TM 5-3805-293-23-2
0023
Table 1. Cab Electrical Troubleshooting Procedures - Continued.
MALFUNCTION
TEST OR INSPECTION
CORRECTIVE ACTION
12. Front and Rear Turn Sig- 2.
Using digital multimeter, measure
Continuity - Replace control indicator
nals Do Not Operate in
resistance between control indica-
switch (WP 0283).
Either Right or Left Posi-
tor switch (WP 0009, Figure 289)
Connect the control indicator harness
tion, Brake Lights Oper-
terminal F and machine ground.
connector PE-C11 (WP 0009, Figure
ate Normally - Continued
There should be no continuity.
287) to cab lower wiring harness con-
nector P-C11 (WP 0009, Figure 286)
(WP 0283).
Connect the cab lower wiring harness
connector P-C20 (WP 0009, Figure
349) to flasher module (WP 0266).
Proceed to step 3.
No Continuity - Replace control indi-
cator harness (WP 0283).
Connect the cab lower wiring harness
connector P-C20 (WP 0009, Figure
349) to flasher module (WP 0266).
Proceed to step 3.
3. Turn control indicator switch to
Right and Left Turn Signals Do Not
position SER. DRIVE, turn signal
Operate - Repeat troubleshooting
switch (TM 5-3805-293-10) to the
from the beginning.
right turn signal position and verify
Right and Left Turn Signals Oper-
right turn signal operates, then to
ate - Troubleshooting complete.
the left turn signal position and
verify left turn signal operates.
Test Step 5. Check the Output of
the Flasher Module.
1. Turn ignition switch and battery
disconnect switch to the OFF
position (TM 5-3805-293-10).
2. Connect the cab lower wiring har-
ness connector P-C20 (WP 0009,
Figure 349) to flasher module
(WP 0266).
3. Disconnect the cab lower wiring
harness connector P-C47 (WP
0009, Figure 330) from turn signal
switch (WP 0009, Figure 331)
(WP 0283).
4. Turn battery disconnect switch
and ignition switch to the ON posi-
tion (TM 5-3805-293-10).
0023-66
