HEXA

ELECTRICAL 183 16.Configure the BCM ECU (parameterization of BCM ECU) with following steps a. Turn IGN ON. b. Perform the parameterization as per vehicle variant with the help of diagnostic tool. c. Power Latch - Ignition->OFF->ON transition. (Make sure is key is taken out). d. Read and confirm configuration data from BCM against server. 17.Read the DTCs and clear all the DTCs from BCM ECU with the help of diagnostic tool. 18.Provide IGN off-on cycle. 19.Read the DTCs from BCM ECU with the help of diagnostic tool. If any DTC is present, follow the that DTC related troubleshooting procedure to rectify it. (DTC troubleshooting document to be referred). MAJOR PRECAUTIONS FOR REPLACEMENT 1. While replacing the BCMs, it is suggested not to touch the BCM pins with hand. 2. While tightening the screws, tightening torque must not exceed 3. BCM upper and lower covers shall not be removed while verifying/replacing the BCM. 4. All of the service tool instructions for BCM replacement shall be followed. 5. Any of the Base/Mid/Mid Gateway BCMs that has to be removed from vehicle shall be replaced with the same variant as that of removed BCM. Learn the RKE (remote key) as mentioned in step 14 of BCM replacement strategy LEARNING OF KEY WITH IMMOBILIZER PROCEDURE: Conditions for key learning are 1. At the time of cranking Battery voltage should not go below 10 Volts. 2. Diagnostic Software with latest version to be used. Procedure: 1. Connect the diagnostic software through Diagnostic Link Coupler (DLC). Switch on the ignition with Learned key. Then select “TATA_Antitheft_Immobilizer” option & click on “Locking, Key Routines”. 2. Cl ick “Transponder key learning ADD” opt ion. 3. Immobilizer LED starts blinking. Once blinking starts it means, Key is learned. Blinking continues up to 30 seconds. 4. Within the 30 seconds switch OFF the ignition and take out the key. Then insert the second key and switch ON the ignition. Immobilizer LED continues to be ON and starts blink. This means second key is learned. Blinking will continue up to next 30 sec. 5. For more e-keys repeat step number 4. Up to six Keys can be learned at a time. 6. Now exit from the software and switch off ignition. 7. Again switch ON ignition and open Immobilizer software. Select “Locking, Key Routines”. 8. Check the status of learning by selecting the option “Transponder Key learning STATUS “. Also check the status of each key by Immobilizer LED. After inserting the learned key, if LED goes off it means keys are learned. Note: All E-keys need to be learnt, as ICU removes all memory of existing keys except the one used while initiating the procedure. If any of the key is left without learning that means it will not be a functional one. PAIRING OF EMS-ECU & IMMOBILIZER CONTROL UNIT: A. For replacing only Immobilizer Control Unit (ICU):  Star t the Diagnost ic sof tware and selec t