FAULT CODE 033: BLOWER MOTOR SPEED FAULT.

TM 9-2320-364-34-1

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

5. FAULT CODE 033: BLOWER MOTOR SPEED FAULT.

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)

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

Equipment Condition

Multimeter (Item 140, Appendix F)

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

Fault Code Retrieval Device (FCRD)

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

(Item 60.1, Appendix F)

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

NOTE

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

For Diagnosis of Arctic Heater Troubleshooting procedure (Para 2-17.1 Fault 1) (all

conditions) and you were referred here.

START

WARNING

KNOWN INFO

TEST OPTIONS

Read WARNING

on Page 2-766.35

Visual inspection.

Nothing.

POSSIBLE PROBLEMS

REASON FOR QUESTION

Arctic heater blower motor fault.

If blower motor does not oper-

Arctic heater control unit blower

Does arctic heater blower mo-

ate when external power is ap-

speed control power circuit

plied, arctic heater blower mo-

tor operate when external

faulty.

tor is faulty.

power is applied?

Arctic heater control unit blower

speed control circuit faulty.

Arctic heater control unit blower

motor speed sensor faulty.

Replace arctic

heater blower

(Para 18-2.2).

Verify repair, go to

Step 4 of

this Fault.

YES

2800

2--34 4

-766.