;’ take the
electrical current load of the optional
,equipment into
consideration, and determine the appropriate .wire size:(2) Where possible, route the wiring through the existing
harnesses.(3) If an ammeter or similar instrument is to be
connectedto a live-wire circuit, use tape to protect the wire, use a
clamp to secure the wire, and make sure that there is
no contact with any other parts.
(4) Be sure to provide a fuse for the load circuit of the
optional equipment.
TUBES AND OTHER RUBBER PARTS
Be careful to avoid spilling any gasoline, oil, etc., or rubber
parts, they might be adversely affected.
LUBRICANTSIn accordance with the instructions in this Service Manual,
apply the specified lubricants in the specified locations during
assembly and installation.
!’IV/ :>,I
BRAKE FLUID
Be careful to avoid spilling any brake fluid on painted surfaces,because the paint coat might be discolored or damaged.

18INTRODUCTION AND MASTER TROUBLESHOOTING - Precautions b&ire Service
DOING SERVICE WORK IN GROUPS OF VO’bRMORE TECHNICIANS
.-I-7.IIf the service work is to be done by two or more technicians
working together, extra caution must be taken.
VoltagedistributionMaximum
voltage
NOTE ON INSTALLATION OF RADIO EQIJIPMEATeThe computers of the electronic control system has been
designed so that external radio waves will not interfere with
their operation.
However, if antenna or cable of amateur transceiver etc. is
routed near the computers, it may affect the operation of the
computers, even if the output of the transceiver is no more
than
25W.To protect each of the computers from interference by
transmitter (hum, transceiver, etc.), the following should be
observed.1. Install the antenna on the roof or rear bumper.
2.Because radio waves are emitted from the coaxial cable of
the antenna, keep it 200 mm (8 in.) away from the
computers and the wiring harness. If the cable must cross
hthe wiring harness, route it so that it runs at right angles to
the wiring harness.
3.The antenna and the cable should be well matched, and thestanding-wave ratio* should be kept low.
4.A transmitter having a large output should not be installed
in the vehicle.
5.After installation of transmitter, run the engine at idle, emit
radio waves from the transmitter and make sure that the
engine is not affected.
“STANDING-WAVE RATIO
If an antenna and a cable having different impedances are
connected, the input impedance Zi will vary in accordance with
the length of the cable and the frequency of the transmitter,
and the voltage distribution will also vary in accordance with
the location.
The ratio between this maximum voltage and minimum voltage
is called the standing-wave ratio. It can also be represented bythe ratio between the impedances of the antenna and the
cable.The amount of radio waves emitted from the cable increases
as the standing-wave ratio increases, and this increases the
possibility of the electronic components being adversely
affected.

BRAKES - Anti-lock Braking System Troubleshooting5-13With the ignition key in the “ON”
posi-Nol
tion, do other warning lights illuminate?
II
YesCheck fuse No. 11. If it is
blown, correct the cause of
the blown fuse and then
replace the fuse.
Does voltage between
har-NoThe harness between thenessconnector terminalcombination meter from
No. 14 and ground indicate) fuse No.1 1 is broken.
battery voltage?
II
Yes
Repair harness.Circuit in combination meter
is broken.Repair or replace
com-
* bination meter.
Turn the ignition switch OFF an
(check.
IIs the ABS warning light normal? (Check
for burned bulb.)
No L A&zed%rning light bulb -Are instrument panel wiring harness,
_Noengine compartment wiring harness,~ Connect connectors firmly.
(Check for pins pulled out or
bent, repair as needed.) body wiring harness and ABS wiring
harness connectors connected properly?drive circuits. Check and repair both

5-28BRAKES -Anti-lock Braking System Troubleshooting
With the ignition key in the “ON”
posi-NoCheck fuse No.ll. If it is
tion, do other warning lights illuminate?blown, correct the cause of
the blown fuse and then
replace the fuse.
YesTurn the ignition switch OFF and
Does voltage between
har-NOThe harness between the
nessNo. 14 and ground indicate
battery voltage?) fuse No.1 1 is broken.
YesCircuit in combination meter
is broken.
tRepair or replace com-
bination meter.II
IIIs the ABS warning light normal? (CheckNO) ABS warning light bulbReplace ABS warning
for burned bulb.)
burned.* light bulb.
I
Yes
- No
Are instrument panel wiring harness,
engine compartment wiring harness,
body wiring harness and ABS wiring
harness connectors connected properly?
c Connect connectors firmly.
(Check for pins pulled out or
bent, repair as needed.)
YesBroken wire in ECU, valve relay or both
drive circuits. Check and repair both
circuits.

5-42BRAKES - Service Adjustment Procedures
BRAKE FLUID LEVEL SENSOR CHECKNO5FBAB(1) Connect a circuit tester to the brake fluid level sensor.
4(2) Move the float from top to bottom and check for
.-,’continuity.
(3) The brake fluid level sensor is in good condition if there is
no continuity when the float surface is above “A”, and if
there is continuity when the float
surface is below “A”.
PARKING BRAKE LEVER STROKE CHECK NWFEAJ
1.Pull the parking brake lever with a force of approx. 200 N(45
Ibs.), and count the number of notches.
Caution
The 200 N (45 Ibs.) force of the parking brake lever must
be strictly observed.
Standard value: 5-7 notches
2.If the parking brake lever stroke is not the standard value,
adjust as described below.
(1) Remove the carpet in the floor console.
(2) Loosen the adjusting nut to the end of the cable rod,
fithus freeing the parking brake cable.
(3) With the engine idling, firmly depress the brake pedal
five or six times and confirm that the pedal stroke stops
changing.
NOTEIf the pedal stroke stops changing, it indicates that the
automatic adjusting mechanism has functioned proper-ly to adjust the clearance between the pads and the
disc to the correct value.
(4) Check to be sure that the clearance between the
stopper and the parking brake lever at the caliper side isas shown in the figure.
NOTEIf the clearance between the parking brake lever and
the stopper exceeds 2 mm
(078 in.), the probable
causes are brake cable sticking, improper wiring, or a
malfunction of the automatic adjuster (within the rear
brake caliper), so it is necessary to check the parking
-brake cable and to disassemble and check the rear
-brake caliper.
(5) Turn the adjusting nut to adjust the parking brake lever
stroke to within the standard value range.