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Vehicle Platform: OSPREY / AMP
ECU Name: PEPS
DTC Troubleshooting Data
Version: 1.2
Date: 29 Mar 2017
Author:
Rajasekhara Reddy
Page: 109 of 369
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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.
Troubleshooting:-
Start
B1639-06
Is this Historic DTC?
Clear the DTC, make the IGN OFF,
wait for 20 seconds and inspect
the steps mentioned in the
“Inspection Methods”
Is inspection method OK?
Stop
YES
YES
Read & confirm PEPS ECU AES-SK
key
Read & confirm EMS ECU AES-SK
key
Are both the ECU AES keys
are same?
Make both the keys to same value
Clear the DTC, make the IGN OFF,
wait for 20 seconds and inspect
the steps mentioned in the
“Inspection Methods”
NO
Is inspection method OK?
Clear the particular DTC
Stop
YES
NO
Replace the PEPS ECU. Follow the
defined replacement procedure.
Stop
YES
Still problem persist i.e. DTC
is appearing?
NO
Please contact EMS ECU owners.
Stop
YES
Is DTC persist?
YES
NO