HUSABERG FE 450 AUS, Repair Manual

Page: 166 / 285

FAULT CODE
164
Flash code FI warning
lamp (MIL)
45 FI warning lamp ( MIL ) flashes 4x long, 5x short
Display on diagnostic tool P0031
"Heater lambda sensor cylinder 1, sensor 1"
"Open/short circuit to ground"
Error level condition
Malfunction in the circuit:
≥
3 s
Function check Checking the heating lambda sensor ( p. 164)
Possible cause Heating lambda sensor - power supply is faulty ( p. 164)
Heating lambda sensor - value is not plausible ( p. 165)
Heating lambda sensor - control line is open ( p. 165)
Heating lambda sensor - control line has a short circuit to sensor ground ( p. 166)
Heating lambda sensor - control line has a short circuit to ground (terminal 31) ( p. 166)
Checking the heating lambda sensor
Condition
The diagnostic tool is connected and active.
–
Select the model type.
–
Select "ECU Diagnostic" .
–
Highlight the
"Engine electronics EXC"
control unit.
–
Press
"Continue"
.
–
Select
"actuator test"
.
–
"Please enter password:"
–
Press "Continue" .
–
Select "Heating lambda sensor cylinder 1" .
–
Press "Continue" .
–
Read the information page in the HUSABERG diagnostic tool and, with "Continue" , begin the actuator test.
Lambda sensor
"Function Hego Sensor Bank 1"
at test start
Voltage "Hego1AD"
5 V
Lambda sensor
"Function Hego Sensor Bank 1"
at test end
Voltage "Hego1AD"
0 V
» If the displayed value is equal to the setpoint value:
–
Delete the fault code.
–
Make a test ride.
–
Read out the fault code.
» If the displayed value is not equal to the setpoint value:
–
Check the next possible cause:
Heating lambda sensor - power supply is faulty (
p. 164)
Heating lambda sensor - power supply is faulty
Condition
The diagnostic tool is connected and active.
The EFI control unit is connected.
Lambda sensor is disconnected.