Servicing Electrical System

WARNING: Battery posts, terminals and related accessories contain lead and lead compounds. WASH HANDS AFTER HANDLING.

Note the following before proceeding with working on the electrical system.
Never perform unauthorized modifications to any electrical device or wiring. Such modifications might lead to a vehicle malfunction, over-capacity or short-circuit that could result in a fire in the vehicle.
CAUTION:
- Before connecting or disconnecting the negative battery cable, be sure to turn the ignition switch to the "LOCK" (OFF) position and turn off the lights. (If this is not done, there is the possibility of semiconductor parts being damaged.)
- After completion of the work (and the negative battery terminals is connected), warm up the engine and allow it to idle for approximately 10 minutes under the conditions described below in order to stabilize engine control conditions, and then check to be sure that the idle is satisfactory.
  - Engine coolant temperature: 85 - 95° C (185 - 203° F)
  - Lights and all accessories: OFF
  - Transaxle: "N" position
  - Steering wheel: straight-forward position
When servicing the electrical system, disconnect the negative cable terminal from the battery.

Fig 1: Disconnecting Negative Cable Terminal From Battery
Courtesy of MITSUBISHI MOTOR SALES OF AMERICA.