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Vehicle Platform: OSPREY
ECU Name: Hella Body Control Module (BCM) DTC
Troubleshooting Data
Version: 1.4
Date: 15 May 2018
Author: Body CoC
Page: 772 of 855
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.
U1303 – 88 : LIN bus B bus OFF
Start
Connect the Diagnostic Tool and check for DTCs
Is DTC U1303 –88
present?
STOP
Check DTC present is Current or history
Yes
History?
Yes
Is DTC B1303 –
88 present?
C
Yes
C
Any fault observed ?
Correct the
fault
Check BCM side connector.
Disconnect vehicle battery connection.
(Please follow safety guidelines)
Check whether there is any fault on LIN
transceiver.
1. Clear the DTC from memory.
2. Turn the IGN to OFF.
3. Start the IGN.
4. Check for DTCs.
No
Is loosely connected ?
Connect
firmly
Check for harness wire short
Is harness wire short ?
BCM ECU faulty
Replace BCM ECU
No
Yes
No
Yes
No
Yes
No
No
Correct
wiring
harness