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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: 298 of 549
B0028-1B:- Right Side Deployment Control circuit resistance above threshold
Overview:-
ISO Code
B0028-1B
Customer Symptom
SRS Warning Lamp continuously ON in Instrument Cluster.
Fault Effects (On Vehicle)
Right Side Airbag deployment not guaranteed, if a crash happens
Lamp Status (If Any)
SRS Warning Lamp continuously ON in Instrument Cluster.
Fault Detection Condition
This fault gets logged if the circuit resistance of Right Side Airbag
is above the threshold value (5.5 Ohm) after 4 seconds of
cranking.
Normal Operating Condition
The maximum threshold for Right Side Deployment Control circuit
is 5.5 Ohm.
Probable Trouble Area
Related wiring Harness, connector or terminals
Right Side Airbag Module
Airbag ECU
Healing Condition
Maximum threshold resistance for Right Side Airbag resistance
should be less than 5.5 Ohm.
Component Details:-
Right Side Airbag Module: -
This airbag is located in seat which inflate between the occupant and door.
Airbag ECU
: - It is fitted in the floor of central console in the car. The Airbag Electronic Control Uni t (ECU) controls
the deployment system to allow an appropriate igniting of the Airbags and belt pre-tensioners to restrain the driver
and passengers
Preliminary Checks:-
1. Check Battery Voltage (12 V & above)
2. Check for any faults in Airbag Warning Lamp indication in Instrument Cluster.
3. Ensure the proper locking of Airbag ECU wiring harness connectors in the vehicle by the locking sound.
Trouble Shooting:-