HUSABERG FE 450 AUS, Repair Manual

Page: 183 / 285

FAULT CODE
181
Flash code FI warning
lamp (MIL)
12 FI warning lamp ( MIL ) flashes 1x long, 2x short
Display on diagnostic tool P0118
"Coolant temperature sensor"
"Input signal too high"
Error level condition
Coolant temperature sensor cylinder 1 voltage
"TWAD"
:
≥
4.785 V
Time:
≥
3 s
Function check Coolant temperature sensor cylinder 1 - checking the voltage ( p. 181)
Possible cause Coolant temperature sensor - value not plausible ( p. 181)
Coolant temperature sensor - signal line has a short circuit to plus (terminal 30) ( p. 182)
Coolant temperature sensor - signal line has a short circuit to ignition plus (terminal 15)
( p. 182)
Coolant temperature sensor - signal line has a short circuit to the sensor power supply ( p. 183)
Coolant temperature sensor - signal line is open ( p. 183)
Coolant temperature sensor - ground line is open ( p. 183)
Coolant temperature sensor cylinder 1 - checking the voltage
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 "Measurement values" .
–
Highlight "Mixture preparation, general" .
–
Press "Continue" .
–
Highlight the measured value "Coolant temperature sensor cylinder 1 voltage (TWAD)" and deselect the other parameters with "Select
measured value" .
Coolant temperature sensor cylinder 1 voltage "TWAD" 0.138… 4.784 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 above the setpoint value:
–
Check the next possible cause:
Coolant temperature sensor - value not plausible (
p. 181)
Coolant temperature sensor - value not plausible
Condition
Th e diagnostic tool is disconnected.
Coolant temperature sensor is disconnected.
400599-10
Coolant temperature sensor - check the resistance
–
Measure the resistance between the specified points.
Coolant temperature sensor Pin
1
–
Coolant temperature sensor Pin
2
Coolant temperature sensor
Resistance at:
−
30 °C (
−
22 °F) 22.86… 27.94 k
Ω
Resistance at:
−
20 °C (
−
4 °F) 13.50… 16.50 k
Ω
Resistance at:
−
10 °C (14 °F) 8.24… 10.08 k
Ω
Resistance at: 0 °C (32 °F) 5.17… 6.31 k
Ω
Resistance at: 10 °C (50 °F) 3.33… 4.07 k
Ω
Resistance at: 20 °C (68 °F) 2.21… 2.70 k
Ω
Resistance at: 30 °C (86 °F) 1.49… 1.83 k
Ω
Resistance at: 40 °C (104 °F) 1.04… 1.27 k
Ω
Resistance at: 50 °C (122 °F) 730… 892
Ω