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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: 195 of 549
DTC’s confirmation:-
After rectification, ensure the following points using TML diagnostic tool before handing over to customer.
a) Clear the DTC’s & make sure no DTC’s are present for Airbag system
b) Check whether any new DTC’s are getting qualified for repeated cranking.
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.
IS DTC
PRESENT?
TURN OFF & ON IGNITION
. CLEAR DTC
’s &
CHECK FOR DTC’s
AFTER 5 SECONDS FROM
IGNITION ON
at least
(
)
to 3 times
2
IS DTC
STILL
PRESENT
?
1.CHECK INSTRUMENT CLUSTER FOR
ANY
DTC’s.
2.ISSUE HAS TO BE RESOLVED IN
INSTRUMENT CLUSTER.
YES
NO
NO
YES
TURN OFF &
ON IGNITION
.
CLEAR DTC
’s
& CHECK
FOR DTC’s
IS DTC
STILL
PRESENT?
NO
STOP
YES
START
B101600::
SRSLampStat
us
–
no sub
type
information.
TURN ON IGNITION.
CONNECT THE
DIAGNOSTIC TOOL AND CHECK FOR DTC’s