APRILIA RSV4 RR Service Station Manual page 185

RSV4 RR/RF
Electrical specifications
•
Heater circuit: 7-9Ω at ambient temp.
Pin out:
1. Sensor signal + (black wire)
2. Sensor signal - (grey wire)
3. Heater ground connection (white cable)
4. Heater power supply (white cable)
DIAGNOSTIC TOOL:PARAMETERS
Lambda probe
•
Example value with key ON: about
3300 mV
•
Example value with engine on:
100-1000 mV
If there is a short circuit at + 5 V or higher, the
lambda probe parameter is not equal to the value
read by the control unit, but a recovery value is
displayed
Lambda correction
•
Example value with key ON: 0 %
•
Example value with engine on: -10% /
+10%
In closed loop, the value must be close to 1.00
(values not within the - -15% / +15% interval indi-
cate a fault). 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 value is
reached and remains unchanged for a certain
time, the lambda probe functional diagnosis is ac-
tivated, resulting in it being deactivated.
This diagnosis is activated when the correction
constantly arrives -25%.
CAUTION
BEFORE CARRYING OUT ANY TROUBLESHOOTING,
CAREFULLY READ THE GENERAL TROUBLESHOOTING
CONCEPTS FOR ELECTRICAL DEVICES AT THE BEGIN-
NING OF THE CHECK AND CONTROL SECTION IN THE
ELECTRICAL SYSTEM CHAPTER.
DIAGNOSTIC TOOL: STATUSES
Electrical system
ELE SYS - 185