1997 MITSUBISHI TRITON bulb
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MPI ± Troubleshooting13A-25
INSPECTION PROCEDURE 3
The engine warning lamp does not illuminate right after
the ignition switch is turned to the ON position.
Probable cause
Because there is a burnt-out bulb, the engine-ECU causes the engine warning lamp
to illuminate for five seconds immediately after the ignition switch is turned to ON.
If the engine warning lamp does not illuminate immediately after the ignition switch
is turned to ON, one of the malfunctions listed at right has probably occurred.Burnt-out bulb
Defective warning lamp circuit
Malfunction of the engine-ECU
MUT-II Data list
16 engine-ECU power supply voltage (Refer to P.13A-58.)NGCheck the engine-ECU power supply and earth circuit.
(Refer to P.13A-53, INSPECTION PROCEDURE 42.)
OK
Measure at the engine-ECU connector C-50.
Disconnect the connector, and measure at the harness side.
Earth the terminal No. 36.
OK:The engine warning lamp illuminates.OKCheck the following
connector. C-50.NG
Repair
OK
Check trouble symptom.
NG
Replace the engine-ECU.
NG
Check a burnt-out bulb.NG
Replace
OK
Measure at the combination meter connector C-06.
Disconnect the connector, and measure at the harness side.
Voltage between 43 and earth (Ignition switch: ON)
OK:System voltageNGCheck the engine warning lamp power supply circuit, and repair
if necessary.
OK
Check the following connectors.
C-04, C-06, C-19, C-50NG
Repair
OK
Check trouble symptom.NGCheck the harness wire between combination meter and engine-
ECU, and repair if necessary.
INSPECTION PROCEDURE 4
The engine warning lamp remains illuminating and never
goes out.
Probable cause
In cases such as the above, the cause is probably that the engine-ECU is detecting
a problem in a sensor or actuator, or that one of the malfunctions listed at right has
occurred.Short-circuit between the engine warning lamp and
engine-ECU
Malfunction of the engine-ECU
MUT-II Self-Diag code
Are diagnosis codes displayed?Ye sRefer to P.13A-10, INSPECTION CHART FOR DIAGNOSIS
CODES
No
Measure at the combination meter connector C-04.
Disconnect the connector, and measure at the harness side.
Disconnect the engine-ECU connector
Continuity between 8 and earth
OK:No continuityNGCheck the harness wire between combination meter and engine-
ECU connector, and repair if necessary.
OK
Replace the engine-ECU.
Page 619 of 1310
ABS <2WD> ± Troubleshooting35B-16
Inspection Procedure 3
When ignition key is turned to ºONº (engine stopped),
ABS warning lamp does not illuminate.
Probable cause
When current flows in the ABS-ECU, the valve relay turns from off to on, off and
back to on again as the initial check. So the ABS warning lamp will illuminate twice
when the valve relay is off even if there is a problem with the circuit between the
ABS warning lamp and the ABS-ECU.
Therefore, if the lamp does not illuminate, the cause may be: an open circuit in the
lamp power supply circuit, a blown lamp bulb, an open circuit in both the circuit between
the ABS warning lamp and the ABS-ECU and in the circuit between the ABS warning
lamp and the valve relay.Blown fuse
Burnt out ABS warning lamp bulb
Malfunction of wiring harness or connector
OK
Check trouble symptoms.NGReplace the combination meter. NG
Repair
OK
Check the following connectors.
C-88, C-79, C-06, C-05 and C-02
OK
Check the harnesses between the valve
relay and connector C-02 and between
the ABS-ECU and connector C-02. Re-
pair if necessary.
OK
Measure at connector C-02:
Disconnect the connector and
measure at the male pin.
Ignition switch: ON
Does the ABS warning lamp
illuminate when terminal (3) is
earthed?
OK:IlluminatesNGCheck whether the ABS warning lamp
bulb is burnt out.NGReplace the ABS warning lamp bulb.
Fuse inspection, Multi-purpose fuse No.
11NGRefer to GROUP 00 ± Inspection Ser-
vice Points for a Blown Fuse.
Inspection Procedure 4
Even after the engine is started, the ABS warning lamp
remains illuminated.
Probable cause
The cause is probably a short-circuit in the ABS warning lamp illumination circuit.Malfunction of combination meter
Malfunction of ABS-ECU
Malfunction of wiring harness
NOTE
This trouble symptom is limited to cases where communication with the MUT-II is possible (ABS-ECU
power supply is normal) and the diagnosis code is a normal diagnosis code.
No
Check the harnesses between the combination meter and the ABS-
ECU and between the combination meter and the valve relay. Repair,
if necessary.
No
Disconnect ABS-ECU connector C-64.
Disconnect valve relay connector A-39.
Ignition switch: ON
Does the ABS warning lamp switch off?Ye sReplace the ABS-ECU.
Disconnect connector C-02 and turn the ignition switch to ON.
Does the ABS warning lamp remain illuminated?Ye sReplace the combination meter.
Page 851 of 1310
54-2
MULTI-METER 35. . . . . . . . . . . . . . . . . . . . .
TROUBLESHOOTING 35. . . . . . . . . . . . . . . . . . .
ON-VEHICLE SERVICE 36. . . . . . . . . . . . . . . . .
Voltmeter Simple Test 36. . . . . . . . . . . . . . . . . . . .
MULTI-METER 37. . . . . . . . . . . . . . . . . . . . . . . . . .
OUTSIDE THERMO SENSOR 38. . . . . . .
SERVICE SPECIFICATIONS 38. . . . . . . . . . . . .
OUTSIDE THERMO SENSOR 38. . . . . . . . . . . .
HEADLAMP* 39. . . . . . . . . . . . . . . . . . . . . . .
SERVICE SPECIFICATIONS 39. . . . . . . . . . . . .
SPECIAL TOOLS 39. . . . . . . . . . . . . . . . . . . . . . .
TROUBLESHOOTING 40. . . . . . . . . . . . . . . . . . .
ON-VEHICLE SERVICE 46. . . . . . . . . . . . . . . . .
Headlamp Aiming 46. . . . . . . . . . . . . . . . . . . . . . . .
Intensity Measurement 47. . . . . . . . . . . . . . . . . . . .
Bulb Replacement 47. . . . . . . . . . . . . . . . . . . . . . . .
HEADLAMP 48. . . . . . . . . . . . . . . . . . . . . . . . . . . .
FRONT COMBINATION LAMP* 51. . . . . .
SIDE TURN-SIGNAL LAMP* 52. . . . . . . .
REAR COMBINATION LAMP* 53. . . . . . .
REAR FOG LAMP 54. . . . . . . . . . . . . . . . . .
SPECIAL TOOL 54. . . . . . . . . . . . . . . . . . . . . . . .
REAR FOG LAMP 54. . . . . . . . . . . . . . . . . . . . . .
RHEOSTAT 56. . . . . . . . . . . . . . . . . . . . . . . .
SPECIAL TOOL 56. . . . . . . . . . . . . . . . . . . . . . . .
RHEOSTAT 56. . . . . . . . . . . . . . . . . . . . . . . . . . . . .
HAZARD WARNING LAMP SWITCH
57 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
SPECIAL TOOL 57. . . . . . . . . . . . . . . . . . . . . . . .
HAZARD WARNING LAMP SWITCH 57. . . . .
HORN 58. . . . . . . . . . . . . . . . . . . . . . . . . . . . .
CIGARETTE LIGHTER 59. . . . . . . . . . . . . .
CLOCK 60. . . . . . . . . . . . . . . . . . . . . . . . . . . .
SPECIAL TOOL 60. . . . . . . . . . . . . . . . . . . . . . . .
CLOCK 60. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
RADIO AND TAPE PLAYER 61. . . . . . . .
SPECIAL TOOL 61. . . . . . . . . . . . . . . . . . . . . . . .
TROUBLESHOOTING 61. . . . . . . . . . . . . . . . . . .
Quick-reference Troubleshooting Chart 61. . . . .
Chart 62. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Radio and Tape Player with
Anti-theft System 77. . . . . . . . . . . . . . . . . . . . . . . . .
RADIO AND TAPE PLAYER 80. . . . . . . . . . . . .
SPEAKER 81. . . . . . . . . . . . . . . . . . . . . . . . .
ANTENNA 82. . . . . . . . . . . . . . . . . . . . . . . . .
SPECIAL TOOL 82. . . . . . . . . . . . . . . . . . . . . . . .
ANTENNA 82. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
CONTINUED ON NEXT PAGE
Page 992 of 1310
12From previous page
Key reminder switch continuity check
OK NG
MUT-II Pulse Check
•
Key reminder switch input signal
OK:
MUT-II buzzer sounds once when removing
and inserting ignition key.NG
Repair
OK
Check the following connectors:
C-72, C-79, C-86, C-91
Replace the transmitter.OK NG
OK
Check trouble symptomsRepair
Check the trouble symptoms.NG
OK
Replace the ETACS-ECU.
Check the harness wire, and repair if necessary.
•
Between key reminder switch and ETACS-ECU
•
Between key reminder switch and earth
INSPECTION PROCEDURE 2
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.)Probable cause
If neither room lamp nor turn-signal lamp flash/illuminate, the
cause may be a malfunction of the ETACS-ECU or driver’s-side
door lock actuator.
If either room lamp or turn-signal lamp does not flash/illuminate,
the cause may be a malfunction of the room lamp circuit or turn-
signal lamp.•
Malfunction of ETACS-ECU
•
Malfunction of driver’s door lock actuator
•
Burnt turn-signal lamp bulb
•
Malfunction of connector or wiring harness
Carry out the troubleshooting for room lamp circuit.Does the room lamp go on/go off simultaneous
with opening/closing door?NO
Yes
Does the turn-signal lamp flash when the turn-
signal lamp switch is operated?NO
Carry out the troubleshooting for turn-signal lamp
circuit.
Yes
NG
Check the driver’s door lock actuator
OK NG
MUT-II Pulse Check
•
Drivers door lock actuator switch input signal
OK:
MUT-II buzzer sounds once when locking
or unlocking driver’s door.Replace
OKCheck the following connectors:
C-38, C-110, E-09
E-20
Replace the ETACS-ECUOK NG
Check trouble symptoms.Repair
NG
Check the harness wire, and repair if necessary.
•
Between ETACS-ECU and driver’s door lock actua-
tor
•
Between driver’s door lock actuator and earth
42-4BODY – Keyless Entry System