Tech Tips
Use the table below to help determine the cause of problem symptoms. If multiple suspected areas are listed, the potential causes of the symptoms are listed in order of probability in the "Suspected Area" column of the table. Check each symptom by checking the suspected areas in the order they are listed. Replace parts as necessary.
| Symptom | Suspected Area | Link |
|---|---|---|
| Horn does not sound | HORN fuse*11 | - |
| HORN relay*11 | ||
| No. 1 Integration relay*10 | ||
| High pitched horn assembly*1 | ||
| Low pitched horn assembly*2 | ||
| Spiral cable sub-assembly*3 | ||
| Spiral cable sub-assembly*4 | ||
| Steering pad switch assembly*5 | ||
| Horn button wire sub-assembly*6 | - | |
| Horn button assembly | ||
| Instrument panel junction block assembly*7 | ||
| Instrument panel junction block assembly*8 | ||
| Wire harness | - | |
| Horn sounds all the time | HORN relay*11 | |
| No. 1 Integration relay*10 | ||
| Spiral cable sub-assembly*3 | ||
| Spiral cable sub-assembly*4 | ||
| Steering pad switch assembly*5 | ||
| Horn button wire sub-assembly*6 | - | |
| Horn button assembly | ||
| Instrument panel junction block assembly*7 | ||
| Instrument panel junction block assembly*8 | ||
| Main body ECU (Multiplex network body ECU)*8, *9, *11 | ||
| Wire harness | - |
*1: for Hatchback, Wagon
*2: for Sedan
*3: w/ VSC
*4: w/o VSC
*5: w/ Steering Pad Switch Assembly
*6: w/o Steering Pad Switch Assembly
*7: for LHD
*8: for RHD
*9: w/ Theft Deterrent System
*10: for 1WW
*11: except 1WW