TM 5-2410-240-23-1
0021
Table 1. Cab Troubleshooting Without Codes. - Continued.
0021
MALFUNCTION
TEST OR INSPECTION
CORRECTIVE ACTION
5. All Front and Rear Flood Lamps
3. Disconnect harness connec-
Do Not Work - Continued
tor C-C31 (WP 0018, Figure
28) from flood lamp relay (WP
0018, Figure 55).
4. Using digital multimeter, test
No Continuity - Proceed to step 5.
for continuity (WP 0283)
Continuity - Replace lower cab
between C-C4 terminal 3 and
wiring harness (WP 0228).
all other terminals in C-C4
Install new lamp relay fuse on fuse
(WP 0018, Figure 16).
block.
Install fuse panel front cover on
machine (TM 5-2410-240-10).
Verify proper operation of flood
lamps (TM 5-2410-240-10).
5. Using digital multimeter, test
No Continuity - Proceed to Test
for continuity (WP 0283)
Step 11.
between C-C4 terminal 3 (WP
Continuity - Replace lower cab
0018, Figure 16) and ground.
wiring harness (WP 0228).
Install new lamp relay fuse on fuse
block.
Install fuse panel front cover on
machine (TM 5-2410-240-10).
Verify proper operation of flood
lamps (TM 5-2410-240-10).
Test Step 11. Test 647-GN Flood
Lamp Relay On/Off Circuit for
Short to Other Circuits in Lower
Cab Wiring Harness.
1. Using digital multimeter, test
No Continuity - Proceed to step 2.
for continuity (WP 0283)
Continuity - Replace lower cab
between C-C30 terminal 2 and
wiring harness (WP 0228).
all other terminals in C-C30
Install new lamp relay fuse on fuse
(WP 0018, Figure 27).
block.
Install fuse panel front cover on
machine (TM 5-2410-240-10).
Verify proper operation of flood
lamps (TM 5-2410-240-10).
0021-91
