HV ELECTRICAL SYSTEM_MR & LR 68 Fitment Follow reverse procedure for assembly. 1. After connecting the LV battery , Start the vehicle and after 5 minutes if the coolant level drops below the max level then top up the coolant till max level. NOTE After filling the coolant, the coolant pump can be run through the service tool for the deaeration of coolant circuit. Or the vehicle can be cranked to run the pump, because in vehicle cranked state the pump operation starts in default speed which will in turn deaerate the circuit. 2. Connect the diagnostic tool to OBD connector. 3. Turn the IGN ON. 4. Read the DTCs and clear all the DTCs from EDrive ECU with the help of diagnostic tool. Unlock security to E-Drive ECU. Please follow the procedure available in service tool to Unlock the security access. CAUTION This is an essential step without unlocking the security access further steps will not be executed. 5. Perform the following diagnostics activities:- Read HW, SW part numbers and it’s version numbers of E-drive ECU and compare against server a) Vehicle Manufacturer Spare Part Number (F187) b) ECU Application Software Number (7241) c) Application Software Identification (F181) d) ECU Calibration Software Number (7242) G. REDUCER OIL LEVEL CHECKING / DRAIN / FILLING DO & DONTS I. Oil level check 1. Before checking the oil level, stop the motor and lift the vehicle horizontally. 2. With the vehicle raised check for oil leakage if there is oil leakage, it should be repaired. 3. Remove the oil level plug, check whether the oil reaches the bottom of the oil level plug, and check whether the oil is polluted. Relationship between oil level and oil level plug 4. If the oil level is in is insufficient, replenish the lubricating oil to the oil level line shown in the figure. if the lubricating oil is polluted, replace the lubricating oil.
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