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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: 137 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.
B1318 – 11:- Driver Door Handle Switch – Short to Ground
Overview:-
ISO Code (DTC Code)
B1318 - 11
Customer Symptom
Unable to lock/unlock vehicle by pressing driver door handle
switch.
Fault Effects (On Vehicle)
Unable to lock/unlock vehicle by pressing driver door handle
switch.
Lamp Status (If Any)
N.A.
Fault Detection Condition
1. If Driver DHS is press and hold for more than 20 secs,
DTC will log.
2. If Input switch test routine is executed and low to high
transition is not detected than DTC will log.
Normal Operating Condition
1. Vehicle battery voltage shall be normal.
2. Driver door handle switch shall not be pressed
continuously for more than 20 secs.
3. Valid paired UID should be present in driver door side
and driver DHS should be pressed.
Probable Trouble Area
1. Permanent short circuit of Driver door handle switch.
2. Wire cut & shorting of Connector-1 / Pin-15 signal with
vehicle body or together.
3. Bending of pins-15 of connector-1 and shorting to each
adjacent pin.
Healing Condition
1. After fixing short to ground fault on driver door handle
switch, passive vehicle locking should be performed
from co-driver DHS or trunk DHS.
2. This is need for driver door handle switch to restore
normal functioning.
3. Finally check passive vehicle locking/unlocking from
driver DHS.
Table32:-
B1318- 11 overview details
Component Details:-
1. Driver door handle switch
2. Driver door handle switch assembly pick-tail.
3. PEPS ECU
Preliminary Checks:-
1. Check vehicle battery voltage, it should be normal.
2. Check ECU pins for oxidation, bending or damage.