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OSPREY- Application
DTC Troubleshooting Data
Version: 4.0
Date: 10-02-2017
Prepared by: Mithipati Prasad
Checked by: G S Raju / Senthilnathan S
Page: 613 of 654
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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.
U0140: Loss of communication with Body Control Module- Bus Signal/
Message Failure
Overview:
ISO Code
U0140
Customer Symptom
Reverse indication will not work
Fault Effects (On Vehicle)
BCM will not work
Lamp Status (If Any)
-
Fault Detection Condition
1. BCM connector is not connected properly or
disconnected from its location.
2. CAN wire from BCM connector side is
disconnected.
3. BCM is not powered up.
4. CAN_H, CAN_L or/ and both lines of BCM are
opened.
Normal Operating Condition
ECM ECU communicates properly with BCM ECU
Probable Trouble Area
1. Disconnection of the BCM ECU connector
2. CAN_H and CAN_L lines at BCM connector end
Healing Condition
1. To fix the BCM connector correctly
2. Fix the wiring harness issues from BCM side.
3. CAN_H, CAN_L or/ and both lines of BCM are
connected properly to the BCM connector.