2020 / 4910
Vehicle Platform: Tiago,Tigor & Osprey
ECU Name: Hella Body Control Module (BCM)
DTC Troubleshooting Data
Version: 2.0
Date: 22-10-2018
Author: Parag K
Page: 677 of 737
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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.
B1325 – 23 : Express down switch – Signal Stuck Low
Start
Connect the Diagnostic Tool and check for DTCs
Is DTC B1325 – 23
present?
STOP
Check DTC present is Current or history
Yes
History?
Yes
Is DTC B1325 –
23 present?
C
Yes
C
Any fault observed ?
Correct the
fault
Check continuity between BCM
connector pin
[C1-16]
and BCM
ground
[C1-34/C1-47]
.
Disconnect vehicle battery connection.
(Please follow safety guidelines)
1. Remove BCM connector and check for backout/
pins bend/damages.
2. Remove the switch connector and check for
backout/ pins bend etc
1. Clear the DTC from memory.
2. Turn the IGN to OFF.
3. Start the IGN.
4. Check for DTCs.
No
Is continuity found ?
Correct
the wiring
harness
Replace switch and check the window operation
Is function working
Normally ?
BCM ECU faulty
Replace BCM ECU
No
Yes
No
Yes
No
Yes
No
No