Wheel Rotation and Sensor Training Techniques

Training known good sensors from another vehicle cannot differentiate between a faulted module and Radio Frequency Interference (RFI), as some noise source could be preventing the module from receiving the tire pressure status from the original sensors as well as the known good sensors. This technique can be used to differentiate between a sensor and a module concern. If the module in the suspect vehicle cannot train any of the sensors on the vehicle and, likewise, cannot train known good sensors from another vehicle, then the concern is with the module or Radio Frequency Interference (RFI) and not with the original sensors. The original sensors should not be replaced. If a sensor in a certain location has caused several events, yet the sensor trains and seems to operate normally, moving that particular wheel to a different location on the vehicle is a good way to isolate the concern to a certain sensor/wheel location. Rotate the wheels and road test the vehicle. This can be done in an attempt to replicate the concern and help determine if the concern followed the sensor or remained in the original sensor location. If the vehicle has been stationary for more than 15 minutes, the sensors go into a sleep mode to conserve battery power and they will need to be woken up so they transmit the latest tire pressure information to the BCM. Refer to: Tire Pressure Monitoring System (TPMS) Sensor Activation .