Engine Controls - Tests W/Codes - Base Module: Identification

WARNING: Vehicles are equipped with air bag supplemental restraint system. Before attempting ANY repairs involving steering column, instrument panel or related components, see SERVICE PRECAUTIONS and DISABLING & ACTIVATING AIR BAG SYSTEM in appropriate AIR BAG RESTRAINT SYSTEMS article.

CAUTION: When battery is disconnected, vehicle computer and memory systems may lose memory data. Driveability problems may exist until computer systems have completed a relearn cycle. See COMPUTER RELEARN PROCEDURES article in GENERAL INFORMATION before disconnecting battery.

CAUTION: Vehicles equipped with coded radios are susceptible to damage when battery is disconnected. Ensure ignition switch is in OFF position and radio is turned off before disconnecting battery. Have radio code available when disconnecting battery or removing radio.

NOTE: For Mercedes-Benz model, chassis and engine identification, see MERCEDES-BENZ MODEL IDENTIFICATION .