Normal Operation
The Instrument Cluster (IC) receives the safety belt and Belt-Minder® requests from the Restraints Control Module (RCM) over the High Speed Controller Area Network (HS-CAN). The safety belt warning chime sounds for approximately 6 seconds when the driver safety belt is not fastened and the ignition lock cylinder is turned from the OFF/LOCK or ACC position to the ON or START position.
The Belt-Minder® feature supplements the safety belt warning function and is enabled after the safety belt warning is complete. The Belt-Minder® simultaneously sounds the chime and illuminates the safety belt warning lamp in the IC once the vehicle speed has exceeded 4.8 km/h (3 mph), and remains active for 5 minutes from the time it is started.
There are 2 Belt-Minder® strategies that are used and implemented by the IC as commanded by the RCM . The 2 strategies are designed to provide an increased intensity level of the chime. Belt-Minder® A provides 6 one-second sequences of 0.5-second on/0.5-second off for the first minute of the Belt-Minder® warning cycle. Belt-Minder® B provides 6 one-second sequences of 0.2-second on/0.2-second off then 0.3-second on/0.3-second off for the remainder of the Belt-Minder® warning cycle.
This pinpoint test is intended to diagnose the following:
- Belt-Minder® deactivated
- Safety belt warning indication concern
- IC