Pinpoint Test AO : The Key-In-Ignition Warning Chime Is Inoperative: Notes
Diagnostic Overview
Diagnostics in this article assume a certain skill level and knowledge of Ford-specific diagnostic practices. Refer to Diagnostic Methods in Service Information for information about these practices.
Refer to Instrument Cluster , Instrument Cluster for schematic and connector information.
Normal Operation and Fault Conditions
REFER to Key-In-Ignition Warning Chime in Warning Chimes .
Possible Sources
- Wiring, terminals or connectors
- Interior lighting concern
- BCM
- IPC