Sigma Sam

The cause is likely to be one of 2 things, either: i) A fauly switch or bonnet switch out of adjustment or ii) The Ultrasonic settings being too sensitive Provided the system hasn't been triggered since the last "false" alarm then the easiest way to do this is to enter the following sequence into the keypad and then watch the status LED located to the left of the clock on the 02 model - count the LED flashes to confirm the circuit that caused the last trigger: - Arm and then Disarm the system using a working Radio Key. - Within 30 seconds of disarming, type into the keypad- *17856*38# - The alarm system's statusdash board LED will flash a number of times corresponding to the last triggered circuit 1= Ignition Detection 2= Door Switch 4= Boot Switch 8= Bonnet Switch 16= Ultrasonics When using the keypad always observe the following points: - The PIN number or programming sequence should not be entered too quickly or too slowly - when a digit has been pressed the small LED built into the keypad will illuminate briefly as confirmation and only then should the next digit be entered. - If an incorrect digit is pressed or the delay between entering digits exceeds10 seconds, then the LED above the keypad will flash rapidly and the PIN attempt should be abborted and started again after 30 seconds. - Due to the small size of the keypad some users may find a rubber tipped pencil easier to use. DO NOT use the sharp tip of a ball point pen etc, or press excessively ###### the keypad as this will only damage the membrane and cause a digit to remain pressed, causing a continual incorrect PIN. - The keypad allows only THREE PIN attempts (or an unrecognised sequence of 12 characters) and then will "Lock Up" if an incorrect number is entered a third time. This is a security feature to prevent random PIN attempts disarming the system. If this indicates that the bonnet switch is the cause, then the bonnet switch bracket should be bent upward. To test the adjustment, without releasing the bonnet try to lift the bonnet near the switch - when adjusted correctly attempting to lift a latched bonnet should not cause the siren to sound. If the ultrasonic sensors are shown to be the cause, then these can be adjusted. ideally these should be set to the standard settings using the keypad as follows: Adjusting the Ultrasonic Sensitivity Threshold: - Arm then disarm the system - Enter *17856*20*55# (in the above 55 is the Sensitivity Threshold Value) Adjusting the Disturbance Count: - Arm then disarm the system - Enter *17856*21*10# (in the above 10 is the Disturbance Count Value) Testing for the Correct Ultrasonic Settings: 1. Close all doors, tailgate/boot, bonnet, sunroof & windows. Standing close to the vehicle, in a position where the LED can still be seen, press the vehicle’s Remote Control to Arm the system in the normal way and observe the LED: • Initially, during the Settle Time (15 seconds at default), it will display short, dim flashes. • During the Ultrasonic Threshold Time (15 seconds at default), it will display long, bright, flashes. Ensure no movement is detected in this period, if it is, this will be indicated by the LED illuminating constantly for 1 second during its flash sequence • When fully armed the LED will dim slightly and display a short flash every 1 second 2. Now, with the security system fully armed, strike the centre of the vehicle’s door glass once firmly with the side of your hand and observe the LED. When striking the glass the status LED should illuminate constantly for 1 second, but the alarm should not trigger. Working around the vehicle, repeat this process on all the vehicle’s glass. Ideally, striking all the vehicles large glazed areas should illuminate the LED constantly for 1 second, however, due to variations in the fixing and thickness of the glass adjustments should only be based on the findings from the front side windows: • If the system triggers with one firm strike of the glass, the value of the Ultrasonic Sensitivity Threshold is too low, and the system could be prone to false alarms. The Ultrasonic Sensitivity Threshold should be increased from its current setting. Try increasing the value in increments of 5 from the original setting of 55 and repeat the test. • If, despite a firm strike on the front side glass, the LED does not illuminate constantly for 1 second, the Ultrasonic Sensitivity Threshold is too high and the Ultrasonic Sensitivity Threshold Value should be reduced from its current setting. Try decreasing the setting in increments of 5 from the original setting of 55 and repeat the test. 3. Once the Ultrasonic Sensitivity Threshold has been correctly adjusted for the front side glass, repeat the test, but this time strike the glass firmly in quick succession 6 or 7 times. The LED will illuminate again with the first strike and on the 6th or 7th strike the alarm system should trigger. This indicates that the settings are correct. • If the system triggers after only 1 or 2 firm strikes of the glass, the value of the Disturbance Count is too low, and the system could be prone to false alarms. The Disturbance Count should be increased from its current setting. Try increasing the value in increments of 2 at first from the original setting of 10 repeat the test. • If, despite 6 or 7 firm strikes on the front side glass, the LED illuminates constantly, but the system does not trigger then the Disturbance Count is too high and the setting should be reduced from its current setting. Try decreasing the value in increments of 2 at first from the original setting of 10 and repeat the test. Hope that helps, SS