C2172 Code: Meaning, Causes, and Symptoms | OBD2 Codes

C2172 – Transmitter ID Not Registered In 2nd Mode

 

C2172 Possible Symptoms

 

Tire Pressure Monitor System (TPMS) Warning Light ON,Anti-Lock Brake System (ABS) Warning Light ON

 

C2172 Possible Causes

 

Faulty Tire Pressure Warning ECU,Tire Pressure Warning ECU harness is open or shorted,Tire Pressure Warning ECU circuit poor electrical connection

 

C2172 Description

 

The IDs of each tire pressure warning valve and transmitter are registered to the Tire Pressure Warning ECU. When the ECU detects that an ID is not one of the registered IDs, or cannot receive an ID signal, a Diagnostic Trouble Code (DTC) is output.