1. Sensor (black wire)
2. Sensor signal - (grey wire)
3. Heater ground connection (white)
4. Heater power supply (white)
AXONE: PARAMETERS
Lambda probe
Example value: 0 - 1000 mV
If there is a short circuit at + 5 V or higher, the read value is equal to approximately 1250 mV (the
corresponding error will be displayed on the Axone). If there is a short circuit on ground connection, the
read value is equal to 0 mV and the Lambda sensor correction parameter indicates 1.5: no error will be
displayed.
Lambda integrator
Example value: 1.00
In closed loop, the value must be close to 1.0 (values not within the 0.7 - 1.3 interval indicate a fault).
In an open circuit, the lambda probe signal is too low. Therefore, the control unit takes it as a lean
combustion condition and will try to enrich it. The value read will be 1.5
AXONE: STATUSES
Lambda check
Example value:
Open loop / Closed loop
Closed loop indicates that the control unit is using the lambda probe signal to keep the combustion as
close as possible to the stoichiometric value.
AXONE: ELECTRICAL ERRORS
Lambda probe
- Generic error.
Error cause
•
If shorted to positive: excessive voltage (battery voltage) has been detected at PIN 8 or PIN
2 of the control unit connector.
Troubleshooting
•
if shorted to positive: with key set to ON, disconnect the sensor connector and measure PIN
1 voltage (pink/yellow cable) on the cable harness side: if there is voltage (5 or 12 V), restore
cable harness; if there is no voltage, measure voltage at PIN 2 on the cable harness side
(green/yellow cable); and if there is voltage, restore cable harness; if there is no voltage,
replace the lambda probe. After the cable harness has been restored or the probe replaced,
the lambda probe error will remain active until an operation cycle is completed
Lambda probe heating - Lambda probe that does not get into cycle
Error cause
•
Short circuit/open circuit: lambda probe that does not get into cycle.
Troubleshooting
V7 Classic
Electrical system
ELE SYS - 51
Revente Interdite - Revendita Vietata - Resaling Forbiden - Wiederverkauf Verboten