SkyTrak 8042 Service Manual - Manual (Page 812)

9.221 Model 8042, 10042, 10054 Legacy Rev. 10/03
Electrical System
4. Reach up and under the dash to work the ignition
switch and wiring out of the mounting hole.
5. Disconnect the ignition switch connectors from the
cab harness connectors, and remove the switch
from the vehicle.
b. Disassembly
DO NOT disassemble the ignition switch. Replace a
defective switch with a new part.
c. Inspection and Replacement
To determine the proper operation of the ignition key
switch, using the following charts, test the wires on the
back of the switch for continuity with an ohmmeter.
Test the ignition key switch for continuity, by checking
from the ignition (BLUE) wire to each of the following
wires in each switch position. Continuity (X) should be
present as indicated in the following chart:
Test the ignition key switch for continuity, by checking
from the ignition (RED) wire to each of the following wires
in each switch position. Continuity (X) should be present
as indicated in the following chart:
If all wires do not show proper continuity, replace the
ignition switch.
d. Ignition Switch Installation
1. Connect the ignition key switch to the cab harness
connectors.
2. Reach up and under the dash to work the ignition
switch into the ignition switch-mounting hole on the
lower right side of the dash (8).
3. Align the ignition switch so that when it is in the OFF
position (2), the key slot is positioned vertically (straight
up and down). Install the hex nut securing the
ignition switch to the dash. DO NOT overtighten.
4. Install the lower access panel (7).
5. If the vehicle has one battery, connect the
negative (-) battery cable to the negative (-) battery
terminal (5).
If the vehicle has dual batteries, connect both
negative battery cables to both negative (-) battery
terminals (6).
Switch Position
Test from BLUE wire to: OFF RUN START
WHT Wire (10 Gauge)
Pin B on 3-Pin Connector X
Switch Position
Test from RED wire to: OFF RUN START
PUR Wire (10 Gauge)
Pin B on 5 Pin Connector X X
RED/BLK Wire (16 Gauge)
Pin C on 5 Pin Connector X X