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TATA MOTORS Ltd.
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SRS / Airbag
ECU – DTC Troubleshooting Guide
Version: 14.0
Date: 14-February-2017
Prepared by:Airbag COC Review &
Approved by:Sanjeev VM
Page: 263 of 549
c) Ensure the Airbag Warning Lamp Indication is continuously ON in Instrument Cluster for
4 seconds
after
Ignition ON
d) Ensure the Airbag Warning Lamp Indication goes OFF after
4 seconds
from Ignition ON.
Circuit Schematic Diagram:-
Schematic shown below for illustration
Battery>>>>>Fuse>>>>Relay>>>>>>>Sensor/Actuator>>>>>ECU
Component Location & Image:-
Fig242:- Crash output circuit between Airbag ECU & BCM ECU
Connector Location:-
The Chamber Coding & color are:
Chamber
Coding
Color
Chamber A
D
Blue
Chamber B
C
Brown
+
V
12
Battery
A23
CAN H
Ignition Sw itch
CAN L
A12
A7
-
RESTRAINTS
CONTROL
MODULE
A1
A2
Fuse 10A
A5
CRO
Vbat