Testing Passenger Handwarmer Switch; Testing Passenger Handwarmer Elements; Testing Seat Heater Harness/Switches - Arctic Cat Sno Pro 120 Service Manual

5. With the thumb warmer toggle in the high position,
connect one ohmmeter lead to pin (C) and the other
ohmmeter lead to pin (A). The meter must read 1
ohm or less resistance.
 NOTE: If either test does not read within specifica-
tion, replace the complete control assembly.
6. With the handwarmer toggle in the low position,
connect one ohmmeter lead to pin (C) and the other
ohmmeter lead to pin (D). The meter must read 1
ohm or less resistance.
7. With the handwarmer toggle in the high position,
connect one ohmmeter lead to pin (C) and the other
ohmmeter lead to pin (E). The meter must read 1
ohm or less resistance.
 NOTE: If either test does not read within specifica-
tion, replace the complete control assembly.
INSTALLING
1. Connect the handlebar/thumb warmer harness to the
switch; then place the control assembly on the han-
dlebar.
2. Secure with the four screws; then install the handle-
bar pad.
Testing Passenger
Handwarmer Switch
1. Disconnect the lead wires from the switch.
2. With the switch in the LO position, connect one
ohmmeter lead to the green/white wire at the connec-
tor; then connect the other ohmmeter lead to the
brown wire at the connector. The meter must read
less than 1 ohm of resistance.
3. With the switch in the HI position, connect one ohm-
meter lead to the green/blue wire at the connector;
then connect the other ohmmeter lead to the brown
wire at the connector. The meter must read less than
1 ohm of resistance.
Testing Passenger
Handwarmer Elements
 NOTE: During this test, resistance will vary due to
temperature; therefore, this test should be made at
room temperature of 20° C (68° F).
1. Disconnect the lead wires from the main wiring har-
ness.
2. For the LO position, connect one ohmmeter lead to
the green/white wire from the element; then connect
the other ohmmeter lead to the green wire from the
element. The meter must read between 23.8-32.2
ohms.
3. For the HI position, connect one ohmmeter lead to the
green/blue wire from the element; then connect the
other ohmmeter lead to the green wire from the ele-
ment. The meter must read between 8.7-11.7 ohms.
Testing Seat Heater
Harness/Switches
 NOTE: The seat heater elements cannot be tested.
OPERATOR HEATER SWITCH -
Resistance
 NOTE: The element connectors are located at the
rear of the front seat beneath the flap.
1. Disconnect the main harness/element connector.
2. Connect one ohmmeter lead to the red/yellow main
harness wire; then connect the other ohmmeter lead
to the green/red main harness wire. The meter must
read the following ± 5%:
LO
HI
 NOTE: If resistance is not within specification, trou-
bleshoot the switch connector located below the
steering support. If the switch connector tests good,
replace the switch.
PASSENGER HEATER SWITCH -
Resistance
1. Disconnect the main harness/element connector.
2. Connect one ohmmeter lead to the red/blue main har-
ness wire; then connect the other ohmmeter lead to
the green/red main harness wire. The meter must
read the following ± 5%:
LO
HI
 NOTE: If resistance is not within specification, trou-
bleshoot the switch connector located beneath the
seat. If the switch connector tests good, replace the
switch.
OPERATOR/PASSENGER SWITCH -
Voltage
1. Disconnect the main harness/element connector.
 NOTE: For this procedure, test the main harness
side of the connector, not the element side of the
connector.
2. Connect one meter lead to the red/blue main harness
wire; then connect the other meter lead to the black
main harness wire.
3. Start the engine. The meter must read 12-15 volts.
 NOTE: If this voltage test does not read within spec-
ification, troubleshoot the main harness, F-2 fuse, K-
2 relay, or the F-7 main fuse.
4.32K ohms
3.75K ohms
5
4.32K ohms
3.75K ohms
5-23