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OSPREY- Application
DTC Troubleshooting Data
Version: 4.0
Date: 10-02-2017
Prepared by: Mithipati Prasad
Checked by: G S Raju / Senthilnathan S
Page: 568 of 654
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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.
P3017: Vehicle Immobilizer Control Module invalid key used
Overview:
DTC Description as per ISO standard
Vehicle Immobilizer Control Module invalid key used
ECU Pin Number
-
Customer Symptom
Vehicle cannot be started.
Fault Effects (On Vehicle)
Vehicle cannot be started.
Lamp Status
Immobilizer status lamp will come ON.
Fault Detection Condition (Root cause)
This fault occurs when unlearnt/invalid key (Transponder key which
is not paired to Immo) is used to perform the vehicle start
Normal Operating Condition
Valid vehicle key is used for vehicle start.
Successful authentication between Immo and EMS.
Probable Trouble Area
Immobilizer, transponder key (E-Key).
Healing Condition
After Successful Immo Pairing, In the same Ignition cycle if EMS /
Immo hasn’t entered anti scanning mode.
After Successful Immo pairing, give a power latch of 20 secs and
turn the Ignition ON.
Component Details:
Immobilizer system is designed to prevent vehicle theft by electronically disabling the engine starting system. The engine
can be started only with vehicle’s original immobilizer ignition key, which has an electronic id
entification programmed
code. Immobilizer unit (ICU) is an add-on part on the ignition switch, fitted on the steering column. The engine can be
started only with the vehicle’s original immobilizer ignition key. The electronic key
communicates the identification code to
ICU when the key is turned to the "Ignition ON" position.
Engine will allow the Vehicle cranking only if the authentication between EMS and IMMO is successful and Transponder /
key used for cranking is paired to the Immobilizer unit.
Preliminary Checks
x
Check whether the customer voice / view about the issue is matching with the fault effects mentioned above. If
yes, go ahead with next steps. If not, check for other DTC’s presence.
x
Check whether similar complaints are earlier reported. If yes, perform the preliminary checks with respect to
earlier issue closure.
x
As this fault is related to Key pairing between vehicle transponder / Key and immobilizer unit, check for faults in
Immobilizer and rectify the fault by following its rectification procedure.
Trouble Shooting:
Step Checks
IF YES
IF NO
1.
Check for corresponding fault in Immobilizer unit. Rectify
the fault by following its rectification procedure. Action
Successful?
Go to next step
Replace the
Ignition lock set
along with