C2194 Code: Meaning, Causes, and Symptoms | OBD2 Codes

C2194 – Engine Speed Signal Error


C2194 Possible Symptoms


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


C2194 Possible Causes


Faulty Engine Control Module (ECM),Engine Control Module (ECM) harness is open or shorted,Engine Control Module (ECM) circuit poor electrical connection,Faulty Tire Pressure Warning ECU


C2194 Description


The Tire Pressure Warning ECU receives an engine speed signal from the Engine Control Module (ECM). This Diagnostic Trouble Code (DTC) is stored upon entering test mode, and cleared when an engine speed signal of 1000 rpm is detected for 3 seconds or more. This DTC is output only in test mode.