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
Resistance Less Than 5.0 Ohms -
nals Do Not Operate in
resistance between control indica-
Replace control indicator harness
Either Right or Left Posi-
tor switch (WP 0009, Figure 289)
(WP 0283).
tion, Brake Lights Oper-
terminal F and H. Resistance
Connect the cab lower wiring harness
ate Normally - Continued
should be less than 5.0 ohms.
connector P-C20 (WP 0009, Figure
349) to flasher module (WP 0266).
Proceed to step 3.
Resistance 5.0 Ohms or Greater -
Replace control indicator switch (WP
0283).
Connect the control indicator harness
connector PE-C11 (WP 0009, Figure
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.
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 4. Check for Shorted
Control Indicator Switch.
1. Disconnect the control indicator
harness connector PE-C10 (WP
0009, Figure 288) from control
indicator switch (WP 0009, Figure
289).
0023-65