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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: 169 of 369
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.
B131A – 15:- Trunk Door Handle Switch – Short to Battery or Open
Overview:-
ISO Code (DTC Code)
B131A - 15
Customer Symptom
Passive vehicle unlocking from trunk door side does not work.
Fault Effects (On Vehicle)
Passive vehicle unlocking from trunk door side does not work.
Lamp Status (If Any)
N.A.
Fault Detection Condition
1. Permanent short circuit to battery/open of trunk door
handle switch.
2. Wire cut & shorting to battery/open of Connector-1 /
Pin-11 signal.
3. Bending of pins-11 of connector-1 and shorting to each
adjacent pin.
Normal Operating Condition
1. Vehicle battery voltage shall be normal.
2. Trunk door handle switch shall not be pressed
continuously for more than 20 sec.
3. All doors should be closed and vehicle should be in
lock condition.
4. Valid paired UID should be present in driver door side
and Co-driver DHS should be pressed.
Probable Trouble Area
1. Permanent short circuit to battery/Open of trunk door
handle switch.
2. Wire cut & shorting to battery/open of Connector-1 /
Pin-11 signal with vehicle body or together.
3. Bending of pins-11 of connector-1 and shorting to each
adjacent pin.
Healing Condition
1. After fixing short to battery/open fault on trunk door
handle switch, passive vehicle locking should be
performed from driver DHS or co-driver DHS.
2. This is need for trunk door handle switch to restore
normal functioning.
3. Finally check passive vehicle locking/unlocking from
trunk DHS.
Table37:-
B131A-15 overview details
Component Details:-
1. Trunk door handle switch
2. Trunk door handle switch assembly pick-tail.
3. PEPS ECU