1. Sensor (black wire)
2. Sensor signal - (grey wire)
3. Heater ground connection (white)
4. Heater power supply (white)
NAVIGATOR: PARAMETERS
Lambda probe
example value: 0 - 1000 mV
If there is a short circuit at + 5 V or above, the value read is approx. 5.000 mV. If there is a short circuit
to ground instead, the value read is equal to 0 mV and the Lambda Sensor Correction parameter shows
25%: no error is displayed, though.
Lambda sensor correction
example value: 1.00
In closed loop, the value must be close to 0 % (values not within the +10 % and -10 % range may
indicate a fault): In an open circuit, the lambda sensor 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%.
NAVIGATOR: 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.
NAVIGATOR: ELECTRICAL ERRORS
Left lambda sensor P0130
- Shorted to positive.
Error cause
•
Excessive voltage (battery voltage) has been detected at PINS 32 and 22 of the BLUE
connector.
Troubleshooting
•
shorted to positive: with the key set to ON, disconnect the sensor connector and measure
voltage at PIN 1 on the cable harness side (white/yellow cable): if there is voltage (5 or 12
V), restore the cable harness; it there is no voltage, measure voltage at PIN 2, cable harness
side, (green/white cable) and if there is voltage, restore the cable harness; if there is no
voltage, replace the lambda sensor
Left lambda sensor heating P0135 -
shorted to positive / open circuit, shorted to negative.
Error cause
•
If shorted to positive: excessive voltage has been detected at PIN 11 of the BLUE connector.
•
If the circuit is open, shorted to negative: voltage equal to zero has been detected at PIN 11
of the BLUE connector.
Troubleshooting
Electrical system
Stelvio 1200 NTX MY11
ELE SYS - 114
Summary of Contents for Stelvio 1200 MY11 2011
Page 1: ...SERVICE STATION MANUAL B043090 Stelvio 1200 NTX MY11 ...
Page 4: ......
Page 6: ...INDEX OF TOPICS CHARACTERISTICS CHAR ...
Page 54: ...INDEX OF TOPICS SPECIAL TOOLS S TOOLS ...
Page 61: ...INDEX OF TOPICS MAINTENANCE MAIN ...
Page 72: ...INDEX OF TOPICS ELECTRICAL SYSTEM ELE SYS ...
Page 133: ...INDEX OF TOPICS ENGINE FROM VEHICLE ENG VE ...
Page 146: ...INDEX OF TOPICS ENGINE ENG ...
Page 147: ...Gearbox Diagram key 1 Ball bearing Stelvio 1200 NTX MY11 Engine ENG 147 ...
Page 255: ...INDEX OF TOPICS POWER SUPPLY P SUPP ...
Page 267: ...INDEX OF TOPICS SUSPENSIONS SUSP ...
Page 295: ...INDEX OF TOPICS CHASSIS CHAS ...
Page 326: ...INDEX OF TOPICS BRAKING SYSTEM BRAK SYS ...
Page 356: ...INDEX OF TOPICS BODYWORK BODYW ...