Fail-Safe Function - Suzuki GSX-R1000 2007 Service Manual

4-22 FI SYSTEM DIAGNOSIS

FAIL-SAFE FUNCTION

FI system is provided with fail-safe function to allow the engine to start and the motorcycle to run in a mini-
mum performance necessary even under malfunction condition.
ITEM
CMP sensor
IAP sensor
TP sensor
ECT sensor
IAT sensor
AP sensor
Ignition signal
Primary injection signal
FAIL-SAFE MODE
When camshaft position signal has
failed during running, the ECM
determines the cylinder positions as
# to be the same as before occur-
rence of such a failure.
Intake air pressure is fixed to 101
kPa (760 mmHg).
The throttle opening is fixed to full
open position.
Ignition timing is also fixed.
Engine coolant temperature value is
fixed to 80 °C (176 °F).
Cooling fan is fixed on position.
Intake air temperature value is fixed
to 40 °C (104 °F).
Atmospheric pressure is fixed to 101
kPa (760 mmHg).
#1 ignition-off with #1 fuel-cut
(primary side and secondary side)
#2 ignition-off with #2 fuel-cut
(primary side and secondary side)
#3 ignition-off with #3 fuel-cut
(primary side and secondary side)
#4 ignition-off with #4 fuel-cut
(primary side and secondary side)
—
—
—
—
STARTING
ABILITY
"NO"
Motorcycle can run, but once engine
stops, engine can not start.
"YES"
"YES"
"YES"
"YES"
"YES"
"YES"
#2, #3 & #4 cylinders can run.
"YES"
#1, #3 & #4 cylinders can run.
"YES"
#1, #2 & #4 cylinders can run.
"YES"
#1, #2 & #3 cylinders can run.
"YES"
#2, #3 & #4 cylinders can run.
"YES"
#1, #3 & #4 cylinders can run.
"YES"
#1, #2 & #4 cylinders can run.
"YES"
#1, #2 & #3 cylinders can run.
RUNNING
ABILITY
"YES"
"YES"
"YES"
"YES"
"YES"
"YES"
"YES"
"YES"
"YES"
"YES"
"YES"
"YES"
"YES"
"YES"