Fault isolation procedures, Step e procedure condition action – Bendix Commercial Vehicle Systems VORAD EVT-300 TROUBLESHOOTING User Manual
Page 36
Fault Isolation Procedures
2-25
Code 13, 34 (SID 9, FMI 2, 4, 5, 12) Driver Display Unit, continued
Step E
Procedure
Condition
Action
1. Key off.
2. Disconnect Central Processing
Unit 32-way connector.
3. Measure resistance between:
•
Central Processing
Unit 32-way
connector pin D5
and Driver Display
4-way connector
pin B.
•
Central Processing
Unit 32-way
connector pin D5
and ground.
If resistance between pin D5
and pin B is 0 to .3 ohms and
if resistance between pin D5
and ground is more than 10K
ohms or open circuit [OL]
If any of the above conditions
are not met
Go to Step F.
Repair OEM wiring harness
between Driver Display Unit
and Central Processing Unit.
Go to Step V.
OHMS
V
A
COM
OHMS
GROUND
V
A
COM
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
D
C
B
A