Symptom Chart(s)
WARNING: This page is about a different car, the 2018 Ford Focus. However, it is still accessible from the selected car via links, so may be relevant.
Symptom Chart: Horn
Diagnostics in this article assume a certain skill level and knowledge of Ford-specific diagnostic practices. REFER to: Diagnostic Methods .
Symptom Chart
| Condition | Possible Sources | Actions |
|---|---|---|
| The horn is inoperative | Refer to Pinpoint Test | GO to Pinpoint Test A |
| The horn is always on | Refer to Pinpoint Test | GO to Pinpoint Test B |
| A single horn is inoperative | LH Horn (if equipped) RH Horn Wiring |
If the LH horn is inoperative (if equipped), CHECK circuits CRH02 (BU-WH) and RRH02 (GN-WH) for an open. Refer to Horn/Cigar Lighter
for schematic and connector information. If the circuits are OK, INSTALL a new LH horn (if equipped). REFER to: Horn . If the RH horn is inoperative, CHECK circuits CRH02 (BU-WH) and RRH02 (GN-WH) for an open. Refer to Horn/Cigar Lighter for schematic and connector information. If the circuits are OK, INSTALL a new RH horn. REFER to: Horn . |