12 VDC AND 24 VDC CIRCUITS DO NOT OPERATE (CONT)

TM 9-2320-366-20-1

e3. 12 VDC AND 24 VDC CIRCUITS DO NOT OPERATE (CONT)

KNOWN INFO

TEST OPTIONS

Circuit breakers CB70 OK.

Continuity Test or

Battery(ies) OK.

STE/ICE-R Test #91

Is continuity present from

POSSIBLE PROBLEMS

REASON FOR QUESTION

terminal lug TL65 to

If continuity is not present,

Faulty cab to chassis ground

terminal lug TL64?

cab to chassis ground strap is

strap.

faulty.

Faulty PDP to cab ground

cable.

Faulty dashboard cable

assembly.

Replace cab to chassis ground

YES

strap (para 7-78).

2-266.8

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