#Urea level not showing #Ashok layland #Fault code #U0113 ,P01FF #Albonor

#Ashok layland #Urea level not showing #fault code #U0113 p01FF Ashok Leyland BS6 gadi mein Urea level na dikhana aur ye codes aana aksar *Communication error* ya *DCU (Dosing Control Unit)* ki samasya ko darshate hain. Inka vistaar se vivran niche diya gaya hai: *1. Fault Code U0113* *Description:* Lost Communication with Emissions Critical Control Unit. *Hindi:* Iska matlab hai ki gadi ke main ECU aur Emissions Control Unit (jo urea system ko manage karta hai) ke beech sampark (communication) toot gaya hai. *Mukhya Kaaran:* CAN High ya CAN Low wires mein short circuit ya open circuit hona. Urea tank ke paas lage connector mein pani ya mitti ghusna (Corrosion). DCU/ACU ko power supply (Fuse) na milna. *2. Fault Code P01FF* *Description:* Reductant Tank Level Sensor "A" Circuit Range/Performance. *Hindi:* Ye code urea tank ke andar lage level sensor se sambandhit hai. Jab sensor sahi signal nahi bhejta ya data illogical hota hai, tab level meter "zero" ya "blank" dikhata hai. *Mukhya Kaaran:* Urea tank ke andar ka sensor kharab hona. Urea ki quality kharab hona (Crystallization). Wiring harness mein fault hona. *Troubleshooting Steps (Kya Check Karein):* 1. *Fuse Check Karein:* Sabse pehle dashboard ke fuse box mein 'SCR' ya 'Aftertreatment' ke fuse check karein. Agar fuse uda hai, toh communication nahi hoga. 2. *Connector Inspection:* Urea tank ke upar jo bada multi-pin connector hota hai, use nikaal kar saaf karein. Dekhein ki koi pin mudi hui ya gali hui toh nahi hai. 3. *Wiring Harness:* Check karein ki sensor se nikalne wali wires kahin se chhui (rubbing) ya kati toh nahi hain, khaas karke CAN wires. 4. *Urea Quality:* Agar urea tank mein crystals jam gaye hain, toh sensor float atak sakta hai. Tank ko hila kar dekhein ya urea ki quality check karein. 5. *Voltage Check:* Multimeter se check karein ki DCU connector par proper 24V supply aur Ground mil raha hai ya nahi. *Note:* Agar wiring sahi hai aur codes delete nahi ho rahe, toh diagnostic tool (i-Alert ya Leykart) se sensor ka live data check karna hoga ki DCU sensor ko read kar pa raha hai ya nahi.