Workman GTX Electric
Page 3A -- 8
Electrical System
Troubleshooting
CAUTION
Remove all jewelry, especially rings and
watches, before doing any electrical trouble-
shooting or testing. Before working on the vehi-
cle electrical system, open the battery circuit by
disconnecting the conductors between the bat-
tery pack and vehicle components (see Opening
Battery Circuit in the General Information sec-
tion of this chapter). Connect the battery circuit if
a test procedure requires battery voltage.
For effective troubleshooting and repairs, there must be
a good understanding of the electrical circuits and com-
ponents used on this vehicle (see Electrical Schematic
and wire harness drawings in Chapter 6 -- Electrical
Drawings).
If the vehicle has any switches by--passed, they must be
reconnected for proper vehicle operation, troubleshoot-
ing and safety.
General Run Problems
NOTE: Check status indicator light on dash panel or
controller LED for possible faults whenever diagnosing
vehicle electrical circuit problems (see Controller in the
Component Testing section of this chapter).
Problem
Possible Causes
Main contactor clicks, but vehicle will not operate. Battery charge is low (check battery discharge
indicator on dash).
Battery cables are loose, corroded or damaged.
Cable connection(s) at main contactor is/are loose or
corroded.
Cable connection(s) at controller is/are loose or
corroded.
Cable connection(s) at traction motor is/are loose or
corroded.
Traction motor is faulty (check status indicator light on
dash or LED on controller for possible fault).
Controller is faulty (check status indicator light on dash
or LED on controller for possible fault).
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