Remote Keyless Entry Horn Chirp Inoperative
NOTE:
After making any repairs, perform BODY CONTROL MODULES SYSTEM VERIFICATION TEST
under VERIFICATION TESTS.
- Press horn pad on steering wheel. If horn is operating properly, go to next step. If horn does not operate properly, repair horn as necessary. See HORN SYSTEM under TROUBLE SHOOTING in appropriate STEERING COLUMN SWITCHES article.
- Turn ignition off. Connect scan tool to Data Link Connector (DLC). Turn ignition on. Using scan tool, read HORN CHIRP status. If scan tool displays ENABLED, go to next step. If scan tool does not display ENABLED, enable horn chirp using scan tool.
- Turn ignition off. Remove Body Control Module (BCM) from back of junction block. Momentarily connect a fused jumper wire between ground and terminal No. 18 at BCM connector on back of junction block. See Figure . If horn sounds, replace BCM. If horn does not sound, replace junction block.