Mitsubishi 1992 3000GT, Service Manual

Page: 23 / 1308

GENERAL
Precautions before Service
9
mm (in.)
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 nega-
tive cable terminal from the battery.
Caution
1. Before connecting or disconnecting the negative
cable, be sure to turn off the ignition switch and
the lighting switch.
(If this is not done, there is the possibility of
semiconductor parts being damaged.)
2. After completion of the work steps [when the
battery’s negative terminal is connected], warm
up the engine and allow it to idle for approximately
ten minutes under the conditions described below,
in order to stabilize the engine control conditions,
and then check to be sure that the idling is
satisfactory.
Engine coolant temperature:
Lights, electric fans, accessories: OFF
Transaxle: Neutral position
(A/T models: “N” or “P”)
Steering wheel: neutral (center) position
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 any plastic parts and all opening parts (doors, luggage
compartment, etc.).
APPLYING RUST PREVENTIVES, UNDERCOAT,
ETC.
Heated oxygen sensors have their functional efficiency
decreased if they are smeared with oil or grease. When
applying rust preventives, undercoat, etc., be sure to protect
the heated oxygen sensor with a protective cover or the like.
TSB Revision