ECM RESET PROCEDURE/CLEARING CODES
Note. Some models have an anti-theft code built into the radio circuit. Clearing codes cancels clock and radio settings; make note of settings before beginning reset procedure. After ECM reset, the radio will not function until code is entered.
To reset Engine Control Module (ECM) (clear codes), use PGM-FI tester or scan tool following manufacturer's instructions. Codes can also be cleared by turning ignition off. Remove BACK UP (7.5-amp) fuse from underhood fuse/relay block. Leave fuse out for 10 seconds to reset ECM. Disconnect PGM-FI tester or scan tool from DLC.