FAULT CODE 064 OR 065: FLAME SENSOR OPEN CIRCUIT OR FLAME SENSOR SHORT CIRCUIT.

TM 9-2320-364-34-1

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

12. FAULT CODE 064 OR 065: FLAME SENSOR OPEN CIRCUIT OR

FLAME SENSOR SHORT CIRCUIT.

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 procedure (Para 2-17.1 Fault 1) (all

conditions) and you were referred here.

START

WARNING

KNOWN INFO

TEST OPTIONS

Read WARNING

Continuity test.

on Page 2-766.79

Nothing.

STE/ICE #91.

POSSIBLE PROBLEMS

REASON FOR QUESTION

If resistance reading is be-

Arctic heater flame sensor

Is resistance measured across

tween 900 and 1100 ohms at

faulty.

arctic heater flame sensor be-

room temperature, arctic heater

Arctic heater control unit faulty.

control unit may be faulty. If

tween 900 and 1100 ohms, at

not, arctic heater flame sensor

room temperature?

is faulty.

Replace arctic

heater flame sen-

sor (Para 18-22).

Verify repair, go to

Step 2 of this

Fault.

YES

Replace arctic

heater control unit

(Para 18-2.2).

Verify repair, go to

Step 2 of this

Fault.

2-784