Mitsubishi MOTORS Space Runner 1999 Workshop Manual Supplement page 402

INSPECTION PROCEDURE 3
The engine warning lamp does not illuminate right after
the ignition switch is turned to the ON position.
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.
MUT-II Data list
16 engine-ECU power supply voltage (Refer to P.13A-75.)
OK
Measure at the engine-ECU connector B-29.
Disconnect the connector, and measure at the harness side.
Earth the terminal No. 36.
OK: The engine warning lamp illuminates.
NG
NG
Check a burnt-out bulb.
OK
Measure at the combination meter connector B-01.
Disconnect the connector, and measure at the harness side.
Voltage between 49 and earth (Ignition switch: ON)
OK: System voltage
OK
Check the following connectors:
B-01, B-02, B-19, B-29
OK
Check trouble symptom.
INSPECTION PROCEDURE 4
The engine warning lamp remains illuminating and never
goes out.
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.
MUT-II Self-Diag code
Are diagnosis codes displayed?
Measure at the combination meter connector B-02.
Disconnect the connector, and measure at the harness side.
Disconnect the engine-ECU connector
Continuity between 4 and earth
OK: No continuity
Replace the engine-ECU.
GDI –
Replace
No
OK
Troubleshooting
Probable cause
Burnt-out bulb
Defective warning lamp circuit
Malfunction of the engine-ECU
NG
Check the engine-ECU power supply and earth circuit system.
(Refer to P.13A-65, INSPECTION PROCEDURE 25.)
OK
Check the following
connector: B-29
OK
Check trouble symptom.
NG
Replace the engine-ECU.
NG
Check the engine warning lamp power supply circuit, and repair
if necessary.
NG
Repair
NG
Check the harness wire between combination meter and engine-
ECU, and repair if necessary.
Probable cause
Short-circuit between the engine warning lamp and
engine-ECU
Malfunction of the engine-ECU
Yes
Refer to P.13A-13, INSPECTION CHART FOR DIAGNOSIS
CODES
NG
Check the harness wire between combination meter and engine-
ECU connector, and repair if necessary.
13A-43
NG
Repair