ALTROZ SERVICE MANUAL

HVAC (ETC) 13 E. BLINK CODES DISPLAY(FAULT CODE): Blink code shall be displayed using following se- quence for particular fault. 1. LED is OFF for 2.5 sec 2. The blink code will be displayed using sequence of 1sec ON and 1 sec OFF. 3. LED is OFF for 2.5 sec 4. The blink code will be displayed using sequence of 1sec ON and 1 sec OFF. 5. LED is OFF for 2.5 sec 6. The blink code will be displayed using sequence of 1sec ON and 1 sec OFF. 7. LED is OFF for 5 sec If more than 1 fault is active, the respective blink codes shall be displayed at same time. After 20 Auto Calibration Trial. We have provision to calibrate manually with following steps Diagnostic Code Fault oc- cur in Function LED display representation Blink_code_AD AD Motor Foot symbol LED Blink_code_Temp Temp Mo- tor Left most (max cool )blue LED Blink_code_Recirc Recirc Motor Recirc LED Blink_code _Blower Blower motor Blower level 1 LED Blink_code_AC AC re- quest AC LED Blink_code_Key Any Key clamp Rear defrost LED Blink code in diagnostics mode Blink code timing diagram F. CLEAR FAULT MEMORY: 1. The Recirc button is used to clear the current fault memory while ETC is in diagnostic mode,During LED is in 5sec OFF period. 2. User shall clear the fault memory by pressing Re- circ button more than 5 sec at the start of 5 Sec of LED OFF period. 3. FACE LED shall blink twice when all current memory faults got clear. 4. All passive fault get clear and if any active fault is there it will displayed in terms of RCIRC LED blinking in NEXT IGN cycle. For list of Fault Refer Section Fault List. NOTE : If fault will not clear then in diagnostics mode user will get false indication even though the Fault is re- moved. Fault will remain there till we won’t clear it. Fault oc- curred in Function Fault Detection LED display representation AD Motor Short to Batt Short to GND Actuator Stuck Missing Calibra- tion Foot symbol LED Temp Motor Short to Batt or Open Short to GND Actuator Stuck Missing Calibra- tion Left most (max cool )blue LED Recirc Mo- tor Short to Batt Short to GND Actuator Stuck Missing Calibra- tion Foot symbol LED Blower mo- tor Short To Batt Short to Gnd or Open Blower level 1 LED Blower Po- sition Info Short To Batt Short to Gnd or Open Blower level 1 LED AC request Short To Bat Short To GND AC LED Any Key Clamp Key Clamp Rear defrost LED G. EXIT FROM DIAGNOSTIC MODE: ETC will exit the diagnostic mode after IGN cycle (IGN OFF and then IGN ON).