Vehicle Platform: OSPREY / AMP
ECU Name: PEPS
DTC Troubleshooting Data
Version: 1.2
Date: 29 Mar 2017
Author:
Rajasekhara Reddy
Page: 133 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.
B164F–04:- LF Functionality – System Internal Failures
Overview:-
ISO Code (DTC Code)
B164F-04
Customer Symptom
Passive entry & passive start is not working
Fault Effects (On Vehicle)
1. Passive entry & passive start won’t work And
2. “NoKeyDetectionTelltale” is present in instrument cluster
even if UID is present.
Lamp Status (If Any)
NA
Fault Detection Condition
On pressing the start-stop switch or pressing the door handle
switch or on last door close, if PEPS detects the internal failure
then PEPS logs this DTC.
Normal Operating Condition
1. Passive entry works properly And
2. Passive start works properly And
3. No “NoKeyDetectionTelltale” is present in instrument cluster
with UID is present inside the vehicle.
Probable Trouble Area
PEPS ECU
Healing Condition
Ignition Transition:- IGN OFF
IGN ON
IGN OFF
On IGN ON during UID authentication no DTC is logged by
PEPS.
Table30:-
B164F - 04 overview details
Component Details:-
PEPS ECU
Preliminary Checks:-
NA
Troubleshooting:-
Replace PEPS ECU. Follow the ECU replacement procedure without skipping any step.
DTC’s confirmation:-
After replacement, on IGN ON ensure no active DTC “B164F-04” is present in PEPS ECU fault memory.
Circuit Schematic Diagram:-
NA




