Workman MDX--D
Electrical System
Page 5 -- 22
Backup Switch (Optional Kit)
The optional backup switch is a four (4) terminal, two (2)
circuit switch that is used to energize the backup alarm
when the shift lever is in the reverse position. The nor-
mally open switch circuit is used while the normally
closed switch circuit is not used. If equipped, this switch
is attached to the shift bracket in the seat base (Fig. 30).
Switch Testing
1. Position vehicle on a level surface, set parking
brake, turn ignition switch OFF and remove key from
switch. Make sure that vehicle shift lever is in the NEU-
TRAL position.
2. Remove four (4) screws and carefully slide shift
bracket assembly from front of seat base to gain access
to backup switch.
3. Unplug vehicle wire harness connector from backup
switch.
4. With the use of a multimeter (ohms setting), check
that the normally open switch contacts (Fig. 31) do not
have continuity when the switch plunger is extended.
The contacts should have continuity when the switch
plunger is fully depressed.
5. When testing is complete, connect wire harness con-
nector to backup switch. Slide shift bracket into seat
base and secure with four (4) screws.
1. Seat base
2. Screw (4 used)
3. Shifter plate
4. Backup switch
Figure 30
4
3
2
1
1. Backup switch
2. Normally open contact
Figure 31
2
1
2
Summary of Contents for Workman MDX-D
Page 2: ...Workman MDX D This page is intentionally blank...
Page 4: ...Workman MDX D This page is intentionally blank...
Page 12: ...0 09375 Workman MDX D Page 2 2 Product Records and Maintenance Equivalents and Conversions...
Page 20: ...Workman MDX D Page 3 4 Diesel Engine This page is intentionally blank...
Page 53: ...Workman MDX D Drive Train Page 4 19 This page is intentionally blank Drive Train...
Page 129: ...Workman MDX D Page 6 27 Chassis This page is intentionally blank Chassis...
Page 150: ...Workman MDX D Page 6 48 Chassis This page is intentionally blank...
Page 152: ...Page 7 2 Workman MDX D Electrical Drawings This page is intentionally blank...
Page 153: ...Page 7 3 Electrical Schematic Workman MDX D Relays are shown as de energized...
Page 154: ...Page 7 4 Glow Plug Circuits Power Current Control Current Indication Current...
Page 155: ...Page 7 5 Start Circuits Power Current Control Current Indication Current...
Page 156: ...Page 7 6 Run Circuits Power Current Control Current Indication Current...
Page 157: ...Page 7 7 This page is intentionally blank...
Page 158: ...Page 7 8 Main Electrical Harness Workman MDX D Wiring Drawing...
Page 160: ...Page 7 10 Engine Electrical Harness Workman MDX D BROWN BLACK FUSIBLE LINK RED BLUE WHITE BLUE...