User's Manual

Fault Isolation Procedures
Power-Up Sequence Test
2-8
Power-Up Sequence Test, continued
Step D Procedure Condition Action
1. Key off.
2. Measure resistance between:
• Central Processing
Unit 32-way
connector pin D4
and Driver Display
4-way connector
pin C.
• Central Processing
Unit 32-way
connector pin D4
and ground.
If resistance between pin D4
and pin C is 0 to .3 ohms and
if resistance between pin D4
and ground is more than 10K
ohms or open circuit [OL]
If any of the above conditions
are not met
Go to Step E.
Repair OEM wiring harness between
Driver Display Unit and Central
Processing Unit. Go to Step V.
1
CD
2
3
4
5
6
7
8
9
10
11
12
13
14
16
15
1
CD
2
3
4
5
6
7
8
9
10
11
12
13
14
16
15
D C B A
OHMS
V ACOM
OHMS
GROUND
V ACOM