Fail-Safe Function - Suzuki DL1000 Service Manual

4-26 FI SYSTEM

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
Intake air pressure sensor Intake air pressure is
Throttle position sensor
Engine coolant tempera-
ture sensor
Intake air temperature
sensor
Atmospheric pressure
sensor
Ignition signal
#1
#2
Injection signal
#1
#2
Secondary throttle valve
actuator
Secondary throttle posi-
tion sensor
Gear position signal
Heated oxygen sensor
"Yes" means that the engine can start and can run even if the above signal is not received from each sensor.
But, the engine running condition is not complete, providing only emergency help (by fail-safe circuit). In this
case, it is necessary to bring the motorcycle to the workshop for complete repair.
FAIL-SAFE MODE
fixed to 760 mmHg.
The throttle opening is
fixed to full open position.
Ignition timing is also
fixed.
Engine coolant tempera-
ture value is fixed to
80°C.
Intake air temperature
value is fixed to 40°C.
Atmospheric pressure is
fixed to 760 mmHg.
#1 Ignition-off
#2 Ignition-off
#1 Fuel-cut
#2 Fuel-cut
Secondary throttle valve
is fixed to half open posi-
tion.
Secondary throttle valve
is fixed to half open posi-
tion.
Gear position signal is
fixed to 6th gear.
Fuel-air compensation
ratio is fixed to normal
condition.
STARTING ABILITY
"YES"
"YES"
"YES"
"YES"
"YES"
"YES"
#2 cylinder can run.
"YES"
#1 cylinder can run.
"YES"
#2 cylinder can run.
"YES"
#1 cylinder can run.
"YES"
"YES"
"YES"
"YES"
RUNNING ABILITY
"YES"
"YES"
"YES"
"YES"
"YES"
"YES"
"YES"
"YES"
"YES"
"YES"
"YES"
"YES"
"YES"