Fault Isolation Procedures

Power-Up Sequence Test, continued

Step I

Procedure

Condition

Action

 

 

 

 

1.Key off.

2.Disconnect Central Processing Unit 32-way connector.

3.Measure resistance between:

Central Processing

 

If resistance between pin C5 and

 

Unit 32-way

 

pin 2 is 0 to .3 ohms and if

 

 

 

connector pin C5

 

resistance between pin C5

 

and Antenna 4-way

 

and ground is more than 10K

 

connector pin 2.

 

ohms or open circuit [OL]

Central Processing

 

 

 

Unit 32-way

 

 

 

connector pin

 

 

 

C5 and ground.

 

 

 

 

 

If any of the above conditions

 

 

 

are not met

Go to Step J.

Repair OEM wiring harness between Antenna and the 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

2-13

Page 24
Image 24
BENDIX BW2849 manual Measure resistance between Central Processing, Are not met, Go to Step J