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
Test Step 4. Test Fuel Metering Pump
Turn ON - Continued
Voltage Supply Circuit for an Open.
1. Disconnect rear frame wiring
harness connector M-C1
(WP 0012, Figure 57) from lower
cab wiring harness connector C-
C20 (WP 0012, Figure 56).
2. Using digital multimeter
Resistance 5.0 Ohms or Less -
(WP 0174), measure resistance
Proceed to step 3.
between rear frame wiring harness
Resistance Greater Than 5.0 Ohms -
connector M-C1 terminal 31
Replace rear frame wiring harness
(WP 0012, Figure 57) and rear
(WP 0295).
frame wiring harness connector
Proceed to Test Step 9.
M-C5 terminal 1 (WP 0012,
Figure 230).
3. Disconnect lower cab wiring
harness connector C-C2
(WP 0012, Figure 227) from arctic
heater wiring harness connector
HJ-C1 (WP 0012, Figure 228).
4. Using a digital multimeter
Resistance 5.0 Ohms or Less -
(WP 0174), measure resistance
Proceed to step 5.
between lower cab wiring harness
Resistance 5.0 Ohms or More-
connector C-C2 terminal 2
Replace lower cab wiring harness
(WP 0012, Figure 227) and lower
(WP 0291).
cab wiring harness connector C-
Proceed to Test Step 9.
C20 terminal 31 (WP 0012,
Figure 56).
5. Using a digital multimeter
Resistance 5.0 Ohms or Less -
(WP 0174), measure resistance
Replace arctic heater (WP 0402).
between arctic heater wiring
Proceed to Test Step 9.
harness connector HJ-C1
Resistance Greater Than 5.0 Ohms -
(WP 0012, Figure 228) terminal 2
Replace arctic heater wiring harness
and arctic heater wiring harness
connector HJ-C2 (WP 0012,
Proceed to Test Step 9.
Figure 229) terminal A1.
Test Step 5. Test Arctic Heater
Voltage Supply Circuit for a Short to
Ground.
1. Disconnect arctic heater wiring
harness connector HJ-C2
(WP 0012, Figure 229) from arctic
heater.
2. Turn battery disconnect switch to
the ON position (TM 5-3805-298-
10) for at least 30 seconds.
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