TM 5-2420-231-23-1
0046
Table 1. All Wipers and Washers Do Not Operate - Continued.
046
MALFUNCTION
TEST OR INSPECTION
CORRECTIVE ACTION
3. Using a digital multimeter, test for
Continuity - Replace chassis options
All Wipers and Washers Do
continuity between chassis options
wiring harness (WP 0171).
Not Operate - Continued
wiring harness connector (WP
Connect all wiring harness connectors.
0007, Figure 42) terminal K and
Install instrument panel front cover (WP
machine ground. There should be
0174).
no continuity.
Install barrier curtain (WP 0099).
Install new wipers fuse (TM 5-2420-
231-10).
Proceed to Test Step 8.
No Continuity - Replace side options
wiring harness (WP 0255).
Connect all wiring harness connectors.
Install air cleaner barrier curtain (WP
0099).
Install instrument panel front cover (WP
0174).
Install new wipers fuse (TM 5-2420-
231-10).
Proceed to Test Step 8.
Test Step 6. Test Main Chassis and
Front Lights Wiring Harness Wiper/
Washer Voltage Supply Circuit for a
Short to Ground.
1. Remove front instrument panel
right-side cover (WP 0176).
2. Disconnect rear main chassis wir-
ing harness (WP 0007, Figure 25)
from side console wiring harness
(WP 0007, Figure 24).
3. Using a digital multimeter, test for Continuity - Proceed to step 4.
continuity between rear main chas- No Continuity - Proceed to Test Step 7.
sis wiring harness connector (WP
0007, Figure 25) terminal 1C and
machine ground. There should be
no continuity.
4. Remove headliner from cab (WP
0346).
5. Disconnect two front wiper motor
(WP 0007, Figure 63) connectors
from front lights wiring harness
(WP 0007, Figure 62) (WP 0183).
0046-11
