C1339 Code: Meaning, Causes, and Symptoms | OBD2 Codes

C1339 – Right Rear Low Frequency Initiator Fail Pulse Detected

 

C1339 Possible Symptoms

 

Anti-Lock Brake System (ABS) Warning Light ON,Engine Light ON (or Service Engine Soon Warning Light)

 

C1339 Possible Causes

 

Faulty Right Rear communication Initiator (LFI) Module,Right Rear Low Frequency Initiator (LFI) Module harness is open or shorted,Right Rear Low Frequency Initiator (LFI) Module circuit poor electrical connection

 

C1339 Description

 

The Low-Frequency Initiator (LFI) is located at each vehicle wheel house. An LFI unit is mounted in each wheel well of a vehicle to enable the TPMS Receiver Unit to determine the vehicle position of each WE for which it has a stored ID code. Using a LIN communication line to each LFI, the Receiver can activate an LFI to send out an LF message and trigger the WE sensor near its location to respond with an RF transmission. By activating the LFI units one at a time, the Receiver can automatically locate the vehicle position of each WE. For fault detection, the LFI will report back it’s operating properly status to the Receiver via the LIN communication line.