System Tests: Communications: Notes

CAUTION: Always turn ignition off before disconnecting any control module connectors. Failure to do so could result in damage to control module. When battery is disconnected, vehicle computer 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.

NOTE: For communications system wiring diagram, see appropriate wiring diagram in DATA LINK CONNECTORS article in WIRING DIAGRAMS.