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Battery Warranty Data Analysis, INFOTAINMENT SYSTEM HYPOTHESIS TESTING -…
Battery Warranty
Data Analysis
Localização e
destino
País de destino
Dealer que fez o reparo
Cidade, estado e país do reparo
Ambiente urbano
Ambiente rural
Ambiente com maresia
Regiões quentes
Garantia de componentes elétricos
e de powertrain
Alternator
Regulador de tensão
Motor starter
Compressor do ar condicionado
Sensor de posição do Crankshaft
Ventilador de arrefecimento do motor
Sensores causadores de
misfire
Spark Plugs
Ignition Control Module
Camshaft Position Sensor
Oxygen Sensors (O2 Sensors)
Mass Air Flow (MAF) Sensor
Throttle Position Sensor
Fuel Injectors
Motor
Tipos específicos de motor
Performance do motor (reparos anteriores ou
posteriores à troca da bateria)
Condição da falha
Bateria com zinabre
Bateria sulfatada e/ou corroída
Quilometragem &
MIS (idade)
Baixo MIS e alta quilometragem
Baixo MIS e baixa quilometragem
Alto MIS e baixa quilometragem
Alto MIS e alta quilometragem
Temporal &
Sazonalidade
Dia do reparo
Mês do reparo
Ano do reparo
Dia da semana do reparo
Altitude
INFOTAINMENT SYSTEM HYPOTHESIS TESTING
Localização e
destino
Dealer que fez o reparo
Cidade, estado e país do reparo
Ambiente urbano
Ambiente rural
Ambiente com maresia
Regiões quentes
País de destino
Garantia de componentes
elétricos
Alternator
Regulador de tensão
Motor starter
Compressor do ar condicionado
Sensor de posição do Crankshaft
Ventilador de arrefecimento do motor
Sensores causadores de
misfire
Spark Plugs
Ignition Control Module
Camshaft Position Sensor
Oxygen Sensors (O2 Sensors)
Mass Air Flow (MAF) Sensor
Throttle Position Sensor
Fuel Injectors
Motor
Tipos específicos de motor
Performance do motor (reparos anteriores ou
posteriores à troca da bateria)
Condição da falha
Quilometragem &
MIS (idade)
Baixo MIS e alta quilometragem
Baixo MIS e baixa quilometragem
Alto MIS e baixa quilometragem
Alto MIS e alta quilometragem
Temporal &
Sazonalidade
Dia do reparo
Mês do reparo
Ano do reparo
Dia da semana do reparo
Altitude
SKILL UP WORKFLOW
DEVELOPMENT
(1)
Pre-investigation analysis
Warranty data analysis
Analysis of other correlated parts
Battery warranty data
Alternator warranty data
regulator warranty data
Hypothesis testing and
bivariate analysis
Customer voice
QFS survey
Vehicle Model
Line/Off
Mileage (KM)
Failure Mode
City & State (UF)
Mobile brand
Mobile model and/or OS
Repair
Customer took vehicle for repair?
Number of repair visits?
Questions about
QFS Survey
Amongst the customers that complain about multimedia issues, what are the most common brands of mobiles? And what about OS?
For the people that are complaining about connectivity issues, are most of them from the same group of people (age, height, gender and place of living - city/state)? Are there any tendencies among different groups of customers?
What is the bothersome rating for issues regarding connectivity? How do people rate the infotainment system and their Toyota experience in general?
Do the same people that rate their infotainment system's experience as bad also rate their other vehicle experiences as bad as well?
For the people that complained about their infotainment system, did they go to the dealer to perform any repair? If yes, how many times did they visit the dealer?
How many complaints regarding multimedia are there, when compared to all categories of issues?
Based on the amount of cars that were produced and sold in a particular month, what is the overall percentage of people that were not surveyed and that have a likelihood of having problems related to their multimedia system?
Fleet management survey
Customer Relations (SAC) complaints
Most common complaints
Potential Buy-Backs
Dealer diagnosis
(2)
Parts Analysis
Error logs analysis
Analysis of RSSI signals
(3)
Reproduction Test
Reproduction test @ PRAC com celular de gerente
Reproduction test usando aplicativo de leitura de RSSI
(4)
Failure Mechanism
Poor connection between iPhone
and Harman
Disconnection after WhatsApp call
Intermitency in failure
(5)
Supplier Analysis
Report provided by supplier w/ logs of error
(6)
Root Cause
(7)
Countermeasure
Jumonsho & ECR information
C/M for European Yaris
Original FTR
Original CRS
Official C/M implemented: What was it?
(8)
Implementation Schedule
Jumonsho/ECR for C/M implementation
Conversationg w/ Artur e Jan(?) from Harman