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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: 97 of 549
TURN ON IGNITION.
CONNECT THE
DIAGNOSTIC TOOL AND CHECK FOR DTC’s
IS DTC
PRESENT?
CLEAR DTC. TURN OFF & ON IGNITION &
CHECK FOR DTC’s
(at least2
to 3 times)
IS DTC
STILL
PRESENT
?
TURN OFF IGNTION. AND REPLACE
THE AIRBAG WIRING HARNESS
WITH A NEW ONE.
YES
NO
NO
YES
NO
TURN OFF &
ON IGNITION.
CLEAR DTC’s
& CHECK FOR
DTC’s
IS DTC
PRESENT?
NO
STOP
YES
TURN ON IGNITION.
CLEAR DTC’s & CHECK FOR DTC’s.
RE-CONNECT THE
AIRBAG ECU, W/H
& DRIVER FIS
MODULE
IN
VEHICLE
1.TURN OFF IGNITION.
2.REPLACE THE AIRBAG ECU WITHA NEW
ONE
IS DTC
STILL
PRESENT?
YES
START
B100E2B::
Frontal Impact
Driver Sensor
signal cross
coupled
.