User's Manual

TPM-100 (MTPM-100) specification Rev. 6 25

May 2004

Functionality:

Normal Operation Mode:

As soon as the ignition is switched on, the system will perform a self-test. This self-test should take no

longer than 108 seconds to be completed. The self-test period is defined as the period from the point that

the ignition is switched on to the point that the Electronic Module receiver has received the latest Tire

Conditions from each wheel taught to the system. If the system is permanently fed the signals are

received when the ignition is switched off. As a result, the self-test period takes 2 seconds and then the

latest Tire Conditions are displayed. During the first 2 seconds of the self-test period, the LED will turn

on RED for 2 second and the buzzer will sound for 0.3 seconds. After this 2-second period, one of 3 sets

of conditions will be displayed:-

i) If all Tire Conditions were OK when the ignition was last switched off, then the LED will

start to flash Green at a rate of 0.5 Seconds ON/0.5 Seconds OFF. If all Tire Conditions are

still OK at the end of the self-test period, then the LED will turn Constant Green.

ii) If all Tire Conditions were OK when the ignition was last switched off, then the LED will

start to flash Green at a rate of 0.5 seconds ON/0.5 Seconds OFF. If Tire Condition

information is received from a sensor indicting a Warning or Alert conditions (either

Temperature or Pressure), then the LED will immediately indicate the detected Condition.

Note : This should happen as soon as the information is receiver – do not wait until the end

of the self-test period.

iii) If Tire Conditions were not OK when the ignition was last switched off, then the LED

should immediately display the relevant Tire Condition Warning or Alert. This Tire

Conditions will continue to be displayed throughout the self-test period. At the end of the

self-test period, the display will either change to indicate all tire conditions are now OK

(LED on Green) if the problem has been rectified or to show the Tire Condition Warning

or Alert if the conditions still exists.

If the Tire Conditions of all tires are OK, the LED will light up Green and will turn-off after one minute

(To avoid distraction/ irritation of the driver).

When the button is pressed (LED is OFF), the LED will show the latest condition (To give the driver the

feeling the system is still working).

If no signal has been received from one sensor for more then 10 minutes (with the ignition on), the LED

will change colour continuously indicating that the receiver is searching for a signal. (0.25 seconds green

/ 0.25 seconds orange / 0.25 seconds red / 0.25 seconds orange / etc.)