Operation CHARM: Car repair manuals for everyone.

Troubleshooting Hints

1. CHECK the condition of the HORN Fuse. If the fuse is open, LOCATE and REPAIR cause of the overload and REPLACE the fuse.
2. If a single horn is not functioning, REPLACE the Horn assembly.
3. CHECK that Ground G103 is clean and tight.
^ CHECK for a broken or partially broken wire inside the insulation which could cause system malfunction but prove GOOD in a Continuity/Voltage check with a system disconnected. These Circuits may be intermittent or resistive when loaded and should be checked by monitoring for a Voltage drop with the system operational (under load).
^ CHECK for proper installation of aftermarket electronic equipment which may affect the integrity of other systems (Refer Troubleshooting Procedures). Diagnostic Aids