FAULT CODE 033: BLOWER MOTOR SPEED FAULT. (Cont) -726250892

TM 9-2320-364-34-1

2-17.1. ARCTIC HEATER (MODEL B) TROUBLESHOOTING (CONT).

6. FAULT CODE 037, 042 OR 059: WATER PUMP IS NOT WORKING WATER

PUMP SHORT CIRCUIT OR WATER TEMPERATURE RISES TOO QUICKLY.

INITIAL SETUP

References

Tools and Special Tools

TM 9-2320-364-10

Tool Kit, General Mechanic's: Automotive

TM 9-2320-364-20

(Item 241, Appendix F)

Equipment Condition

STE/ICE-R (optional) (Item 15, Appendix F)

Engine OFF, (TM 9-2320-364-10)

Multimeter (Item 140, Appendix F)

Parking brake applied, (TM 9-2320-364-10)

Fault Code Retrieval Device (FCRD)

Wheels chocked, (TM 9-2320-364-10)

(Item 60.1, Appendix F)

NOTE

The following steps should only be used if troubleshooting was started at First Chart

for Diagnosis of Arctic Heater Troubleshooting procedures (Para 2-17.1 Fault 1) (all

conditions) and you were referred here.

START

WARNING

KNOWN INFO

TEST OPTIONS

Read WARNING

Coolant level checked at unit

Continuity test.

on Page 2-766.43

level.

STE/ICE-R #91.

Arctic heater coolant hose and

REASON FOR QUESTION

hose clamps checked at unit

level.

If resistance reading is be-

Is resistance measured across

Arctic heater coolant shutoff

tween 650 and 1000 ohms at

valves checked at unit level.

arctic heater temperature sen-

room temperature, arctic heater

sor between 650 and 1000

coolant pump may be faulty. If

POSSIBLE PROBLEMS

ohms, at room temperature?

not, arctic heater temperature

Arctic heater temperature

sensor is faulty.

sensor faulty.

Arctic heater coolant pump

faulty.

Replace arctic

heater tempera-

ture sensor

(Para 18-2.2).

Verify repair, go

to Step 2 of this

Fault.

YES

Replace arctic

heater coolant

pump (Para

18-2.2). Verify

repair, go to

Step 2 of this

fault.

2-428