CEM-8FA3

Condition
If the control unit registers that the signal on the relay coil 2/17 is not present/too low when the signal horn is activated, diagnostic trouble code CEM-8FA3 is set.

Condition
None.

Possible source
- Oxidation of relay socket contacts.
- Relay is loose or missing.
- Faulty relay, open circuit/short circuit to ground in relay coil.

Condition
- Horn does not work.