37MGRA EC 53/ EC 52/ EC 54/ EC 56/ EC 57/ EC 50/ EC 5A/ EC 5B/ EC 5E (Open Circuit or Short Circuit of Temperature Sensor Diagnosis and Solution)

Diagnostic codes covered

EC 53, EC 52, EC 54, EC 56, EC 57, EC 50, EC 5A, EC 5B, EC 5E

• EC 53 – ODU Ambient Temperature Sensor (T4) Error
• EC 52 – ODU Coil Temperature Sensor (T3) Error
• EC 54 – Compressor Discharge Temperature Sensor (TP) Error
• EC 56 – IDU Coil Temperature Sensor (T2B) Error

Description: If the sampling voltage is lower than 0.06V or higher than 4.94V, the LED displays the failure. Recommended parts to prepare: Connection wires, Sensors, PCB