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Backups - Kawasaki Versys 1000 Service Manual

Service manual.
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3-46 FUEL SYSTEM (DFI)
Self-Diagnosis
DTC
Service
(Diagnostic
Code
Trouble
Code)
64
P0410
67
P0030
3A
P0443
Notes:
The ECU may be involved in these problems. If all the parts and circuits checked out good, be sure
to check the ECU for ground and power supply. If the ground and power supply are checked good,
replace the ECU.
When no service code is displayed, the electrical parts of the DFI system has no fault, and the
mechanical parts of the DFI system and the engine are suspect.
DTC (Diagnostic Trouble Code) is displayed on the Kawasaki Diagnostic System (KDS Ver.3) and
the Generic Scan Tool (GST).

Backups

The ECU takes the following measures to prevent engine damage when the DFI, ignition or immo-
bilizer system parts have troubles.
Service
Parts or
Codes
Function
Main Throttle
11
Sensor
Intake Air
12
Pressure
Sensor #1
Intake Air
13
Temperature
Sensor
Water
14
Temperature
Sensor
Intake Air
16
Pressure
Sensor #2
System
Secondary air switching valve malfunction, wiring open,
FI
short to ground or power supply wire
Heater malfunction, wiring open, short to ground or power
FI
supply wire
Purge valve malfunction, wiring open, or short to ground
FI
or power supply wire
Output Signal Usable
Range or Criteria
Output Voltage
0.2 ∼ 4.8 V
Intake Air Pressure
(Absolute)
Pv = 150 ∼ 800 mmHg
Intake Air Temperature
Ta = – 30 ∼ + 120°C
Water Temperature
Tw = – 30 ∼ + 120°C
Atmospheric Pressure
(Absolute)
Pa = 100 ∼ 900 mmHg
Problems
Backups by ECU
If the main throttle sensor system fails (the
output voltage is out of the usable range,
wiring short or open), the ECU locks ignition
timing into the ignition timing at closed throttle
position and sets the DFI in the D-J method
(1). Then the ECU stops the KTRC and the
feedback control with the oxygen sensor.
If the intake air pressure sensor #1 system
fails (the signal is out of the usable range,
wiring short or open), the ECU sets the DFI
in the α-N method (2). Then the ECU stops
the KTRC and the feedback control with the
oxygen sensor.
If the intake air temperature sensor system
fails (the signal is out of the usable range,
wiring short or open), the ECU sets Ta at 40°C.
Then the ECU stops the feedback control with
the oxygen sensor.
If the water temperature sensor system fails
(the signal is out of the usable range, wiring
short or open), the ECU sets Tw at 80°C and
the radiator fan operates. Then the ECU stops
the feedback control with the oxygen sensor.
If the intake air pressure sensor #2 system fails
(the signal is out of the usable range, wiring
short or open), the ECU sets Pa at 760 mmHg
(the standard atmospheric pressure). Then the
ECU stops the KTRC and the feedback control
with the oxygen sensor.

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