Download Push Button Start handout - OpenSIUC

NACAT ’09: Push Button Start Presentation, Matt Dixon and Omar Trinidad
Southern Illinois University Carbondale
Name of system,
and/or remote:
Vehicle Entry/
disarming the alarm:
ECU the remote
communicates with:
Start/Stop Switch
Button:
ECU(s) that monitor
Start/Stop Switch:
Security ECU(s):
‘09 Dodge Challenger
Keyless Go
FOBIK ( Finger Operated
Button Integrated Key)
Operator presses
unlock on FOBIK which
is read by WIN, bussed
message to door
modules to unlock
PEM
(Passive Entry Module);
WIN detects all button
presses
Stage 1: Detects
presence of
(removable) button
Stage 2: momentary
contact detects press
Switch directly part of
WIN
(Wireless Ignition Node)
WIN
ECU that plays role of
Ignition Switch:
Remote Failure
Strategy:
TIPM (Totally Integrated
Power Module)
Pry button off at
6 o’clock position Insert
FOBIK and rotate, WIN
reads transponder in
FOBIK
Icons and Display:
EVIC (Electronic Vehicle
Information Center)
built into instrument
cluster, provides
ignition mode messages
‘09 Acura TL
Keyless Access
Remote
‘05 Toyota Avalon
Smart Key
Remote passively
detected by antennas,
status bussed by
Keyless Access ECU,
driver’s MICU disarms,
operator grasps
capacitive door handles
Doors unlock
Keyless Access ECU
Smart Key passively
detected by antennas,
status shared over LIN
by Smart Key ECU
Operator grasps
capacitive door handles
Doors unlock
2 momentary contact
switches: one switches
12 volts, other switches
ground
2 momentary contact
switches: both pull
voltage from PSC ECU
low
(Power Switch Control)
PSC
(Power Switch Control)
and Smart Key ECU
Smart Key ECU and
Immobilizer ECU
PCU (Power Control
Unit), Remote Slot ECU,
Keyless Access ECU
Drivers MICU
(Multiplexed Integrated
Control Unit) which
contains Immobilizer
PCU
Insert remote into
Remote Slot, antenna
communicates with
transponder, Remote
Slot ECU busses to
immobilizer
Keyless Access ICON
built into cluster,
Display readout on top
of instrument cluster,
Green LED in switch
Smart Key ECU
PSC
Hold Smart Key near
Start/Stop switch,
antenna communicates
with transponder, Start/
Stop switch hardwired
to Smart Key ECU
Different colored LED’s
in switch, Keyless ICON
built into cluster
Communication
Networks:
CAN C (High Speed),
CAN B (Medium Speed),
Diagnostic CAN C used
for scan tool
communications
Accessory Mode:
WIN broadcasts mode
over CAN, some
modules activate from
bussed message, TIPM
grounds control of ACC
relay
TIPM grounds control of
run and run/start
relays.
WIN powers F20 circuit
to TIPM
WIN broadcasts mode
over CAN C
WIN powers F20 circuit
to TIPM
PCM grounds control
side of starter relay
Run Mode:
Start Request:
Starter Circuit Control:
PCM Ignition Feeds:
SRS ECU Ignition
Feed(s):
C1 11: ACC, Run, Start
powered from TIPM;
C1 12: powered from
run/start relay
Fuse 41 from run relay
Fuse 27 from run/start
relay
F-CAN (High Speed),
B-CAN (Medium Speed),
K-Line used for many
scan tool functions,
private module to
module data lines
PCU grounds control of
accessory relay
PSC powers control side
of accessory relay
PCU activates 3 internal
relays to provide 3
output circuits: IG1A,
IG1B, IG2
PSC provides power to
control sides of IGN 1,
IGN 2 and Start Cut-Out
relays
12 volt signal from PCU
to PCM known as “STS”
12 volt signal from PSC
to PCM known as
“STSW”
PCM powers and P/N
switch grounds the
control sides of starter
relays 1 and 2; switched
side of relays wired in
series
PCM powers “STAR”
circuit which feeds
switched side of starter
cut out relay which
feeds circuit through
park/neutral switch and
control side of starter
relay
D 9: IG 1 from IG 1 relay
B 42: IGN 1 from PCU
A 13: ACC from ACC
Relay
Fuse 11 from IGN 1A,
Fuse 5 from IGN 1B
LIN,
Private module to
module data lines,
CAN (High Speed)
IGN 2 10 amp fuse fed
from IGN2 relay