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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: 41 of 549
B0010-2B:- Passenger Frontal Stage 1 Deployment Control signal cross coupled
Overview:-
ISO Code
B00102B
Customer Symptom
SRS Warning Lamp continuously ON in Instrument Cluster.
Fault Effects (On Vehicle)
Passenger 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 signal of Passenger Airbag gets
cross coupled with any other Firing loop terminal during Power
ON.
Normal Operating Condition
No cross coupling should be present.
Probable Trouble Area
Related wiring Harness, connector or terminals
Passenger Airbag Module
Airbag Wiring Harness
Airbag ECU
Healing Condition
Cross coupling should be removed & Ignition should be turned
OFF & ON.
Component Details:-
Passenger Airbag Module
:- It is fitted inside the dashboard in front of the co-driver or passenger seat which consists
of a flexible fabric envelope or cushion designed to inflate rapidly during an accident.
Airbag ECU
:- It is fitted in the floor of central console in the car. The Airbag Elec tronic Control Unit (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:-