3369 / 4910
Vehicle Platform: OSPREY / AMP
ECU Name: PEPS
DTC Troubleshooting Data
Version: 1.2
Date: 29 Mar 2017
Author:
Rajasekhara Reddy
Page: 87 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.
Check if ACC Relay feedback Line of
ACC relay is shorted to ground.
Continuity
Found?
Correct ACC Relay side wiring
harness (Short to Ground)
PEPS ECU faulty
Replace PEPS ECU.
Yes
No
Check continuity between PEPS mating connector
pin [C2-15] and ACC relay feedback line contact at
ACC Relay (harness side)
Continuity Found?
Yes
Correct ACC Relay side wiring
harness (Open circuit)
No
A
B
DTC’s confirmation:-
After rectification, ensure the following points by using TML diagnostic tool before handing over to customer.
a) DTC B1649 – 14 is not logged.
Circuit Schematic Diagram:-
Note: -
For detailed information please refer latest PEPS wiring harness schematic.