TM 5-3805-293-23-2
0023
Table 1. Cab Electrical Troubleshooting Procedures - Continued.
MALFUNCTION
TEST OR INSPECTION
CORRECTIVE ACTION
22. One Or Both Rear Flood
3. Using digital multimeter, test for
Resistance 5.0 Ohms Or Less - Pro-
Lamps Do Not Operate,
continuity between harness con-
ceed to step 4.
Both Front and Middle
nector AG-C2 (WP 0009, Figure
Resistance More Than 5.0 Ohms -
Flood Lamps Operate
312) terminal 2 and machine
Proceed to step 5.
Normally - Continued
ground.
Resistance should be less than
5.0 ohms.
4. Using digital multimeter, test for
Resistance 5.0 Ohms Or Less - Pro-
continuity between harness con-
ceed to step 5.
nector AG-C12 (WP 0009, Figure
Resistance More Than 5.0 Ohms -
312) terminal 2 and machine
Replace rear lamps wiring harness
ground.
(WP 0178).
Resistance should be less than
Proceed to step 17.
5.0 ohms.
5. Disconnect rear lamps wiring har-
ness connector A-C20 (WP 0009,
Figure 311) from rear chassis wir-
ing harness connector FA-C29
(WP 0009, Figure 310).
6. Using digital multimeter, test for
Resistance 5.0 Ohms Or Less - Pro-
continuity between harness con-
ceed to step 7.
nector AG-C2 (WP 0009, Figure
Resistance More Than 5.0 Ohms -
312) terminal 2 and harness con-
Replace rear lamps wiring harness
nector A-C20 (WP 0009, Figure
(WP 0178).
311) terminal 1.
Proceed to step 17.
Resistance should be less than
5.0 ohms.
7. Using digital multimeter, test for
Resistance 5.0 Ohms Or Less - Pro-
continuity between harness con-
ceed to step 8.
nector AG-C2 (WP 0009, Figure
Resistance More Than 5.0 Ohms -
312) terminal 1 and harness con-
Replace rear lamps wiring harness
nector A-C20 (WP 0009, Figure
(WP 0178).
311) terminal 9.
Proceed to step 17.
Resistance should be less than
5.0 ohms.
8. Disconnect rear chassis wiring
harness connector FA-C22 (WP
0009, Figure 47) from cab lower
wiring harness connector P-C69
(WP 0009, Figure 46).
9. Install a jumper wire between har-
ness connector FA-C22 (WP
0009, Figure 47) terminal 29 and
terminal 69.
0023-143