C2171 – Transmitter ID Not Registered In Main Mode

C2171 Possible Symptoms

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

C2171 Possible Causes

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

C2171 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.