APRILIA MSS Mana GT ABS Service Station Manual page 99

MSS Mana GT ABS
3. Heater ground connection (white)
4. Heater power supply (white)
THE CONNECTION DIAGRAMS ARE IN THE ELECTRICAL SYSTEM SECTIONS; PAY ATTENTION
TO THESE DIAGRAMS AS THEY SHOW THE CONNECTOR/COMPONENT AS VIEWED FROM
THE CABLE HARNESS SIDE, THAT IS LOOKING AT THE CABLES WHEN GOING OUT OF THE
"MAIN" CABLE HARNESS AND INTO THE CONNECTOR/COMPONENT.
CAUTION
BEFORE CARRYING OUT ANY TROUBLESHOOTING, CAREFULLY READ THE GENERAL TROU-
BLESHOOTING CONCEPTS FOR ELECTRICAL DEVICES AT THE BEGINNING OF THE CHECK
AND CONTROL SECTION IN THE ELECTRICAL SYSTEM CHAPTER.
AXONE: FUEL INJECTION SYSTEM
PARAMETERS
Lambda probe
Example value: 0 - 1000 mV
Signal when energised that the control unit receives from the lambda probe: inversely proportional to
the presence of oxygen.
Lambda integrator
Example value: 0,00 %
In closed loop, the value must be close to 0.00 (values not within the interval from -10.0 % to 10.0 %
indicate a fault): for example, value 25% corresponds to +25% with respect to the reference injection
time; -25% corresponds to -25%. In an open circuit, the lambda probe signal is too low. Therefore, the
control unit takes it as a lean mixture condition and will try to enrich it. The value read will be +25%:
once this correction has been tried, the value shifts to 0.00 fixed and the Lambda probe error is signalled.
STATUSES
Lambda
Example value:Open loop / Closed loop
It indicates if the control unit is using (CLOSED) the lambda probe signal to keep the stoichiometric
combustion. At idle CLOSED only if: Air T >10° and engine T > 18° and engine running for at least 1-2
minutes.
ELECTRICAL ERRORS
Lambda probe P0130 - shorted to positive / open circuit, shorted to negative.
Error cause
•
If shorted to positive, excessive voltage has been detected at PIN 22 of connector B (BLUE).
If the circuit is open, shorted to negative, no voltage has been detected. In both cases, the
recovery function is hardly noticeable for the customer.
Troubleshooting
Electrical system
ELE SYS - 99