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03-June-2014
Prepared Author
:
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Review & approved by
: R A Rode (ERC-E&E)
Page: 40 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.
U3007- 14:- Control Module Input Power "A"- circuit voltage
Circuit Short To Ground Or Open
Overview:
ISO Code
U3006 - 14
Customer Symptom
None
Fault Effects (On Vehicle)
No VICM Functionality
Lamp Status (If Any)
None
Fault Detection Condition
If Battery(supply) voltage greater than 16V
Alternator voltage o/p is greater than 14.5V.
Normal Operating Condition
Normal operating range:
ECU will be awake from 6V to 16 V.
Full assistance is b/w 11.5 to 16 volts.
Reduced assistance is b/w 9 to 11.5 V
Probable Trouble Area
Alternator output voltage high
Healing Condition
N/A
Component Details:
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Preliminary Checks:
6. Voltage at the battery terminals should be greater than 11.5V.
7. VICM power supply connector should have greater than 11.5V for full assistance.
8. Check battery cable and VICM connector terminals for damage.
9. Check VICM ECU for pin bend/damage.
10. Alternator output voltage should be between 13.5 V to 14.5 V in engine running condition.