TM 5-3805-298-23-4
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Table 1. Arctic Troubleshooting Procedures - Continued.
0395
MALFUNCTION
TEST OR INSPECTION
CORRECTIVE ACTION
3. Arctic Heater Does Not
3. Turn battery disconnect switch to
Turn ON - Continued
the OFF position (TM 5-3805-298-
10).
4. Remove arctic heater fuse
(TM 5-3805-298-10).
5. Using a digital multimeter
Resistance 5.0 Ohms or Less -
(WP 0174), measure resistance
Proceed to Test Step 6.
between fuse terminals.
Resistance Greater Than 5.0 Ohms -
Proceed to step 6.
6. Disconnect lower cab wiring
harness connector C-C2
(WP 0012, Figure 227) from arctic
heater wiring harness connector
HJ-C1 (WP 0012, Figure 228).
7. Using digital multimeter
Continuity - Replace arctic heater
(WP 0174), test for continuity
wiring harness (WP 0400).
between lower cab wiring harness
Install new arctic heater unswitched
connector HJ-C2 terminal A3
fuse (TM 5-3805-298-10).
(WP 0012, Figure 229) and
Proceed to Test Step 9.
machine ground.
No Continuity - Replace lower cab
wiring harness (WP 0291).
Install new arctic heater unswitched
fuse (TM 5-3805-298-10).
Proceed to Test Step 9.
Test Step 6. Test Arctic Heater
Voltage Supply Circuit for an Open.
1. Disconnect lower cab wiring
harness connector C-C2
(WP 0012, Figure 227) from arctic
heater wiring harness connector
HJ-C1 (WP 0012, Figure 228).
2. Using digital multimeter
Resistance 5.0 Ohms or Less -
(WP 0174), measure resistance
Proceed to step 3.
between arctic heater wiring
Resistance Greater Than 5.0 Ohms -
harness connector HJ-C2 terminal
Replace arctic heater wiring harness
A3 (WP 0012, Figure 229) and
arctic heater wiring harness
Proceed to Test Step 9.
connector HJ-C1 (WP 0012,
Figure 228) terminal 5.
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