Blink Code 21 - Husqvarna FC 450 2020 Owner's Manual

Blink code for malfunc-
tion indicator lamp
02 Malfunction indicator lamp flashes 2x short
Crankshaft speed sensor – circuit fault
Error level condition
Blink code for malfunc-
tion indicator lamp
06 Malfunction indicator lamp flashes 6x short
Throttle valve position sensor circuit A – circuit fault
Error level condition
Throttle valve position sensor circuit A – input signal too high
Blink code for malfunc-
tion indicator lamp
09 Malfunction indicator lamp flashes 9x short
Induction manifold pressure sensor – circuit fault
Error level condition
Induction manifold pressure sensor – input signal too low
Blink code for malfunc-
tion indicator lamp
12 Malfunction indicator lamp flashes 1x long, 2x short
Coolant temperature sensor – circuit fault
Error level condition
Coolant temperature sensor – input signal too low
Blink code for malfunc-
tion indicator lamp
13 Malfunction indicator lamp flashes 1x long, 3x short
Intake air temperature sensor – circuit fault
Error level condition
Intake air temperature sensor – input signal too low
Blink code for malfunc-
tion indicator lamp
15 Malfunction indicator lamp flashes 1x long, 5x short
Tilt sensor – input signal too low
Error level condition
Tilt sensor – input signal too high
Blink code for malfunc-
tion indicator lamp
21 Malfunction indicator lamp flashes 2x long, 1x short
Battery voltage – input voltage too high
Error level condition
Blink code for malfunc-
tion indicator lamp
22 Malfunction indicator lamp flashes 2x long, 2x short
Gear position sensor – circuit fault
Error level condition
Gear position sensor – input signal too high
Gear position sensor – malfunction
Blink code for malfunc-
tion indicator lamp
33 Malfunction indicator lamp flashes 3x long, 3x short
Injection valve cylinder 1 – circuit fault
Error level condition

BLINK CODE 21

143