ELECTRICAL SYSTEM TROUBLESHOOTING PROCEDURES - CONTINUED
TEST OR INSPECTION
d. Connect meter positive lead where
38. Heater Will Not Operate or
black wire connects (switch side).
Will Not Operate in High
Speed or Low Speed Position
e. Connect meter negative lead to
(CCE Machine) - Continued.
either of the other two terminals
f. Toggle switch between all three
positions and observe meter.
g. Repeat Steps d through f for the
wire and LOW for wire, but not in OFF
39. Defrosters Will Not Operate
or Will Not Operate in High
The following procedure is applicable for both front and rear
Speed or Low Speed (CCE
Test defroster fan circuit voltage.
a. Place battery disconnect switch in
b. Check defroster fan fuse.
2. If fuse is not blown, reinstall fuse and
go to Step c.
c. Identify high speed and low speed
control wires at defroster control
switch with tags or similar ID
d. Disconnect high speed and low
speed control wires from defroster
f. Place battery disconnect switch in
g. Place defroster control switch to
low speed position and touch meter
positive lead to switch low speed
terminal. Observe meter reading.