Mitsubishi MOTORS Space Runner 1999 Workshop Manual Supplement page 433

13A-74
INSPECTION PROCEDURE 36
Small lamp switch
The engine-ECU determines whether the small lamp switch is on or off.
According to that information, the engine-ECU controls
alternator output current when the vehicle is started.
Measure at the engine-ECU connector B-30.
Disconnect the connector, and measure at the harness
side.
Voltage between 52 and earth
(Lighting switch: ON)
OK: System voltage
Check the following connector: B-30
Check the trouble symptoms.
Replace the engine-ECU.
GDI –
OK
OK
NG
Troubleshooting
Probable cause
Improper connector contact, open circuit or
short-circuited harness wire in the taillamp circuit
Malfunction of the engine-ECU
NG
Check the taillamp circuit. (Refer to ELECTRICAL WIRING.)
NG
Repair