NANO

ENGINE 273 MPFI 253 ENGINE ECU – ON VEHICLE REMOVAL, INSPECTION & REFITMENT PROCEDURE Removal Procedure : • Remove negative terminal of battery Precaution : • Ensure that the removed terminal is away from the battery negative post. • Pull out the lock of the ECU coupler. • Remove the earthing terminal of ECU. • Remove the mounting screws of the ECU . • Take out the ECU. Precaution : • ECU needs to be handled with care and kept in a secure place. Inspection : • Check if all the pin holders are in proper position and shape. Fitment Procedure • Place ECU in proper position. • Tighten the mounting screws of the ECU. • Connect the Earth connection of the ECU. • Connect the coupler of the ECU. Precaution : 1. Ensure proper alignment of the ECU and harness coupler. 2. Pull the coupler to check proper fitment. • Connect the battery negative terminal. Precaution : Please ensure proper tightening of positive and negative terminals .