Fault Isolation Procedures

Power-Up Sequence Test, continued

Step G

Procedure

Condition

Action

 

 

 

 

1.

Key off.

 

2.

Disconnect Central Processing

 

 

Unit 32-way connector and Front

 

 

Antenna 4-way connector.

 

3.

Measure resistance between:

If resistance between pin C3 and

 

 

 

 

 

Central Processing

 

pin 4 is 0 to .3 ohms and if

 

 

 

 

Unit 32-way

resistance between pin C3

 

 

connector pin C3

and ground is more than 10K

 

 

and Antenna

ohms or open circuit [OL]

 

 

4-way connector

 

 

 

pin 4.

 

 

Central Processing

 

 

 

Unit 32-way

 

 

 

connector pin C3

 

 

 

and ground.

 

If any of the above conditions are not met

Go to Step H.

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

DC

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15 16

 

OHMS

 

V

COM

A

DC

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15 16

 

OHMS

 

V

COM

A

GROUND

1

2

4

3

2-11

Page 22
Image 22
BENDIX BW2849 manual Step G, Antenna 4-way connector