AC–32 AIR CONDITIONING SYSTEM – TROUBLESHOOTING Blinking Light FOOT Evaporator Temperature Sensor Circuit CIRCUIT DESCRIPTION This sensor detects the temperature inside the cooling unit and sends the appropriate signals to the A/C amplifier. Diagnostic Sensor Check Detecting Condition | Trouble Area Open or short in evaporator temperature sensor circuit. | • Evaporator temperature sensor • Harness or connector between evaporator temperature sensor and A/C amplifier • A/C amplifier WIRING DIAGRAM A/C Amplifier 5 V L-Y 3 2 IG1 L-Y 7 A13 TE Evaporator Temp. Sensor 1 V-W 4 IG1 V-W 9 A13 SG N08815