C1623 – Brake Controlled System Malfunction

C1623 Possible Symptoms

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

C1623 Possible Causes

Faulty All Wheel Control (AWC) ECU,All Wheel Control (AWC) ECU harness is open or shorted,All Wheel Control (AWC) ECU circuit poor electrical connection

C1623 Description

The All Wheel Control (AWC) ECU controls brakes for Active Center Differential (ACD) Control. The code is set when the AYC brake control operates for a prolonged period.