FAULT CODE 001, 002, 010, OR 011: ADVANCED WARNING - OVERVOLTAGE SHUTDOWN, ADVANCED WARNING - UNDERVOLTAGE SHUTDOWN, OVERVOLTAGE SHUTDOWN OR UNDERVOLTAGE SHUTDOWN.

TM 9-2320-364-34-1

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

2. FAULT CODE 001, 002, 010, OR 011: ADVANCED WARNING - OVERVOLTAGE

SHUTDOWN, ADVANCED WARNING - UNDERVOLTAGE SHUTDOWN,

OVERVOLTAGE SHUTDOWN OR UNDERVOLTAGE SHUTDOWN.

INITIAL SETUP

References

TM 9-2320-364-10

Tools and Special Tools

TM 9-2320-364-20

Tool Kit, General Mechanic's: Automotive

(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

KNOWN INFO

TEST OPTIONS

WARNING

Read WARNING

Visual inspection.

Battery checks OK at unit

on Page 2-766.11

level.

REASON FOR QUESTION

Arctic heater power circuit

check OK at unit level.

If arctic heater operates nor-

Vehicle 24 volt charging

mally after replacing arctic

system check OK at unit level.

Does arctic heater operate

heater control unit, fault has

normally after replacing arctic

been corrected.

POSSIBLE PROBLEMS

heater control unit?

Arctic heater control unit faulty.

If arctic heater indicator

flashes or fault code retrieval

device (FCRD) displays fault

code 001, 002, 010 or 011,

fault not corrected. Notify

supervisor.

If arctic heater indicator

flashes or fault code retrieval

device (FCRD) displays fault

code other than 001, 002,

010 or 011, troubleshoot fault

YES

code displayed (TM

9-2320-364-20).

Fault corrected.

-776

2-10C