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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: 125 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.
B1644–05:- Partial or No UID Pairing Done – System programming Failures
Overview:-
ISO Code (DTC Code)
B1644-05
Customer Symptom
NA
Fault Effects (On Vehicle)
1. Passive entry will not work with all paired UIDs And
2. Passive start will not work with all paired UIDs And
3. On pressing the start-stop switch, “NoKeyDetectionTelltale”
is present in instrument cluster even if UID is present (whose
pairing is not successful) inside the vehicle And
4. Passive entry & passive start will work fine with one UID but
not with all other UIDs.
Lamp Status (If Any)
NA
Fault Detection Condition
This DTC will get logged during PEPS-UID pairing as well as
IGN ON. If pairing is started but only one UID gets paired out
of 2 UIDs, then PEPS logs this DTC.
OR
At IGN ON PEPS checks whether any UID is paired with PEPS
or not. If no single UID is paired with PEPS, then PEPS logs
this DTC.
Normal Operating Condition
1. Passive start is working fine with all paired UIDs And
2. Passive entry is working fine with all paired UIDs And
3. On pressing the start-stop switch, No
“NoKeyDetectionTelltale” is present in instrument cluster with
UID is present inside the vehicle.
Probable Trouble Area
1. UID (Smart Key) And
2. Central Console LF Antenna. (Immo antenna) And
3. PEPS ECU
Healing Condition
Ignition Transition:- IGN OFF
IGN ON.
On IGN ON during UID authentication no DTC is logged by
PEPS.
Table28:-
B1644- 05 overview details
Component Details:-
1. UID (Smart Key)
2. PEPS ECU
3. Central Console Antenna (Immo Antenna)
Preliminary Checks:-
1.
Check the battery voltage. It should be 9V and above.
2.
Check respective ECU pins for oxidation, bending, & damage.
3.
UID shall be inside and up to 7cm around the Front / Center console antenna.
Troubleshooting:-