General Information

Component Location





General Description

The LFI (Low Frequency Initiator) is located at each vehicle wheel house (FL, FR, RL, RR). High Line systems are fitted with LFI units. An LFI unit mounted in each wheel well to enable the receiver unit to determine the vehicle position of each sensor for which it has a stored ID code. Using a digital bi-directional serial control line to each LFI, the receiver can activate an LFI to send out an LF message and trigger the sensor near its location to respond with an RF transmission. By activating LFI units one at a time, the receiver can automatically locate the vehicle position of each sensor. For fault detection, the LFI will report back its "operating properly" status to the receiver via the control line.
The LF communication prolong battery life (through state changes) and determine sensor location (through one-to-one handshaking between LFI and transmitter).

DTC Description

This DTC indicates that there is a short circuit to GND of the initiator supply that runs from the receiver to initiator. The most likely failure is harness / initiator / connector / receiver short circuit.

DTC Detecting Condition





Schematic Diagram