HARRIER BOOK 2

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: 46 of 549

B0010-11:- Passenger Frontal Stage 1 Deployment Control circuit short to ground

Overview:-

ISO Code

B001011

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 any of the high side (A17) or low side pin

(A18) of Passenger Airbag gets shorted with ground line.

Normal Operating Condition

No short with ground should be present.

Probable Trouble Area

Related wiring Harness, connector or terminals

Passenger Airbag Module

Airbag Wiring Harness

Airbag ECU

Healing Condition

Remove the short to ground.

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 Electronic 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:-