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03-June-2014
Prepared Author
:
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Review & approved by
: R A Rode (ERC-E&E)
Page: 59 of 67
Copyright ©
TATA MOTORS Ltd.
This document must not be used in any way, such as copying and redistributing to third parties, without the consent of author.
B163A-14: Vehicle immobilizer control module Status Indicator short to Ground or Open Circuit
Overview:
ISO Code
B163A-14
DTC simple Description
Immobilizer Status LED short to ground or Open Circuit
Customer Symptom
No impact on functioning but status LED remains ON
Fault Effects (On Vehicle)
No Impact
Lamp Status (If Any)
Off
Fault Detection Condition
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Probable Trouble Area
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Healing Condition
Off
Component Details:
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Preliminary Checks:
Not applicable
Trouble Shooting:-
Step Checks
IF YES
IF NO
1
Check the continuity between immo pin 5 & instrument
cluster pin 20 any open circuit or short to ground.
Rectify fault
Go to next step
2
Change the instrument cluster
Go to next step
3
Replace the immobilizer
DTC’s confirmation:-
Before handover to customer, ensure that vehicle will start without any error
Circuit Schematic Diagram:
Please refer the immobilizer circuit schematic
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Component Location & Image:-