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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: 360 of 549
U0422-81 Invalid Data Received from
BCM- invalid serial data received
DTC’s confirmation:-
After rectification, ensure the following points using TML diagnostic tool before handing over to cus tomer.
e) Clear the DTC’s & make sure no DTC’s are present for Airbag system
f) Check whether any new DTC’s are getting qualified for repeated cranking.
g) Ensure the Airbag Warning Lamp Indication is continuously ON in Instrument Cluster for
4 seconds
after
Ignition ON
h) Ensure the Airbag Warning Lamp Indication goes OFF after
4 seconds
from Ignition ON.