Clearing Trouble Codes
NOTE:
On models not utilizing a 12-terminal DLC or if no wire is present in terminal "B", codes are cleared using a scan tester.
Turn ignition switch to ON position, and ground diagnostic test terminal "B" at DLC. See Figure . Turn ignition switch to OFF position, and remove control module fuse from fuse block for 10 seconds. Replace fuse. Remove diagnostic terminal ground lead. If fuse cannot be located, pigtail at battery can be disconnected. When power to ECM is remove, degraded driveability may be exhibited until control module "relearns" optimum operational parameters.