Body Control Module (BCM)
WARNING: This page is about a different car, the 2007 Nissan Pathfinder. However, it is still accessible from the selected car via links, so may be relevant.
The BCM is shown with the lower instrument panel LH removed. The BCM reads the air pressure signal received by the remote keyless entry receiver, and controls the low tire pressure warning lamp as shown below. It also has a self-diagnosis function to detect a system malfunction.
LOW TIRE PRESSURE WARNING LAMP REFERENCE
| Condition | Low tire pressure warning lamp |
|---|---|
| System normal | On for 1 second after ignition ON |
| Tire less than 193 kPa (2.0 kg/cm2
, 28 psi) [Flat tire] |
ON |
| Low tire pressure warning system malfunction | After key ON, flashes once per second for 1 minute, then stays ON |