4289 / 4910
Copyright ©
TATA MOTORS Ltd.
This document must not be used in any w ay, such as copying and redistributing to third parties, w ithout the consent of author.
SRS / Airbag
ECU – DTC Troubleshooting Guide
Version: 14.0
Date: 14-February-2017
Prepared by:Airbag CoC Review &Approved
by:Sanjeev VM
Page: 20 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
(
least 2 to 3 times)
IS DTC
STILL
PRESENT?
TURN OFF IGNTION. AND REPLACE
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
TURN ON IGNITION.
CLEAR DTC’s & CHECK FOR DTC’s.
STOP
CONNECT THE
AIRBAG ECU, W/H
& DRIVER
AIRBAG
MODULE IN
VEHICLE
1.TURN OFF IGNITION.
2.REPLACE THE AIRBAG ECU WITHA NEW
ONE.
YES
IS DTC
STILL
PRESENT?
YES
START
B00012B::
Driver Frontal
Stage 1
Deployment
Controlsignal
cross coupled
.