{Osprey CCM} DTC Troubleshooting Data Version: 2.0 Date: 28-Jul-17 Author: ERC Page: 125 of 244 Copyright © TATA MOTORS Ltd. This document must not be used in any way, such as copying and redistributing to third parties, without the consent of author. Trouble Shooting:- START CONNECT THE DIAGNOSTIC TOOL AND CHECK FOR DTC’S IS DTC PRESENT? CHECK DTC PRESENT IS PERMANENT OR HISTORY IS DTC PERMANENT? CLEAR DTC CHECK THE FATC HVAC SIDE CONNECTOR (BLUE) & FRESH RECIRCULATION ACTUATOR FOR PIN BACK OUT ARE PINS OK? IS CONTINUITY PRESENT? MODE MOTOR DRIVE LINE IS SHORT TO BATTERY IF ALL THE ABOVE CHECKS FAIL STOP FIX THE PROBLEM IS DTC PRESENT? NO YES CHECK FOR THE CONTINUITY BETWEEN PIN NO 14,PIN NO 15 OF FATC HVAC SIDE ECU CONNECTOR(BLUE) AND BATTERY PIN N0 15,16 OF VEHICLE SIDE ( GREEN) CONNECTOR HIGH RISK OF ECU DAMAGE RECTIFY THE WIRING HARNESS REPLACE ECU B1F2E12::MODE (AIR DISTRIB) DRIVE LINE SHORT TO BATTERY YES YES NO NO YES NO CRANK THE VEHICLE AND CHECK FOR DTC’S NO ECU IS FAULTY YES
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