1997 MITSUBISHI TRITON ECO mode

GENERAL ± How to Use Troubleshooting/Inspection Service Points00-9
HOW TO USE THE INSPECTION PROCEDURES
The causes of a high frequency of problems occurring in electronic circuitry are generally the connectors,
components, the ECU and the harnesses between connectors, in that order. These inspection procedures
follow this order, and they first try to discover a problem with a connector or a defective component.

Indicator does not turn on or off even if control
mode switch is pressed.

Indicator switch should not be illuminated is
illuminated.Probable cause
OK
OK
OK
Measure at switch connector A-44

Disconnect the connector, and measure at the harness
side.

Voltage between terminal 6 ± earth and terminal 8 ±
earth
OK:Approx. 5V
OK
NG
Check the following connector. A-44
Repair
OK
Check trouble symptom.
Replace the ECS-ECU.
In the above cases, the ECS switch circuit is defective or the indicator
circuit is defective.
CHECKING PROCEDURE 4
2. Indicates inspection carried out using the
MUT-II.
Indicates the operation and inspection proce-
dures.
Indicates the OK judgement conditions.
3. Detailed inspection procedures (methods)
such as component inspection and circuit
inspection are listed on a separate page, and
are given here for reference.
5. Inspect the contact condition at each connector terminal.
(Refer to Connector Inspection Service Points.)
The connector position can be located in the wiring diagram in the
electrical wiring manual by means of this symbol.
Caution
After carrying out connector inspection, always be sure to
reconnect the connector as it was before.
6. Confirm that there are trouble symptoms. If trouble symptoms have
disappeared, the connector may have been inserted incorrectly and the
trouble symptom may have disappeared during inspection.
If it seems that trouble symptoms still remain, proceed to the next page of
instructions.
7. If trouble symptoms still remain up to this stage, there is a possibility that there is an
open or short circuit in the harness between the connectors, so check the harness.
Alternatively, the cause may be a defective ECU, so try replacing the ECU and check
if the trouble symptom disappears.
NGECU switch component inspection (Refer to P.3-44.)
NG
1. Comments on the diagnosis code or trouble
symptom above.
MUT-II Data list
17 Control mode selection switch
OK:Voltage changes between approx. 0V
approx.
2.5V
approx. 5V when the switch is operated.
4. Indicates voltage and resistance to be measured at a particular
connector.
(Refer to Connector Measurement Service Points.)
The connector position can be located in the wiring diagram in the
electrical wiring manual by means of this symbol.
Indicates operation and inspection procedures, inspection terminals
and inspection conditions.
Indicates the OK judgement conditions.
HARNESS INSPECTION
Check for an open or short circuit in the harness between the terminals which were defective according
to the connector measurements. Carry out this inspection while referring to the electrical wiring manual.
Here, ªCheck harness between power supply and terminal xxº also includes checking for blown fuses.
For inspection service points when there is a blown fuse, refer to ªInspection Service Points for a Blown
Fuse.º
MEASURES TO TAKE AFTER REPLACING THE ECU
If the trouble symptoms have not disappeared even after replacing the ECU, repeat the inspection procedure
from the beginning.

MPI ± General Information13A-4
OTHER CONTROL FUNCTIONS
1. Fuel Pump Control
Turns the fuel pump relay ON so that current
is supplied to the fuel pump while the engine
is cranking or running.
2. A/C Relay Control
Turns the compressor clutch of the A/C
ON and OFF.3. Purge Control Solenoid Valve Control
Refer to GROUP 17.
4. EGR Control Solenoid Valve Control
Refer to GROUP 17.
GENERAL SPECIFICATIONS
ItemsSpecifications
Throttle bodyThrottle bore mm54
Throttle position sensorVariable resistor type
Idle speed control servoStepper motor type
(Stepper motor type by-pass air control system with the air
volume limiter)
Idle position switchRotary contact type, within throttle position sensor
Engine-ECUIdentification model No.E2T64271 <4G63 - Vehicles without immobilizer system>
E2T64277 <4G63 - Vehicles with immobilizer system>
E2T64272 <4G64 - Vehicles without immobilizer system>
E2T64276 <4G64 - Vehicles with immobilizer system>
SensorsAir flow sensorKarman vortex type
Barometric pressure sensorSemiconductor type
Intake air temperature sensorThermistor type
Engine coolant temperature sensorThermistor type
Oxygen sensorZirconia type
Vehicle speed sensorMagnetic resistive element type
Top dead centre sensorHall element type
Crank angle sensorHall element type
Power steering fluid pressure switchContact switch type
ActuatorsControl relay typeContact switch type
Fuel pump relay typeContact switch type
Injector type and numberElectromagnetic type, 4
Injector identification markCDH275
EGR control solenoid valveDuty cycle type solenoid valve
Purge control solenoid valveON/OFF type solenoid valve
Fuel pressure
regulatorRegulator pressure kPa328

BASIC BRAKE SYSTEM ± General Information35A-3
GENERAL INFORMATION35100010120
The brake system has high reliability and durability
which maintains excellent braking performance and
braking feeling. The main features are as follows.

A dual type master cylinder is equipped in all
models.

Both a single type and a tandem type brake
booster have been adopted.
The following type of brake have been adopted.
Front: Floating caliper, 2-piston, ventilated disc
brakes (V4-W43, V5-W43) or floating caliper,
1-piston, ventilated disc brakes (V4-S60,
V5-S60)
Rear: Leading-trailing type drum brake.
Items2WD
vehicles>2WD
vehicles>4WD
vehicles>4WD
vehicles>
Master cylinder I.D. mm23.823.823.823.8
Brake booster effective dia.
of power cylinder mm230
205 + 230*230
180 + 205*205 + 230180 + 205
Brake booster boosting ratio5.05.07.07.0
Load sensing proportioning
valve decompression ratio0.150.150.150.15
Front brake disc effective
dia. mm200200222
228*222
228*
Front brake wheel cylinder
I.D. mm60.3
42.9*60.3
42.9*60.3
42.9*60.3
42.9*
Rear drum brake drum I.D.
mm254254270270
Rear drum brake wheel
cylinder I.D. mm23.823.823.823.8
Rear drum brake lining
thickness mm4.74.74.74.7
NOTE
*: Vehicles with ABS.

CHASSIS ELECTRICAL ± Ignition Switch and Immobilizer System54-24
3. Use the ignition key that is to be registered to turn on
the ignition switch.
4. Use the MUT-II to register the ID code. If you are
registering two or more codes, use the next key to the
registered to turn on the ignition switch without
disconnecting the MUT-II.
5. Disconnect the MUT-II. This complete the registration
operation.
6. Check that the engine can be started with each of the
ignition keys.
7. Check the diagnosis output from the engine-ECU, and
erase code No.54 if it appears.
Resetting the code to the factory setting

Refer to the MUT-II INSTRUCTION MANUAL on handling
the MUT-II.
NOTE
Resetting the code to the factory setting refers to the process
of clearing the identification code which has been recorded
in the fuel cut valve controller and switching the controller
to learning mode. After this resetting is carried out, the
identification code in the immobilizer-ECU will be recorded
in the controller the next time the ignition switch is turned
to the ON.
1. Connect the MUT-II to the diagnosis connector.
Caution
Turn off the ignition switch before connecting or
disconnecting of the MUT-II.
2. Turn on the ignition switch.
3. Use the MUT-II to reset the code to the factory setting.
NOTE
Approximately 16 minutes are required to complete
resetting the code to the factory setting.
4. Disconnect the MUT-II

10
2.
Exit conditions from the adjustment mode
The ETACS-ECU cancels the adjustment mode when any of the following conditions is satisfied:
•
Diagnosis control: OFF (Disconnect the MUT-II>)
•
Key reminder switch: ON (Pull out the ignition key.)
•
Ignition switch: Other than LOCK (OFF)
•
Door switch: ON (Open the door)
•
After the ETACS_ECU has entered the adjustment mode, no adjustment is made within 3 minutes (If
any adjustment is made within 3 minutes, the ETACS-ECU monitors an adjustment operation for
other 3 minutes.
•
Other warning buzzer(s) sounds
3.
Adjustment of functions
Function Adjustment procedure
Keyless entry answerback function When the transmitter lock switch is turned on twice continuously
within 2 seconds, the lock answerback function toggles on and off.
•
If the function toggles on, the buzzer sounds once (default con-
dition).
•
If the function toggles off, the buzzer sounds twice,
When the transmitter unlock switch is turned on twice continuously
within 2 seconds, the unlock answerback function toggles on and
off.
•
If the function toggles on, the buzzer sounds once (default con-
dition).
•
If the function toggles off, the buzzer sounds twice,
Initialisation of all the ETACS func-
tions (From deactivation to activa-
tion)When the tailgate switch remains on for more than 20 seconds, th
buzzer sounds twice and he answer-back function of the keyless
entry system is initialised.
The buzzer will sound in 10 seconds (indicating that the ETACS-
ECU enters the adjustment mode), but the washer switch must re-
mains off for 20 seconds in order to initialise all the functions.
If the tailgate switch remains on for more than 20 seconds without
entering the adjustment mode, the system enters the adjustment
mode in 10 seconds, but does not initialise all of the functions.
INSPECTION CHART FOR TROUBLE SYMPTOMS
Trouble symptom Inspection procedure No. Reference page
None of the doors can be locked or unlocked using th
transmitter.142-3
All of the doors can be locked and unlocked using th
transmitter, but the room lamp or turn-signal lamp does
not flash or illuminate. (However, the room lamp oper-
ates normally when the doors are opened and closed.)242-4
Encrypted codes cannot be registered. 3 42-5
42-2BODY – Keyless entry system