Chevrolet
Battery voltage is applied at all times to the horn relay through circuit
1140 at the following terminals:
Ground is applied to the horn relay coil at terminal F8 through
circuit 28 when one of the following actions occur:
| • | A horn switch is pressed |
| • | The body control module (BCM) initiates a tamper/alarm cycle |
The horn relay contacts close. Battery voltage is applied to the horns
through circuit 29. Ground is applied to the horns through circuit 250 and
G105. The horns continue to sound until one of the following actions occur:
| • | The horn switch is released. |
| • | The tamper/alarm cycle ends. |
Pontiac
Battery voltage is applied at all times to the horn relay through circuit
1140 at the following terminals:
A ground path is provided to the horn relay coil at terminal F8
through circuit 28 under the following conditions:
| • | When the inflator module is pressed against a spring loaded ground
plate in the steering wheel. |
| • | When the BCM initiates a tamper/alarm cycle |
The horn relay contacts close with ground applied. Battery
voltage is applied to the horns through circuit 29. Ground is applied to the
horns through circuit 250 and g105. The horns continue to sound until one
of the following actions occur:
| • | The inflator module is released. |
| • | The tamper/alarm cycle ends. |
