KMS IB/IA23, Manual

Page: 17 / 25

KMS IB/IA23 manual
Version 3.01 17
6 Fault tracing
Fault Possible cause Solution
No communication between ECU
and PC - No power supply to the system
- Cable connected to wrong COM
port (standard is COM1)
- Switch the contact on or check the
fuse
- Connect cable to COM1 or select
another COM port
Engine does not start - No engine speed signal
- Crank Type set is not correct - Check the sensor and wiring
- See section 3.2.4.1.
Auto calibration gives message
'warning range too small'
Auto calibration gives message
'warning signal reversed'
Auto calibration gives message
'engine load sensor not
connected'
- Sensor range too small or
potentiometer connected
incorrectly
- Throttle valve potentiometer
turns in the wrong direction
- The engine load sensor signal
does not change
- Interruption in potentiometer
signal wiring
or potentiometer does not turn
when the throttle valve is opened
- Check the wiring
- Fill in the values of the engine
load sensor manually
- Interchange the earth and 5V
wiring of the potentiometer
Only coils 1-4 give ignition - Dis coil box not ticked - See paragraph 3.2.4.1.