Workman MDX--D
Electrical System
Page 5 -- 5
Troubleshooting
CAUTION
Remove all jewelry, especially rings and
watches, before doing any electrical trouble-
shooting or testing. Disconnect the battery
cables unless the test requires battery voltage.
For effective troubleshooting and repairs, you must
have a good understanding of the electrical circuits and
components used on this vehicle (see electrical draw-
ings in Chapter 7 -- Electrical Drawings).
If the vehicle has any interlock switches by--passed,
they must be reconnected for proper troubleshooting
and safety.
Starting Problems
Problem
Possible Causes
Starter solenoid clicks, but starter will not crank.
Battery is discharged.
Battery cables are loose or corroded.
Battery ground to frame is loose or corroded.
Wiring at starter is faulty.
Starter solenoid is faulty.
Starter is faulty and causing an incomplete circuit for
the starter solenoid.
Nothing happens when start attempt is made.
Brake pedal is not depressed.
Battery is discharged.
In--line primary fuse (10 ampere) is loose or faulty.
Battery cables are loose or corroded.
Battery ground to frame is loose or corroded.
Wiring to the start circuit components is loose,
corroded or damaged (see electrical drawings in
Chapter 7 -- Electrical Drawings).
Brake pedal switch is out of adjustment or faulty.
Start relay or circuit wiring is faulty.
The ignition switch or circuit wiring is faulty.
Fuse block is faulty.
Fusible link harness at the engine starter motor has
faulty link(s) so battery power is not available to vehicle
electrical system.
Starter solenoid or circuit wiring is faulty.
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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...