Operation CHARM: Car repair manuals for everyone.

Shock Sensor Adjustment

1. Turn the ignition switch to the LOCK position.
2. Remove the left instrument panel sound insulator.
3. Remove the BCM PRGRM fuse.
4. Turn the ignition switch to the ACC position. The BCM flashes the fasten belts indicator and sounds the chime four times. This identifies that the BCM type 4 is installed on the vehicle.
5. Within 1 second, turn the ignition switch from the ACC position, to the LOCK position, then back to the ACC position.
6. Rotate the shock sensor adjustment knob counterclockwise in order to decrease the sensitivity level. Rotate the shook sensor adjustment knob clockwise in order to increase the sensitivity level.
7. Rotate the shock sensor adjustment knob in 30 degree increments, then simulate a small vehicle impact. Choose an area of the vehicle such as the bumpers in order to avoid body damage.
^ Depending on the sensitivity level of the shock sensor and the magnitude of the impact, the horn sounds for 25 ms upon detecting a vehicle impact.
^ If the sensitivity level is high, the horn sounds for 100 ms upon detecting a vehicle impact.
8. Repeat steps 6 and 7 until you reach the desired sensitivity level.
9. Turn the ignition switch to the LOCK position.
10. Reinstall the BCM PRGRM fuse.
11. Install the left instrument panel sound insulator.