B1193

B1193

Horn, open-circuit

Fault symptom

The horn does not work The LED flashes during the delay period

Conditions

Open-circuit registers diagnostic trouble code

Action

Check fuse 23

Check to see if the horn works

Connect the ISAT scan tool.

Select "ACTIVATE".

Select "HORN".

Select "ON".

If the horn functions correctly, proceed to point 6.

If not, proceed to point 3.

Check the voltage supply to the horn

Disconnect the horn.

Connect the test lamp in the two 1 pin horn connectors.

Repeat scan tool command as point 2.

When "ON" is selected, the test lamp should light.

If the test lamp lights, change the horn.

If not, proceed to point 4.

Check the horn +30 supply

Connect the test lamp between the 1 pin horn connector with the red lead and a safe grounding point.

The test lamp should light.

If the test lamp does not light, conduct a continuity test and take action on the cable assembly between the connector, pin 1 and fuse 23.

If the test lamp lights, proceed to point 5.

Check the horn grounding

Control module, pin 11 grounds the horn when it is activated.

Conduct a continuity test on the cable assembly between the 1 pin horn connector, with the black lead and the control module, pin 11.

The resistance should be < 1 Ohm.

If the resistance is incorrect, take action on the fault in the cable assembly.

If the resistance is correct, proceed to point 6.

Check if a diagnostic trouble code is registered

Erase the diagnostic trouble code, test drive the car and check to see if the diagnostic trouble code is re-registered.

If the diagnostic trouble code is registered, proceed to .

If the diagnostic trouble code is not registered, the action taken is correct or the fault is of intermittent type.