Power-up sequence test, continued, Step h procedure condition action – Bendix Commercial Vehicle Systems VORAD EVT-300 TROUBLESHOOTING User Manual

Page 23

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Fault Isolation Procedures

P

ow
er

-Up Sequence T

est

2-12

Power-Up Sequence Test, continued

Step H

Procedure

Condition

Action

1. Key off.

2. Measure resistance between:

• Central Processing

Unit 32-way
connector pin C4
and Antenna
4-way connector
pin 3.

• Central Processing

Unit 32-way
connector and pin C4
and ground.

If resistance between pin C4
and pin 3 is 0 to .3 ohms and
if resistance between pin C4
and ground is more than 10K
ohms or open circuit [OL]

If any of the above conditions
are not met

Go to Step I.

Repair OEM wiring harness between
Antenna and Central Processing Unit.
Go to Step V.

1

C

D

2

3

4

5

6

7

8

9

10

11

12

13

14

16

15

1

C

D

2

3

4

5

6

7

8

9

10

11

12

13

14

16

15

OHMS

V

A

COM

OHMS

GROUND

V

A

COM

1

2

3

4

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